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Sentinel User Manual - Test and Measurement

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1. No active error Active error w Recent error Hold time set in the configuration pulldown menu for the Errors Panel Channel Errors The Channel Errors section displays a matrix of per channel errors There is a column for each channel in the configured surround format and a row for each error The displayed errors and their sources are Clip The true peak level is above the User Clip Level The User Clip Level is set in the Levels amp Metering settings panel p 62 Over The metered level is above the Overload Level The Overload Level is set in the Levels amp Metering settings panel p 62 Under The loudness is below the allowed threshhold The Threshold is set in the Loudness settings panel p 64 Hum There is an AC mains frequency component present The threshold is set in the Channel Analysis settings panel p 67 Bandwidth The LFE channel bandwidth exceeds the maximum The maximum is set in the Channel Analysis settings panel p 67 Repeat The audio stream repeats a constant value across consecutive samples The repeat threshhold is set in the Channel Analysis settings panel p 67 Valid The validity error flag is asserted User Manual Interchannel Errors The Interchannel Errors section displays errors which involve multiple channels These errors and their sources are Loudness Errors are displayed for short term and integrated loudness measurements The short term loudness error is asserte
2. date amp time settings panel 73 dc inputs amp temperature panel 58 dc inputs amp temperatures settings panel 70 device name 20 DHCP 8 digital interface panel 51 Dolby metadata panel 54 downmix compatibility display 31 downmix compatibility settings panel 68 E errors panel 48 Ethernet see network connection F firmware revisions 20 firmware updates 90 92 front panel 18 H histogram see signal histogram panel I input amp sources settings panel 61 installation 6 16 L Icd contrast 21 levels amp metering settings panel 62 Linear Time Code 14 34 log repository 15 34 76 81 loudness meter panel 34 loudness settings panel 64 LTC see Linear Time Code meters panel 25 mounting 7 N network connection 8 20 34 P password 20 60 91 power connection 7 R readings page 24 58 readings timeline panel 40 real time clock see clock real time S safety information 7 97 97 99 100 segment table 45 serial number 34 settings page 60 73 signal histogram panel 47 specifications 93 94 spectrum display 31 status bar 34 system requirements 8 7 time see clock real time true peak meters 28 W warranty 95 95 User Manual Qualis Audio Inc Lake Oswego Oregon ualis udie We re Listening
3. Levels amp Metering settings panel 62 Loudness Settings panel 64 Channel Analysis settings panel 67 Downmix Compatibility settings panel 68 DC Inputs amp Temperature settings panel 70 Alarms settings panel 71 Alarm Actions settings panel 72 Date amp Time settings panel 73 59 On the left of the Settings page is a navigation panel that lets you select which settings panels are visible It also lets you make changes to the settings and save them and switch to the Chapter 4 Readings page p 23 Aa Modify Save settings Unlocks the settings panels so settings can be modified A dia log box will appear reguesting a password default is audio and the button will change to Save Settings To save changes press the Save Settings button otherwise your changes will be discarded se Chapter 4 Readings page p 23 Panels displaying Sen tinel readings Switching to the readings panels will discard any unsaved changes to settings 2s Input amp Sources settings panel p 61 Selects input con nector signal format surround format and assignment of inputs to surround and ancillary channels Levels amp Metering settings panel p 62 Selects meter ballistics and scale reference level clio threshold and overload level Loudness settings panel p 64 Sets parameters for loud ness measurement loudness target limits for loudness error checking and minimum levels for dead channel indication kal Channel Analysis setting
4. The short term loudness is dis played graphically as a line on the left bargraph and numerically above it The short term loudness is compared to a user defined threshold displayed on the bargraph as athin red line When this threshold is exceeded for a user specified duration an error is generated When this error condition exists both the graphical and numeric short term loud ness displays will be red If the loudness remains below threshold the displays will be green This threshold is set relative to the Target loud ness value in the Loudness settings panel p 64 The short term loudness corresponds to a listeners perception of pro gram loudness The ability to set an upper limit on this measurement allows an early warning of listener dissatisfaction with loudness control The short term loudness is also displayed graphically on the Readings Timeline panel p 40 Integrated loudness measurements The right hand meter bar displays cumulative loudness readings The displayed readings depend on which loudness standard is configured The display provides an indicator a bar for an integrated loudness Readings page 35 36 level an indicator a little dot fora maximum loudness level and a pane that shows the loudness range The background of the bar shows the loudness error range as config ured in the Loudness settings panel p 64 The numeric accumu lated loudness value is displayed above the bar Numeric values for
5. The simplest way to create and update the repository is to let the user interface do it from your browser You need to do this to ensure the user interface has access to all logged readings Installation 15 In a production environment where the Sentinel is in operation continu ously you will also need to set up scheduled downloading so you are not depending on the user interface to keep the repository up to date In the user interface configuration options for defining the log repos itory and scheduling downloads are located in the pulldown menu on the readings navigation panel at the left of the readings page Create a log repository using the Select Repository option and set scheduled Log Save to Continuous to to let the user interface store data in the repository Chapter 6 Log Repository p 75 provides additional information In particular it describes how to schedule the downloading of log data separately from the user interface User Manual 3 Front Panel Front panel displays and controls 18 Front Panel menus 19 The Qualis Audio Sentinel is intended to be controlled over a network connection from a standard Javascript enabled browser However some of the settings are only accessible from the front panel princi pally those relating to network operation All settings affecting instru ment operation alarming and reporting are stored in non volatile RAM to ensure proper operation after power failure Fro
6. the video format is also indicated Interface Rate Sample rate of each audio channel carried in the inter face for SDI input includes synchronous or asynchronous indi cation Active Length Measured word width for each audio channel carried in the interface Channel Status Metadata Sample Time Time referenced to the start of the recording providing the same function as a recording index counter Time of Day Time of day referenced to midnight during the source encoding of the signal It should remain unchanged during sub sequent operations Source Four character representation of the audio source Destination Four character representation of the intended destination Common Metadata Format Professional or consumer format interface audio PCM or non audio coded audio content Emphasis Pre emphasis if any applied to the audio signal None 50 15 us ITU T J17 or Not Indicated Sample Rate Audio sample rate Width Active word length Alignment Level Alignment level used when creating the audio signal Not Indicated 18 dB As specified in SMPTE RP155 20 dB As specified in EBU R68 Reserved Metadata is set to an undefined bit pattern Channel Mode Usage of the two audio streams carried on the interface Not Indicated 2 Channel Streams are independent channels 1 Channel Only one stream is used Primary Secondary Streams are a primary and related sec ondary channel Stereo Streams are a stereo pair User Manual 1
7. 18 19 20 21 22 23 24 20 Channel 8 low Channel 7 high Channel 7 ground Channel 6 low Channel 5 high Channel 5 ground Channel 4 low Channel 3 high Channel 3 ground Channel 2 low Channel 1 high Channel 1 ground Individual cable shields to the low terminals and the center conductors to the corresponding high terminals Connect a single wire from one of the ground terminals to a ground on the source device Connections and cabling 85 Auxiliary connections Auxiliary connections 1 Sur loudness control appear on a DB25 connec 2 Ground tor 3 Anc loudness control 4 Alarm output 3 233 44 5 Ground 15 6 Alarm output 2 16 7 DC inputs 8 Ground 19 9 DC input 4 20 10 DC input 1 21 41 Ground OWNODOBRONAA 14 Sur loudness restart 15 Anc loudness restart 16 Ground 17 Alarm output 4 18 Alarm output 1 19 Ground 20 DC input 6 21 DC input 3 22 Ground 23 DC input 2 24 Linear Time Code high 25 Ground a n fwo ala oa n YO YO gwe 9 86 23 12 Linear Time Code low 13 3 3V 50mA limited Qualis Audio offers a Breakout Adapter p 87 which converts the 25 pin connector to 24 screw terminals This provides a convenient way of connecting auxiliary signals The LTC input is a differential inout that may be wired for either bal anced or unbalanced operation The input impedance is 22 kO each side to ground allowing bridging operation in most appli
8. Channel 2Fs Streams are interleaved samples of a single channel at double the interface frame rate L Channel 2Fs Streams are interleaved samples of left channel content at double the interface frame rate R Channel 2Fs Streams are interleaved samples of right channel content at double the interface frame rate Multi Channel Streams are part of a multichannel more than two signal User 5 User 6 Streams are a non standard user defined format Reserved Metadata is setto an undefined bit pattern Channel Number Channel identification number used only in the multi channel mode listed above User Bits Format of the interface user U bit stream Not Indicated 192 bit Framed synchronous to the channel status S bits remaining formatting undefined AES 18 Follows AES 18 standard AES 52 Follows AES 52 standard IEC60958 Follows IEC60958 standard IEC62537 Follows IEC62537 standard User Defined Reserved Metadata is set to an undefined bit pattern Auxiliary Bits Allocation of 4 least significant bits of the 24 audio bits in each sample Not Indicated Audio All 24 bits represent the same audio sample Talkback Bits are part of a 12 bit one third sample rate talkback channel User Defined Bits are not associated with the remaining 20 bits in each sample Reserved Metadata is set to an undefined bit pattern Source Lock Indicates whether source is locked to a master reference clock Locked or Not Indicated Reference Identifies digital
9. Columns 1 4 show the receiver lock status for each of the four 2 channel PCM inputs Column 5 shows the receiver lock status for coded audio Interchannel Errors The sample rate and word width number of active bits are measured for each channel of the surround program and the values are checked for differences between channels Channel metadata is extracted and checked for differences in similar fashion This metadata is also checked for differences with measured values for each channel The differences are displayed in tabular format with columns for sample rate and word width There are rows for differences between measured values and between measured and meta data values Auxiliary 1 0 The Auxiliary I O section displays the status of the signals on the rear panel auxiliary signals connector Auxiliary Inputs These indicate errors on each of the six DC inputs and the Sentinel internal temperature measurement The upper and lower comparison thresholds are set in the DC Inputs amp Tem perature settings panel p 70 Unlike other errors there is no duration setting associated with the DC inputs or tempera ture If one of these exceeds threshold the error will be asserted immediately However these inputs are tested approximately 3 times per second so a transient whose duration is less than 330 ms may be missed Alarm Outputs Any of the errors outlined above may be used to trig ger an Alarm condition as set in the Alarms setti
10. Selects the source of loudness meter control and restart inputs Choices are hardware inputs on the rear panel auxiliary signals connector and buttons on the Loudness meter panel p 34 Measure program Sets the polarity of the rear panel loudness meter control input Restart Sets the polarity of the rear panel loudness meter restart input Loudness errors Error If Short Term Loudness Is Configures short term loudness error detection Above Sets the maximum short term loudness allowed rela tive to the loudness reference level before issuing an error The choices are 2 4 6 and 8 LU For Longer Ihan Sets the duration that the measured loudness must be above the maximum value for an error to be issued The choices are 3 10 30 or 100 seconds Or If Integrated Loudness Is Configures integrated loudness error detection Errors are issued at the completion of an integrated loudness measurement Above Sets the maximum integrated loudness allowed relative to the loudness reference level before issuing a loud ness error The choices are 1 2 3 and 4 LU Or Below Sets the minimum integrated loudness allowed rel ative to the loudness reference level before issuing a loudness error The choices are 1 2 3 and 4 LU Relative Io Selects either the Loudness Target or the Dolby dialnorm setting as the preferred loudness reference level Dialnorm is available only for Dolby coded audio source that specifies dial norm i
11. XX XX 20XX On Off Set UTC Zone 12 Hr 24 Hr XX XX XXXXXXXXX Use Dynamic IP Static IP Setup On Off IP Address Subnet Mask DHCP Assigned Default Gateway View Address Primary DNS View Sub Mask Secondary DNS MAC Address hhhhhh hhhhhh XX XX XX XX Set DST Mode Set IP Address 192 168 000 127 255 255 255 000 Default Gateway 192 168 000 001 Primary DNS 192 168 000 001 Secondary DNS 192 168 000 001 View Gateway View DNS1 View DNS2 Webpage date MainCPU date Boot DinMCUn date D FGPAn date CAT552n version date LCD Contrast Date amp time setup These menu items set the Sentinel s real time clock the date and time formats for the front panel display timezone and daylight savings time The Sentinel does not automatically switch to or from daylight savings As an alternative to setting the date and time manually the Sentinel can also be synchronized to a Network Time Protocol NTP server The NTP service is configured from the user interface using the Date amp Time set Front Panel 19 20 tings panel p 73 This setup panel also lets you set the date and time formats timezone and daylight savings time Network setup These menu items let you allow the Sentinel to determine its TCP IP net work settings automatically using DHCP services or to configure it with static settings Ihere are also menu items to display the network set tings in use and
12. audio reference DARS signal These sig nals do not carry audio and are used solely as a sample rate and time alignment reference Not Indicated Readings page 53 No Signal is not DARS Grade 1 1 ppm accuracy reference re AES 11 Grade 2 50 ppm accuracy reference re AES 11 Reserved Metadata is setto an undefined bit pattern Hidden Data Indicates whether LSB of the audio contains hidden infor mation as specified in AES 55 Present or Not Indicated Configuration v All Channels Sequentially LF Only RF Only CF Only LFE Only LS Only RS Only LB Only RB Only 4 Channel Display 2 Channel Display sets the Channel Display to display data for a particu lar channel or to cycle through all channels sequentially Dolby Metadata panel JT EES The Dolby Metadata panel displays metadata information carried in Format D 32 bit each Dolby Digital or Dolby E data packet Rate 443kbps 48kHz Frame Rate Not E T Format metadata Coding Mode LCRLsRs LFE on Sedati Format Indicates whether stream is PCM Dolby Digital or Dolby E ata ea a encoded If Dolby encoded shows how data is packed into the capes 8 Sa Ala D 32 bit Dolby Digital encoded data in both channels aan 308 D 16 bit Ch 1 Dolby Digital encoded data in only the first left LtRt channel Overmod Prot D 16 bit Ch 2 Dolby Digital encoded data in only the second Sof pet right channel Mix Level 3 D 16 bit Ch 1 amp 2 Tw
13. display the created task it should be listed in the schedule Tasks control panel Select the Schedule tab and set the task schedule to Daily and the Start time to 12 00 AM Then click the Advanced button select Repeat task and set the repeat interval and duration Log Repository 19 80 Scheduled download on Windows 7 systems To perform scheduled downloads on a Windows 7 system you create a bat file containing the download command as described above then create scheduled task that runs the bat file You can place the bat file wherever is convenient The log repository directory is a reasonable choice To create the scheduled task select the Create Task option from the Actions supanel of the Task Scheduler control panel The Task Sched uler is one of the Administration control panels You set the download times by creating a Trigger from the Triggers tab Set the Trigger to begin the task on a daily schedule In the advanced settings section set the task to repeat every hour for the full duration of the day If you set the option to stop the task if it runs longer than 55 minutes it will keep a slow or stalled download from overlapping with the next sched uled download Scheduled download on UNIX systems On UNIX systems you can perform scheduled downloads using cron In general terms you create a shell file containing the download com mand and a crontab file that specifies the task and schedule and then inst
14. displayed for downmix channels When multiple errors are present the highest prior ity error is displayed The possible errors from highest to lowest priority are PARITY digital input only BIPHASE digital input only UNLOCK digital input only VALID digital input only CLIP digital input only REPEAI Digital input samples repeated the same value CLIP True peak exceeds clipping level set in the Levels amp Metering settings panel p 62 OVER Metered level bargraph exceeds overload level set in the Lev els amp Metering settings panel p 62 UNDER Loudness less than threshold set in the Loudness settings panel p 64 HUM Line frequency components above threshold set in the Channel Analysis settings panel p 67 These errors are also reported in the Errors panel p 48 where it is possible to simultaneously view all errors regardless of priority True peak meters The numeric displays above the input and downmix channel bar graphs are true peak meters True peak meters interpolate the ampli tude between samples for a more accurate reading of level Rather than display the peak sample value Irue Peak meters display the amplitude which will result when the signal is converted to analog form The units are in dB relative to the maximum input level With Analog inputs this is either 28 or 22 dBu as set in Levels amp Metering settings panel p 62 With a digital source dBFS units are used No meter b
15. error The choices are 1 3 10 or 30 seconds User Manual Channel Analysis settings panel Xx Channel Analysis Hum Error If Stable Tones At Exceed With Tolerance For Longer Than 15 sec LFE Channel Error If Bandwidth Exceeds For Longer Than EEZ Front and Surround or Back Swapped If Front Is Softer For Longer Than CF and LFE Swapped If LFE Bandwidth gt CF Bandwidth For Longer Than EEZ Digital Input Has No Signal If Values Repeat geese um 16k samples The Channel Analysis settings panel sets the thresholds used for hum detection channel swap detection and LFE bandwidth checking It controls all channel related measurements that are not level or loudness related Hum Error if Stable Tones at Sets the frequencies used for hum detection measure ments Measurements are made at the fundamental frequency and two harmonics Exceed Sets the level at which a HUM error will be generated This may be set in 5 dB increments from 50 to 85 dBFS With Tolerance Sets the maximum level variation a signal may have before it is considered program and not hum The choices are 2 and 4 dB For Longer Ihan Sets the duration that a signal must exceed the speci fied limits to generate a HUM error The choices are 4 8 15 or 30 seconds LFE Channel Error If Bandwidth Exceeds Sets the LFE bandwidth above which an LFE BW error will be generated The choices range from 80 to 250 Hz For Longer Ihan Se
16. levels of the surround and downmix channels m Loudness to ITU R BS 1770 LKFS m Surround balance m Downmix Compatibility directly answering will my program change when reproduced in stereo or mono ELFE bandwidth amp phase compatibility m Spectrum with one octave resolution m Over level conditions E Dead channel detection m Hum detection on fundamental plus 2 harmonics For digital inouts the Sentinel extracts metadata and compares it User Manual m to interface signal parameters m to audio signal characteristics E across surround channels Eto metadata carried within coded audio The Sentinel also provides other measurement functions including E Six DC inputs for monitoring external parameters line voltage secu rity sensors transmitter power etc m Internal clock calendar for time amp date reference m LTC for correlating results with program m Internal temperature for monitoring equipment rack conditions The measured results may generate user defined alarms local remote and email and are accessible through local networks or over the Inter net using standard browsers The displays include intuitive bargraph and text presentations The previous 25 hours of measurement data are available for review or download to long term storage Overview 3 Installation Getting organized 6 Mounting and operating environment 7 Power connection and grounding 7 Network connection 8 User interface configurati
17. position cursor which is always present and zero or more pairs of segment bounds cursors Current Position cursor Displays the current play position When the cursor is positioned at the Current time the display shows live readings and the cursor position advances automatically Dragging the cursor away from current time changes to paused state freezing the motion of the meter and timeline displays Dragging when replaying saved readings changes the replay position and replay continues when the cursor is released Readings page 41 49 The readings at the current position are displayed on the meters and secondary readings panels When displaying live data these are cur rent readings as they are received from the Sentinel at other positions in the timeline saved readings are displayed When dragging the cur rent position the readings update as the cursor moves The current position cursor always stays within the visible portion of the timeline display When repositioning of the display would move the cursor out of view it sticks at the end of the displayed range that is it moves to the position within the display area that is closest to its prior position This can have the side effect of pausing the display To resume showing live readings you can press the Skip Forward button to advance the position to the current time Segment bounds cursor pairs Segment bound cursor pairs indicate the bounds of programming seg ment
18. the Maximum Ana log In For digital inputs settings are 1 dBFS increments below User Manual O dBFS This setting has no effect on a digital input Clip level indication always O dBFS Overload Ref Sets the reference source for the Overload indication User Selected Allows you to set the Overload Level The two proprietary meter types always use this setting Meter Default Follows the Meter Type setting Overload Level Any level above this value for a channel produces a Overload error and an indication on the channel s bargraph meter Only applies if Overload Ref above is User Supplied For analog inputs settings are 1 dBu increments starting 2 dBu below the Maximum Analog In For digital inputs settings are 1 dBFS increments below 2 dBFS This setting provides an indicator that can be calibrated to your system maximum level For example a modulation index or an A D converter s digital full scale value For Longer Ihan Sets the duration an Overload condition must be present before it represents an error Settings range from 1 to 30 seconds Alignment Ref Sets the reference source for the Alignment indication User Selected Allows you to set the Overload Level The two proprietary meter types always use this setting Meter Default Follows the Meter Type setting Metadata User digital only Determines the level from meta data in the digital input signal if present if not uses the Overload Level you set Metadata
19. the Sentinel s Ethernet MAC address By default the Sentinel will use DHCP for network settings When entering an IP address use the left right buttons to select an octet and use the knob to scroll through values Password setup The web access password must be entered from the user interface in order to change Sentinel configuration settings Up to fifteen characters can be entered The default password is audio Use the knob to scroll through characters Entering the _ character truncates the password string without having to set subsequent charac ters to blanks Device name setup The device name is used in alarm email messages to identify the Sen tinel from which the alarm originated lt may also be set from the user interface using the Alarm Actions set tings panel p 72 Use the knob to scroll through characters Entering the _ character truncates the password string without having to set subsequent charac ters to blanks Firmware revision display Displays revision dates for the field upgradeable ROMs in the Sentinel Dates are in mm dd yy format month day year User Manual There are separate listings for the two digital input module ROM slots M1 and M2 Only occupied slots are listed LCD contrast setup Adjusts the LCD contrast on the front panel Use the knob to scroll through values Front Panel 21 22 Readings page Meters panel 25 Bargraph meters 26 Balance display 30 Spectrum a
20. type at bot tom 2 Irue peak Indicator bar and numeric value 3 Level bar 4 Channel 5 Bandwidth bar The Meters panel includes two groups of vertical bargraphs one for the input channels on the left and one for a set of downmixes created by the Sentinel on the right Both sets of bargraphs include numeric dis plays which show the true peak level of that channel The input channel bargraphs also include indicators which show the approximate signal bandwidth for each channel Input channels The Sentinel accepts up to 8 input channels Six seven or all eight input channels may be grouped into a surround program The remain ing channels if any are treated as a Second program called the Ancil lary Program The surround format as set in the Inout amp Sources settings panel p 61 determines the channels for which bar meters are displayed The configuration pulldown menu for the Meters panel allows you to change the Channel Order of the bar meters Downmix channels The internal downmix channels are created from the input signals as Lo sums LF CF LS and LB or CB in 6 1 mode if present Ro sums RF CF RS and RB or CB in 6 1 mode if present User Manual M Sums Lo and Ro The gain coefficients applied to the center front surround and back channels when summing into the Lo and Ro downmix are selectable They are set in the Downmix Compatibility settings panel p 68 These downmix gains are al
21. which the displayed measurements were taken See the Readings Timeline panel p 40 for more details Loudness meter panel Left meter bar displays Loudness Q Right meter bar displays loudness measurements integrated measurements continuously updated from computed across an the audio signal extended time segment 1 Short Term loudness 2 Loudness reference 1 Integrated loudness 2 Maximum momentary level loudness 30 3 Momentary loudness 3 Loudness range 4 Loudness integration aoe indicator ane 5 Maximum true peak Sans 6 Integration restart but ML SL IL Max Peak ton Range 8j 7 Program commercial segment select button 34 User Manual The loudness meter panel is organized around a pair of meter bars continuously updated measurements continuous readings on the left those computed across a specific time segment of the audio signal integrated readings on the right The measurement gating for the integrated readings may be controlled by hardware signals applied to the rear panel auxiliary signals con nector or by software control through the buttons at the bottom of the loudness meter panel The selection of hardware or software control is made in the Loudness settings panel p 64 Continuous loudness measurements The continuous measurements are the Momentary Loudness ML and Short Term Loudness SL The momentary loudness is displayed as a bar and updated 10 times per second
22. 5 1 2 ancillary chan nels A1 and A2 replace LB and RB for 6 141 CB replaces LB and ancillary channel A1 replaces RB Peak Hold Time sets the time for which the graphical peak level indica tors on the bargraphs display a recent maximum It does not the affect the True Peak meter numeric displays The hold time may be set to 1 3 10 or 30 seconds Readings page 29 30 Balance display The balance display is Balance Balance Balance a plan view of the listen ing space with listener at center surrounded by loudspeakers the LFE channel is an additional loudspeaker to the right Ancillary channels are not included left 7 1 format middle 6 1 or 6 1 2 right 5 1 or 5 1 2 The brightness of the loudspeaker icons on the balance display changes in proportion to the relative loudness of the audio signals on their respective channels with the loudest channel brightest This creates an intuitive view of the sound space balance For example a phantom monaural sound appears as equal brightness in both the left and right front speaker icons The loudness computations used to drive the balance display are shared with the program loudness measurement Consequently the surround channel balance display is frequency weighted according to the same ITU standard However the LFE channel icon is driven from an unweighted loudness computation with its gain adjusted for accu rate relative loudness assessment As per international
23. LN 24 Hour 8 The Date amp Time settings panel configures the network time service and time zone settings The Sentinel has an internal real time clock used to accurately record the timing of measurements To provide an unambiguous reference times are recorded in Coordinated Universal Time UTC and the Sen tinel can synchronize the clock to a Network Time Protocol server UTC times are converted to local time for display using configured timezone settings Server DNS name of the NTP server that will supply time information to the Sentinel An IPv4 address is also allowed An empty name disables NTP clock synchronization Limited to 34 characters Timezone Local timezone for the Sentinel DST Checked if Daylight Savings Time is in effect for the local time zone The Sentinel does not automatically switch to or from day light savings Settings page 73 74 Log Repository Log repository setup in the user interface 77 Purging and archiving repository data 78 Scheduled downloading of log data 78 15 16 The Sentinel logs internally up to 25 hours of readings data The data includes all audio characteristics sampled by the Sentinel and all mea surements Io save space logged data is saved at approximately 1 4 second intervals a 4 to 1 merging of the original readings data To access and preserve this data you need to download it from the Sentinel to a storage repository Once data is in the repository you can revie
24. Meter digital only Determines the level from meta data in the digital input signal if present if not follows the Meter Type setting above Alignment Level Any level above this value for a channel produces an Alignment error and an indication on the channel s bargraph meter Only applies if Alignment Ref above is User Supplied or Metadata User For analog inputs settings are 2 dBu incre ments starting 12 dBu below the Maximum Analog In For dig ital inputs settings are 2 dBFS increments below 12 dBFS A typical setting for an analog Broadcast or Pro audio system is 4 dBu For Consumer equipment with the Max Analog In set to 22 dBu the Alignment Level is typically at 10 dBV Settings page 63 8 dBu Common digital settings are 20 dBFS SMPTE RP200 2002 or 18 dBFS EBU R68 2000 Loudness Settings panel Loudness Measurement Beret me ae 28 LKFS Petey teri tem BS1770 Srna Prog Comm om SW only Measure Program When Low Kalu When Low Error if Short Term Loudness Is Above For Longer Than PS sec Or if integrated Loudness Is Above L E v eae 4 LU Relative To Under Level Error If Nadia 61 dB For Longer Than f3 sec Mana IM 55 dB 4 For Longer Than Peete e em 61 dB For Longer Than 30 sec PAEA GA 70 dB For Longer Than f3 sec 64 The Loudness settings panel controls the loudness measurement func tions of
25. Ne mena mna no duration setting if a threshold is crossed an error is immediately DC In 2 Is Above asserted Sd 0 00 V 2 55 V 4 j DC In 3 Is Above 2 55 V Report An Error if eee 0 00V s saa DC In Is Above Sets the maximum DC value allowed on that input DC in 5 is Above before issuing an error The value may be set between 0 30V CL 0 00 V and 2 55V in 0 15V steps Set this to 2 55V to disable this com a Guan parison Near Riis Or Below Sets the minimum DC value allowed on that input before issu Or Below EK ing an error The value may be set between 0 0V and 2 25V in 0 15V steps Set this to 0 OV to disable this comparison Temperature Is Above Sets the maximum temperature allowed before issuing an error The value may be set between 32 C and 62 C in 2 steps Or Below Sets the minimum temperature allowed before issuing an error The value may be set between 4 C and 19 C in 1 steps see Auxiliary signals connection p 14 for details about connecting these inputs Error reporting for each auxiliary input is enabled in the Alarms settings panel p 71 70 User Manual Alarms settings panel Alarms Alarm Signal Errors Under Level Over Level Clipping Hum Program Loudness integrated Loudness Downmix Compatibility Channel Swap LFE Bandwidth Digital interface Errors Input Connections Group Consistency Input Metadata Group Metadata Coded Audio Errors Coded A
26. all the task using the crontab utility The following notes provide additional detail There is considerable variability among UNIX systems so youll need to consult local documentation in addition to these notes In the crontab file tasks are specified by lines that have a sequence of tab separated fields minute 0 59 hour 0 23 day of month 1 31 month 1 12 or names day of week 0 7 or names command name User Manual An asterisk indicating any may be specified for any of the time fields For example 30 0 23 Sentinel Logs download sh You install the crontab task using crontab crontab tfile Log Repository 81 82 Connections and cabling AES digital audio connections 84 Analog audio connections 85 Auxiliary connections 86 Breakout adapter 87 83 The Sentinel s audio and auxiliary signals connectors are designed to work with standard cables for typical configurations The following specifications and guidance are provided for those cases where cus tom cabling is necessary AES digital audio connections AES connections appear on an HD15 connector 84 1 Channels 1 2 high 6 Channels 1 2 low 11 Ground 2 Channels 3 4 high 7 Channels 3 4 low 12 Ground 3 Channels 5 6 high 8 Channels 5 6 low 13 Channels 7 8 high 4 Ground 9 Balanced Unbalanced 14 Output in out only 5 Ground 10 Channels 7 8 low 15 Ground The AES input and input output connect
27. allistic is applied User Manual True peak readings which reach the user defined clip level will produce a CLIP indication on the bar meter of the corresponding input channel The configuration pulldown menu for the Meters panel allows you to set the Peak Hold Time from 1 to 30 seconds Bandwidth indicators The input channel bargraphs have a graphic below the channel label which gives an approximate indication of signal bandwidth This allows a guick assessment of which channels are dominated by dialog and which have extensive music or effects content The left edge of the graphic is controlled by the low freguency signal content The right edge of the graphic is dependent on the high freguency signal content The color also changes with the low and high freguency energy giving two eguivalent methods of interpreting the information Configuration v LF RF CF LFE LS RS LB RB LF CF RF LS RS LB RB LFE w1second A 4 Channel Order P Peak Hold Time P 4 bs LB LS LF CF RF RS RB LFE 3 seconds CF LF RF LS RS LFE LB RB 10 seconds LF LS CF RS RF LFE LB RB 30seconds LF CF RF LFE LS RS LB RB J i si Channel Order selects the order of channels in the multichannel meter display The Surround Format setting set in the Input amp Sources set tings panel p 61 constrains which channels are actually dis played If the Surround Format is 5 1 LB and RB are not shown for 6 1 LB is replaced by CB and RB is not shown for
28. any product with heavy software content the Sentinel on occa sion requires Updates This may be to add or enhance features or to correct problems The Sentinel is designed to allow firmware updates over the network from a web browser The process is as follows Obtain the updates The latest updates can be obtained from the Qualis Audio web site www qualisaudio com The site also provides an archive of older firmware revisions Updates are packaged as zip archives containing documentation and the firmware images required to update the Sentinel Unzip the archive verify its contents Use the unzip command or whatever command you normally use for unpacking Zip archives There are five separate field upgradeable ROMs in the Sentinel SentinelDSP base SentinelCPU base SentinelWeb base SentinelDINMCU digital input module AES SDI only SentinelFPGA digital input module AES SDI only Images are identified by date Make sure you have firmware images for all the ROMs you re planning to update The digital input module firmware components are not used on units that are analog only You can check installed firmware versions from your Sentinel s front panel Firmware revision display p 20 Dates in the firmware image filenames are in yyyymmdd format year month day this differs from the front panel firmware display which is mm dd yy format month day year Load the Firmware Update page in your browser Navigate to t
29. atus bar p 34 Log Repository TT Purging and archiving repository data Each daily log file in the repository holds about 13 MB of data a month of data is about 400 MB The strategy for purging or archiving these files is your choice the Sentinel software doesn t delete log files and it provides access to whatever files are in the repository Scheduled downloading of log data 78 In a production environment you will want to schedule downloading of data to the log repository rather than relying on the browser to update the repository The download service can be invoked independently without the browser being active This allows you to perform the download in scripts or include it in scheduled batch operations It provides reliable archiving of continuous log data in a production environment This separate download operation uses the same Java applet as is used to provide access in the Sentinel web interface However in this case it is invoked using Java Web Start JavaWS JavaWS is a stan dard part of the Java Runtime Environment and it handles the trans fer of the application to your computer for execution and caches it for future use Invoking the download operation The command for invoking the repository download operation is javaws wait Xnosplash http address logrepository nlp open directory path serial number Where address is the IP address or DNS name of the Sentinel direc tory path is the f
30. ayed as a final entry in the segment table The segment category setting for a defined segment specifies how the segment contributes to these summary measurements Ea Add to summary amp Exclude from surrounding segment E Ignore User Manual Signal Histogram panel 1 Y axis Units are percent Signal Histogram ages 06 Feb 11 13 47 20 2 X axis Units are full 06 Feb 11 13 48 20 scale loudness 06 Feb 11 14 33 34 8 06 Feb 1411 14 34 34 3 Histogram traces z 4 Segment key The Signal Histogram panel summarizes loudness measurements for programming segments selected using the Readings Timeline panel p 40 The display updates as you add or remove segments from the timeline or adjust their limits Bars of the histogram represent the proportion of readings in 1 dB inter vals arranged along the X axis of the histogram from lowest measured loudness to highest The height of a bar is the percentage of the read ings in its interval Readings page 47 Errors panel Errors Ola LF RF CF LFE LS RS L R M LFE F S F B CF LFE Swap 1 234 59 Digital In RATE WIDTH CODING Measured Metadata 1 2 3 4 5 6 TEMP Aux In Pt ar Alarm Out 48 The Errors panel provides a concise view of all potential errors mea sured by the Sentinel Unlike the warnings overlaid on the bargraphs there is no prioritization applied to the error summary These are the icons used to indicate error conditions
31. ays the most recent readings the right end of the display tracks the Current time and older readings move off the left end When brows ing or replaying logged readings the timeline display can be moved through the range of logged data 40 User Manual Signal traces The timeline displays your choice of Program Loudness and Maximum Downmix measurement traces The loudness trace displays short term loudness The downmix trace displays the maximum of left and right downmix values within the frequency range configured in the Downmix Compatibility settings panel p 68 A programming segment trace appears below these traces It shows the breakdown of the readings into programming segments for inte grated loudness measurements The lower half of the trace indicates program segment measurements it s shadowed wherever the mea surement was paused The upper half indicates commercial segments Breaks in the traces mark the positions where measurements were reset A summary trace of error and alarms is also always visible as the last trace It shows a yellow marker at each reading that records an error If the error resulted in an alarm a red marker appears above the yellow Cursors 1 Current position cursor 2 Left bound cursor Appearance changes 3 Right bound cursor to indicate play paused 4 Right position flag state paused shown appears when cursor is dragged Otay 11 00 32 30 Trace cursors consist of a single current
32. cations The alarm outputs are rated to switch up to 24V at a maximum current of 50 mA each 200mA total A current limited 3 3V supply is provided on pin 13 of the connector This may be used to power pull up resistors for the DC inputs useful for sensing contact closures or for the open collector outputs useful when interfacing to logic level inputs The loudness meter control inouts have internal pull up resistors and do not need an external pull up to function User Manual Breakout adapter 1 DB25 connector 2 Pull up resistor networks 3 Screw terminals pins 14 25 1 12 on back 4 Strain relief holes The Qualis Audio screw terminal breakout adapter avoids the soldering normally involved with making DB25 connections It routes all pins to screw terminals and provides a pair of pull up resister networks It is the most convenient way to make connections to the auxiliary sig nals connector It also provides a convenient way of adapting the ana log audio connector to plenum cable or other fixed installation applica tions The socketed resistor networks may be used to pull any or all of the pins to 3 3V If some pull ups are desired and others are not the leads of the unwanted ones may be clipped and the network reinserted into the socket The adapter shell includes a place to note the presence or absence of a resistor network Connections and cabling 87 88 8 Firmware updates 89 90 As with
33. che If you ve updated the SentinelWeb firmware you ll need to quit and restart your browser and clear the browser s cache when you restart it Otherwise the browser will use stale copies of the Sentinel web pages from its cache the resulting errors can be quite confusing For Firefox go to the Tools menu select Clear Recent History and make sure the Time range to clear is set to Everything and Cache is checked Other browsers have similar options For Chrome use the Clear Brows ing Data in the Tools menu For Internet Explorer use the Delete Browsing History in the Tools menu For Safari use Empty Cache in the Safari menu User Manual Specifications Analysis Surround Format 5 1 5 142 6 1 6 141 7 1 Metering VU Nordic PPM BBC PPM EBU PPM DIN PPM proprietary 85 dB Standards range meters 12 updates second Peak Amplitude True peak responding with 4x interpolation 340 ms update rate Downmix Computes energy lost during downmixing to both stereo and mono Compatibility formats Analysis performed in 1 30th octave resolution displays L R M results in octave bands 680 ms update rate Channel Balance Channel loudness relative to the loudest channel 340 ms update rate LFE Analysis Measures LFE BW LFE downmix loss Channel Detects front surround reversal by level comparison detects CF LFE Interchange interchange by bandwidth comparison spectral Analysis Measures program energy in octave bands 680
34. created retrospectively through the user interface The segment table displays all defined segments and a selection of measured segments centered on the current timeline position Segment table Duration LTC Loudness Peak 00 01 00 09 13 53 00 51 57 09 17 46 00 01 00 10 00 13 00 00 25 10 08 52 00 03 23 10 09 51 Begin End 06 Feb 11 13 47 20 06 Feb 11 13 48 20 06 Feb 11 13 51 13 06 Feb 11 14 43 10 06 Feb 11 14 33 34 06 Feb 11 14 34 34 06 Feb 11 14 42 11 06 Feb 11 14 42 36 06 Feb 11 14 43 11 06 Feb 11 14 46 35 Range 1 Selected defined seg ment Clicking arrow positions timeline to seg ment 2 Summary Combined integrated measure ments for defined seg ments 3 Segment add remove buttons Define new seg ment or delete selected segment 4 Segment status Calcula tion status for measured segment index number for defined segments 5 Segment category Pro gram commercial for measured segment Include exclude ignore for defined segment 6 Begin End times Editable for defined seg ment 7 Duration Editable for defined segment 8 Begin LTC 9 Integrated measure ments Loudness max imum true peak loud ness range segments specified intervals of time within the Sentinel s readings his tory are of two kinds measured segments and defined segments The segment table displays both types of segments in chronological order Measured segments Measured segments are created in
35. d the compatibility analysis Downmix Parameters LFE Gain Sets the gain applied to the LFE signal when performing downmix compatibility measurements It does not affect the LFE meters which always reflect the actual electrical level of the LFE signal not its final reproduction level The choices are O and 10 cB Downmix CF at Sets the gain applied to the center front signal when downmixing to stereo The choices are 3 1 5 0 1 5 3 4 5 6 dB and none Downmix Surrounds at Sets the gain applied to the surround and back channels when downmixing to stereo The choices are 3 1 5 0 1 5 3 4 5 6 dB and none Use Downmix Gains Selects between the specified downmix gains and the values specified in the metadata If the metadata is missing or if the values are not indicated the software will revert to the values set above User Manual Downmixed Signals In Error If Within Each Octave Controls the way 1 30th octave bins are combined and compared to the level threshold Peak uses the worst case signal loss for any bin Average uses the average loss within each octave Level Changes By Sets the error threshold for changes in the program when downmixed If the level in any included octave band is reduced by this amount or more an error will be generated The value may be set between 4 and 15 dB in 1 GB steps At or Above Sets the lowest octave included in the compatibility anal ysis Downmix compatibi
36. d when the short term loudness differs from the loudness target by a specified tol erance and duration as set in the Loudness settings panel p 64 The integrated loudness error is asserted when the integrated loudness differs from the loudness target by a tolerance speci fied in the Loudness settings panel p 64 Downmix Errors are asserted when any of the downmix compatibil ity measurements within a specified range of octave bands exceed a threshhold and duration as set in the Downmix Com patibility settings panel p 68 L Cancellations on Lo Left channel exceed the limits R Cancellations on Ro Right channel exceed the limits M Cancellations in Monaural format exceed the limits LFE Cancellations on LFE channel exceed the limits Swap Errors are asserted when there is a suspected interchange of channels persisting longer than a duration as set in the Chan nel Analysis settings panel p 67 CF LFE Probable swap of CF center front and LFE channels Asserted if the LFE bandwidth exceeds the CF band width F S Probable swap of front LF and RF and surround chan nels LS and RS Asserted if the surround loudness exceeds the front F B Probable swap of front LF and RF and back channels LB and RB in 7 1 mode Asserted if the back loud ness exceeds the front Readings page 49 Digital Errors The Digital Errors section displays errors involving the digital input channels and digital metadata Digital In
37. dio connections p 84 Input to channel assignment You assign digital input connections to internal Sentinel channels through the user interface Select the channel assignments on the Input amp Sources settings panel p 61 with the Use Input From field When monitoring PCM inputs in AES 3 format any channel from the AES In Out connector can be assigned to any of the internal channels When monitoring coded audio streams any channel from the decoder may be routed to any internal channel The description of the Dolby Metadata panel p 54 lists channel orders for common channel configurations SDI digital audio connection SDI SD or HD input stream The SDI audio module provides three jacks There are two BNC con nectors for SDI signals SDI In accepts an SD or HD input and SDI Thru outputs a reclocked version of this input AES In Out an HD15 connector accepts discrete PCM input channels SDI In and Thru connections 2 e s z M n W lt The SDI Input accepts both SD and HD signals up to 2 97 GB The receiver automatically locks to the applied input and creates a reclocked version which drives the output Two groups are extracted from the stream and the resulting 8 channels are available for monitor ing as PCM signals Installation 11 The SDI input and reclocked output both use high performance BNC connectors Particularly when monitoring HD SDI signals it is essential to use high guality 75 0 BNC cab
38. e present in the bitstream 1 1 dual mono Readings page 55 56 mono CF stereo LF RF LCR LE CE RF LRS LF RF Surround LCRS LF CF RF Surround LRLsRs LF RF LS RS LCRLsRs LF CF RF LS RS all standard surround channels LFE Indicates whether low bandwidth channel devoted to low fre quency effects is present within the bitstream Errors Number of received coded audio packets containing errors The count rolls over at 255 Normalization Dialhorm Indicates the average loudness of the audio stream This is a nominal value set when the program is encoded and it may not correspond to the actual loudness of the stream Downmix metadata The gain coefficients applied to the surround channels when downmix ing to a 2 channel or mono format are displayed as a table with two columns CF for the center front channel LsRs for the surround chan nels Rows indicate each coefficient Standard Present in all Dolby packets used by decoders which do not support Dolby Digital Plus and by all decoders when process ing Dolby Digital data Used only when downmixing to LoRo format fixed values of 3 dB are used when downmixing to LtRt format LoRo Present only in Dolby Digital Plus packets used by Dolby Digi tal Plus decoders when downmixing to LoRo format LtRt Present only in Dolby Digital Plus packets used by Dolby Digi tal Plus decoders when downmixing to LtRt format The LoRo or LtRt row may include a pref indicator to d
39. e time is occupied by a commercial or other interstitial content The loudness of these interleaved segments is just as important possibly more so as the program However the way the loudness measure ments are defined it is not possible to measure the individual pieces of a program separately the measurement must be paused and measure ment must resume when the break is over Therefore to measure both the program and the commercial loudness independently requires two loudness meters one for the program and one for the commercials The control lines for these two meters must be interconnected so that they operate synchronously Dual Stream loudness measurement is Qualis Audio s patent pend ing solution to this problem The Sentinel is designed to handle a pro gram stream with interleaved commercial segments When the instru ment is told that the program being monitored has gone to commercial it pauses the program measurement However it continues measuring and allocates the measured energy to a separate results buffer for the commercial When the instrument receives a reset command it finalizes the readings and begins measuring another commercial If instead it is told that the stream has returned to the original program it finalizes the commercial loudness reading and resumes measuring the program exactly as a conventional meter coming out of pause would do When the program is complete assertion of the reset command will finalize the
40. elative display shows measurements in loudness units LU relative to the loudness reference Result Hold Time sets the time for which the panel displays the results of completed integrated loudness calculations The hold time may be set to 1 3 10 or 30 seconds The integrated loudness loudness range maximum momentary loud ness and the maximum true peak amplitude are all measured during a defined time period with definite beginning and end events Although the measurements are updated in real time they are not final until the end time is reached In a real time measurement application another measurement follows immediately after a completed measurement The hold time gives an operator a chance to read the values before they disappear and a new measurement begins User Manual Hardware loudness gating control In the Dual Stream measurement mode there are still just two control signals one to select the measurement context called P C and one to reset the meter called RESET The same control line is used for RUN PAUSE and for P C its function changes with the mode The polarity of each control line is defined on the Loudness settings panel p 64 This is also where the selection of conventional or Dual Stream mode is made along with selection of hardware or soft ware control In Dual Stream mode there is interaction between the P C control line and the RESET control line A Reset event finalizes an Integrated Loud ness
41. end upon or attempt to use the enclosure as a safety ground This product is not intended to be serviced by the user Do not attempt service unless you are a qualified technician operating under the direc tion of the factory If qualified and you are authorized to service the unit please keep the following in mind at all times This product is designed to operate from an external low voltage power supply Although this means there are no mains voltage hazards in normal operation it is possible for the signal connections to present a safety hazard if they are connected to voltage sources which present a safety hazard Consequently All signal input and output connec tions should be removed before opening the cover Do not make any modifications to this product Do not replace any components with brands types models or part numbers other than those originally used when manufactured Doing so may create a safety hazard and will void the warranty 97 98 Index A alarm actions settings panel 72 alarms settings panel 71 audio connection AES digital 9 84 analog 12 85 SDI digital 11 auxiliary signals connection 14 86 B back panel 6 balance display 30 bandwidth indicators 29 bargraph meters 26 breakout adapter 87 browser compatibility 8 cookies 24 C cable types see audio connection channel analysis settings panel 67 clock real time 15 19 34 T3 D date see clock real time
42. esignate the rec ommended downmix method This indication is present only for Dolby Digital Plus packets and does not appear if the LoRo and LtRt coeffi cients are not present or if the metadata does not specify a preference User Manual Filters Pre emphasis Attenuation Overmod Protect Indicates whether encoder used pre emphasis when calculating compression values used in RF mode HPF Indicates whether encoder applied a DC blocking filter Surround Level Surround channel attenuation O or 3 dB Phase Phase shift to apply to surround channels when converting to Dolby Digital O or 90 Dolby E only Bandwidth Limit Main Indicates whether to apply lowpass filter to main input channels when converting to Dolby Digital Dolby E only Bandwidth Limit LFE Indicates whether to apply lowpass filter to LFE channel when converting to Dolby Digital Dolby E only Other Metadata Mix Level Peak sound pressure level used in program creation Room Relative size of mixing environment and equalization used in program creation Large Large room with cinema X curve egualization Small Small room with flat equalization Copyright Indicates whether creator is asserting copyright on bitstream content Original Indicates whether bitstream is original master version not a copy Surround Encoding Bitstream contains Dolby Surround Lt Rt program that requires Pro Logic decoding yes no not indicated EX Encoding Bitstream contains Surround EX p
43. f Above ega User Selected erie heim 6 dBFS For Longer Than ESAI PGA User Selected PN unari 20 dBFS 62 The Levels amp Metering panel selects the metering ballistics and signal levels used in metering and error detection Meter Setting Meter Type Selects the ballistics used for the bargraphs and for detec tion of OVERs in the program Also sets the displayed meter scale and unit All commonly used metering standards are pro vided along with two proprietary meters Fast Decay Os attack 0 1 s decay Slow Decay Os attack 1 5 s decay The following meter types reference the Alignment Level setting below VU lt 300 ms attack 300 ms decay IEC 60268 17 O VU at the Alignment Level IEC I Nordic PPM 5 ms attack 1 5 s decay DIN 45406 IEC Ila BBC PPM Oto 7 numeric scale otherwise the same as IEC IIb IEC llb EBU PPM 10 ms attack 2 8 s decay IEC 268 10 DIN German PPM 1 ms attack 1 5 s decay Levels Max Analog In Sets the gain of the analog input thereby setting the maximum input signal level Using the lowest possible value maximizes the signal to noise ratio 28 dBu Recommended for professional equipment 22 dBu Recommended for consumer or other equipment with out the ability to exceed 22 dBu output Clip Level Any level above this value for a channel produces a Clip error and an indication on the channel s bargraph meter For analog inputs settings are 1 dBu increments below
44. he Firmware Update page User Manual http address fwupdate Replace the address with actual address of the Sentinel you re updat Ing The Sentinel will display a pop up menu that prompts you for a User Name and Password Authentication Reguired A username and password are being reguested by http 192 168 16 102 The site says Protected User Name Password Cancel OK Leave the User Name blank the default password is audio Once you are authenticated the Sentinel will display the Firmware Update page Select the firmware image to update Sentinel Firmware Update Browse Update Use the Browse button to select the firmware image file then press the Update button to upload the file to the Sentinel The Sentinel will display a message indicating the Firmware Update is in progress Wait for the Sentinel to update the ROM and restart When the update completes the Sentinel will restart and the Sentinel Firmware Update page will again appear If you are updating multiple firmware images select and update the next image Normally you will repeat the update process for each image file provided in the zip archive Firmware updates 91 92 If the update fails due to a corrupted firmware image the Sentinel will display a Firmware Update File Invalid message If you see this mes sage you ll need to get a new copy of the image file Restart your browser and clear its ca
45. he Sentinel measures the program channels to approximately 1 30th octave resolution It also performs downmixing and measures the downmix channels in the identical manner The frequency domain power measurements of the individual channels are summed and com pared to the frequency domain power of the downmix channels They should be equal However if there are cancellations in the stereo or mono downmix signals their power will be reduced This reduction is exactly the amount of signal which will be missing from the program User Manual heard by stereo or mono listeners The result is a direct assessment of the change in the program experienced by these listeners The internal Downmix channels are created from the input signals as follows Lo Sums LF CF LS and LB or CB in 6 1 mode if present Ro sums RF CF RS and RB or CB in 6 1 mode if present M summed from Lo and Ro The Lo and Ro downmix attenuation values for center Surround and back surround are set in the Downmix Compatibility settings panel p 68 Freguency range filters The freguency at which cancellations occur is important when assess ing the severity of a compatibility problem Cancellations in the voice band are generally of the highest concern because of their poten tial effect on intelligibility Downmix problems at low or high freguen cies though potentially of concern cause changes in effects or ambi ence and are generally less problematic The hori
46. ic range in installa tions with lower operating levels The range of settings available for Clip Level Overload Level and Alignment Level are all affected by the Max Analog In setting Input to channel assignment You assign analog input connections to internal Sentinel channels through the user interface Select the channel assignments on the Input amp Sources settings panel p 61 with the Use Input From field Any input connection can be assigned to any of the internal channels Auxiliary signals connection The auxiliary signals connection combines the Linear Time Code LTC input loudness meter controls alarm outputs and DC inputs There are two pairs of loudness meter controls one for the Surround loudness meter and a second for the Ancillary loudness meter One input of each pair switches between active measurement and the paused state or between measuring program and measuring commer cial The other input completes the current measurement and begins a new measurement The four alarm outputs are asserted when the corresponding alarms occur The six DC inputs may be used to measure DC voltages and by appro priate setting of the input comparison thresholds they may be used to monitor low speed logic signals specifications for fabricating custom cabling are provided in Auxiliary connections p 86 User Manual DC input threshholds configuration Error threshholds can be set for the DC inputs in the DC Inputs a
47. les AES In Out connection The AES in out connector on the SDI audio module functions identically to the AES in out connector on the AES audio module Input to channel assignment You assign digital input connections to internal Sentinel channels through the user interface Select the channel assignments on the Input amp Sources settings panel p 61 with the Use Input From field When monitoring PCM inputs in SDI format two groups of the available 4 may be monitored These 8 channels can be assigned to any of the internal channels When monitoring coded audio streams any channel from the decoder may be routed to any internal channel The description of the Dolby Metadata panel p 54 lists channel orders for common channel configurations Analog audio connection Analog input signals compatible with TASCAM pinout 12 5 a z ke Oo l q z lt The analog input accepts up to 8 channels of balanced or unbalanced analog audio The input impedance is 1 MQ allowing minimal loading in bridged applications and making the input CMRR immune to typ User Manual ical source impedance imbalance A common mode filter is used to improve RF immunity The high input impedance of the Sentinel makes unconnected inputs sensitive to noise and AC fields These can cause low level bargraph activity Unused inputs should be shorted or resistively terminated with a low value Connecting balanced inputs Com
48. lity problems are assessed in this octave and above The choices are 63 125 250 and 500 Hz since these are octave centers 500 Hz will include frequencies beginning at approximately 350 Hz 250 Hz will include compo nents as low as 1 5 Hz etc Up To and Including Sets the highest octave included in the compati bility analysis Downmix compatibility problems are assessed in this octave and below The choices are 2 4 8 and 16 kHz Since these are octave centers the 2 kHz selection includes frequencies through approximately 2 8 kHz the 4 kHz selection will extend to approximately 5 6 kHz etc For Longer Ihan Sets the duration that a signal must exceed the speci fied level to generate a downmix error The choices are 1 3 10 or 30 seconds LFE Phasing Error If Level Changes By Sets the error threshold for changes in the low fre quency program content when the LFE is included in the down mix If the level between 20 Hz and 200 Hz is reduced by this amount or more an error will be generated The value may be set between 4 and 15 dB in 1 dB steps For Longer Ihan Sets the duration that LFE phasing problems must exist to generate an error The choices are 1 3 10 or 30 seconds Settings page 69 DC Inputs amp Temperature settings panel Sa UNI mon The DC Inputs amp Temperature settings panel sets the limit thresholds Report an Error If for the 6 DC inputs and the internal temperature sensor These have Nk IM 2 55 V
49. log input units and under 10 Watts for digital inout units No special cooling is required for operation within the specified temperature range However the instrument should always be used Indoors in a non con densing environment Power connection and grounding The Sentinel is supplied with a universal input voltage external power supply It is designed to plug into any standard outlet strip and occupy only one space This avoids the fit problems typically encountered when attempting to use multiple external supplies in one system Out side North America use an appropriate adaptor to fit the mains power outlet This instrument is not grounded through its power supply Grounding of the metal enclosure will occur through the equipment rack audio con nections shield or individual pins or through the auxiliary signals con nector Do not depend upon or attempt to use the enclosure as a safety ground A strain relief is provided for the power supply cord to prevent acciden tal removal of power After plugging the low voltage power cord into the Sentinel power input connector loop the cord through the supplied Strain relief Installation 1 Network connection The Sentinel provides a 10BASE T Ethernet network interface through an RJ45 connector on the rear panel By default the Sentinel determines its TCP IP network settings using the Dynamic Host Configuration Protocol DHCP This reguires a DHCP server on your netw
50. maximum loudness and range if defined are displayed below the bar Integrated loudness measurements require a minimum segment length of 3 2 seconds Loudness integration status indicator The loudness integration status indicator shows the state of integrated loudness measurements Loudness calculation in progress animated ir Loudness calculation paused x Final values loudness is within specified tolerance Final values loudness is outside specified tolerance Conventional and Dual Stream loudness measurements The Sentinel can measure integrated loudness exactly as specified in the ITU BS1770 standard The standard along with the ATSC and EBU variants requires the ability to run pause stop and reset the loudness measurement The Sentinel rear panel auxiliary signals connector pro vides two GPI pins for this purpose One serves as a RUN PAUSE con trol and the other as a RESET control over the measurement There are also equivalent soft buttons on the UI and network accessible software commands for the same functions The conventional mode of operation specified in these standards was developed with measuring a single program or commercial being pro duced or broadcast The pause feature allows the portions of a pro gram during commercial or other break periods to be ignored and an accurate measurement of the program obtained User Manual Ina broadcast stream there is no pause When a program is paused th
51. measurement and starts a new measurement An explicit Reset event occurs whenever the RESET control line transitions from False to True An implicit Reset event occurs under the following conditions 1 A Reset of a Commercial segment occurs when the P C control line makes a transition from the Commercial state to the Program state 2 A Reset of a Program segment occurs when the P C control line makes a transition to the Program state while the RESET control line is True The loudness control lines must be asserted for a minimum width of 40 ms and are debounced for 20 ms following the last transition The polarity of each control line can be defined in the Loudness settings panel p 64 Loudness gating control buttons Located at the bottom of the loudness meter panel the loudness gating control buttons let you control integrated loudness measurement GB Program Commercial button Slider that switches between program and commercial segment measurement Button appearance alternates between program P and commercial C graphics oC Measure Pause button Pauses or resumes measurement But ton appearance alternates between measure and pause graph ics This button replaces the program commercial button when the Sentinel is in measure pause mode Readings page 39 tadi Restart button Restarts loudness measurement Readings Timeline panel 1 Readings timeline Loud a Readings Timeline O10 ness program commer cial erro
52. mercial breakout cables may be used to connect the Sentinel input to XLR or 1 4 phone jacks Cables should follow the standard pin 2 high pin 3 low and pin 1 shield connection on the female XLR connectors These are available from a variety of vendors in a range of lengths Apogee AD 8 IFC 1m Horizon DA88 F 5 Toii HOSA DTF 80 320 Mogami DB25 XLRF 5 10 15 20 25 Monster SLDA88 FX ts om Planet Waves XLR F 5 10 25 ft Pro Co DA88XF 5 10 15 Quantum Audio QDA88 F 6 15 20 25 ft Switchcraft DB25M XLRF 2 3 5ft Specifications for fabricating custom cabling are provided in Analog audio connections p 85 Connecting unbalanced inputs Commercial breakout cables are also available to connect the Sen tinel input to RCA connectors or other unbalanced sources However take care to ensure the cable connects the low side of the input to the source connector shield at the source itself Otherwise the differential input will be unable to attenuate hum induced by ground potential dif ferences between the source and the Sentinel Specifications for fabricating custom cabling are provided in Analog audio connections p 85 Installation 13 Analog levels configuration The maximum input level is software selectable between 28 and 22 dBu by using the Max Analog In field of the Levels amp Metering set tings panel p 62 The lower maximum level setting provides a cor respondingly lower noise floor and maintains dynam
53. mp Tem perature settings panel p 70 Date amp time configuration The Sentinel uses a real time clock to accurately record the timing of measurements in Coordinated Universal Time UTC For itto be able to store measurement data for later retrieval it is essential that the clock be set accurately The Sentinel ships with its clock already set To maintain accuracy it synchronizes the clock to a Network Time Protocol NTP server When times are displayed they are converted to the local timezone and day light savings setting You configure the NTP service and local timezone through the Date amp Time settings panel p 73 The timezone can also be set through the Front Panel menus p 19 and you can manually set the clock through the menus if for some reason you re not able to use an NIP server Log repository configuration The Sentinel logs all sampled audio characteristics and all measure ments It stores up to 25 hours of this data internally However mea surement data is stored in volatile memory and will be lost in the event of a power failure To preserve and access the data it must be down loaded from the Sentinel to a storage repository Once data is in the repository it is protected from loss and you can use the user interface to review and display it in the same way as live readings The Sentinel stores the log repository in a local directory on your sys tem or a directory on a shared network filesystem
54. ms update rate Loudness analysis Measurements Momentary Short Term Integrated Loudness Loudness Range Standards ATSC A 85 ITU R BS 1770 1 EBU R 128 tech 3341 tech 3342 Classification signal may be classified as program or commercial allowing one meter to continuously monitor a broadcast stream segment Duration 3 2 seconds minimum Channel Allocation 8 channels allocated between surround and ancillary meters Control 2 hardware signals per loudness meter Surround and ancillary Channel analysis Channel Loss Compares individual channel loudness to user specified threshold and duration Excessive Level Compares individual channel levels to user specified threshold and duration Hum Detection Detects stable 50 100 150 Hz or 60 120 180 Hz tones and harmonics Digital analysis Interface Measures sample rate Detects loss of lock parity errors Detects cross interface inconsistency Data Detects digital zero and digital clipping Measures bit activity active word length Detects cross channel inconsistency 93 94 Metadata Other analysis DC Inputs Temperature Analog input Connection Format Input Impedance Maximum Input CMRR Response S N Crosstalk Analyzes status bit metadata Detects metadata inconsistency Compare to independent min amp max values Compare to min amp max temperature 8 channels on 25 pin female D sub Balanced or Unbalanced 1 MO each side to ground 28 dBu gt 50 dB 20 Hz to 20 kH
55. n its metadata If dialnorm is preferred but not available the Loudness Target will be used Settings page 65 66 Under Level Error If A Front Channel is Below Sets the minimum front channel loudness allowed before issuing an under level error The value may be set between 40 and 85 dB in 3 GB steps For Longer Ihan Sets the duration that the front channel loudness must be below the specified minimum to generate an under level error The choices are 1 3 10 or 30 seconds Or LFE is Below Sets the minimum LFE loudness allowed before issuing an under level error The value may be set between 40 and 85 dB in 3 GB steps For Longer Ihan Sets the duration that the LFE loudness must be below the specified minimum to generate an under level error The choices are 1 3 10 or 30 seconds A Surround Channel is Below Sets the minimum surround channel loud ness allowed before issuing an under level error The value may be set between 40 and 85 dB in 3 dB steps For Longer Ihan Sets the duration that the surround channel loudness must be below the specified minimum to generate an under level error The choices are 1 3 10 or 30 seconds A Back Channel is Below Sets the minimum back channel loudness allowed before issuing an under level error The value may be set between 40 and 85 dB in 3 GB steps For Longer Ihan Sets the duration that the back channel loudness must be below the specified minimum to generate an under level
56. nd downmix compatibility displays 31 Status bar 34 Loudness meter panel 34 Hardware loudness gating control 39 Loudness gating control buttons 39 Readings Timeline panel 40 Timeline 40 Timeline scroll bar 43 Transport control buttons 43 Segment table 45 Signal Histogram panel 47 Errors panel 48 Digital Interface panel 51 Dolby Metadata panel 54 DC Inputs amp Temperature panel 58 23 On the left of the Readings page is anavigation panel that lets you select which measurement panels are visible It also lets you switch to the Settings page p 59 Initially only the main metering panel will be visible The panels you ve selected for display are tracked from one session to the next as are settings made through the configuration menus asso ciated with the readings panels These preferences are all associated with your browser other users accessing the same Sentinel can set their own preferences The web interface saves preferences in your browser s local storage You ll need to reenter the settings if they re lost for some reason if you clear cookies on your browser change browsers or change the IP address of the Sentinel Meters panel p 25 true peak meters p 28 bargraph meters p 26 balance display p 30 spectrum and downmix compatibility displays p 31 status bar p 34 a Loudness meter panel p 34 Bargraph display of continu ous and integrated loudness measurements Readings Timeline pa
57. nel p 40 Timeline traces of recorded readings Allows you to review and replay readings recorded by the Sentinel Errors panel p 48 Error and alarm state for all eight inouts downmixes auxiliary inputs T Digital Interface panel p 51 Interface characteristics and metadata for AES or SDI input oo Dolby Metadata panel p 54 Metadata for Dolby coded audio DC Inputs amp Temperature panel p 58 Auxiliary inout DC Voltage readings and Sentinel internal temperature User Manual Meters panel 1 Input channel bargraph meters True peak indi cator level bar and bandwidth bar for each input channel Balance display Plan view of listening space with listener at center Spectrum display Downmix compatibility display Power loss in stereo and mono down mix by octave Downmix bargraph meters True peak indi cator and level bar for downmix channels Status bar Status indica tors serial number date amp time linear time code LA Signal Histogram panel p 47 Summary graphical display of selected ranges from recorded readings Settings page p 59 Panels for configuring Sentinel mea surements and error reporting Qualis Audio Sentinel dBFS Balance 0 Spectrum 50 60 70 2 30 80 Fast LF RF CF LFE LS RS Fast SN 20C148 06 Feb 11 13 36 52 PST LTC 10 02 27 Readings page 25 26 Bargraph meters 1 Meter axis Meter units at top meter
58. nel 67 Downmix Compatibility settings panel 68 DC Inputs amp Temperature settings panel 70 Alarms settings panel 71 Alarm Actions settings panel 72 Date amp Time settings panel 73 Log Repository 75 Log repository setup in the user interface 77 Purging and archiving repository data 78 scheduled downloading of log data 78 Connections and cabling 83 AES digital audio connections 84 Analog audio connections 85 Auxiliary connections 86 Breakout adapter 87 Firmware updates 89 Specifications 93 Warranty 95 Safety information 97 User Manual 1 Overview audio control signals c fate N oe 4 Cd Ar alarm signals network user interface alarm emails The Qualis Audio Sentinel was designed to address the compound needs of increased audio monitoring reguirements decreased person nel availability and shrinking budgets It uses advanced signal process ing algorithms to directly answer broadcast user s fundamental gues tions rather than merely displaying information reguiring further anal ysis by experienced personnel The Sentinel allows significant reduc tions in operating costs while improving the guality of delivered audio Features The Qualis Audio Sentinel monitors a Surround program up to 8 chan nels Measurements include m Individual surround channel signal levels with user selectable ballis tics E Stereo and mono downmix signal levels with user selectable ballistics m True peak
59. ngs panel po 71 The state of the four Sentinel alarms is shown at the bottom of the Errors panel Unlike the error indicators these 50 User Manual are not subject to the Hold Time setting Their state is directly reflected in the indicators Configuration Error Hold Time gt 1 second 3 seconds v 10 seconds 30 seconds Error Hold Time sets the time for which the panel indicators display a recent error This setting only affects errors displayed on this panel not on other panels or the bargraphs It also does not affect the Alarm Out status display at the bottom of the panel The hold time may be setto 1 3 10 or 30 seconds Digital Interface panel X Digital Interface OLO input Format Discrete AES LF RF CF LFELS RS Interface Rate 48 kHz e ee Active Length 20 E EE EE E Channel Status Metadata Sample Time 00 00 00 e Time Of Day 00 00 00 e Source Destination o Common Metadata e o Format Consumer Audio Emphasis None Sample Rate Notind Width Not Ind Align Level Not Ind Ch Mode Notind Ch User Bits Not Ind Auxillary Bits Not Ind Source Lock Reference Hidden Data The Digital Interface panel displays signal characteristics and metadata for the signals applied to the digital inputs Input Characteristics The Input Characteristics section displays format rate and length Readings page 51 52 Inout Format Discrete AES coded AES or an SDI format For SDI
60. nt panel displays and controls Opal udio MUTE CD ALARM Buttons and knob are used to navigate the configura tion menus and change settings Backlit labels identify control s function and operability lit when functional off when inoper ative 18 1 LCD display Dur ing operation shows date and time and IP address On input line 1 shows selection title line 2 shows setting 2 Up Down Scroll through choices in current line 2 list 3 Left Right Step through values or fields of cur rent line 2 setting active value is under lined User Manual 4 Select Enters configura tion menus confirms set ting of current selection Back Moves back in menu hierarchy Dis cards setting unless SELECT is pressed first Knob Rotate to change active setting value or field Press to confirm setting of current selec tion 7 Mute Silences audible alarm 8 Alarm Lights when one or more alarms are active cycles through numbers of active alarms Front Panel menus Main Settings Date Time Set Network Setup Password Set Device Name Set Firmware Rev LCD Contrast Network Setup DHCP Mode Setup View DHCP Adar Static IP Setup View MAC Adar Web Password XXXXXXXXXXXXXXX XXXXXXXXXXXXXXX Firmware Revision MeasDSP date Date Time Setup Date Format Date Set Time Format Time Set DST Setup UTC Zone Set Date Format MM DD DD MM
61. o Dolby Digital encoded signals one in each Me hinga channel ksa ai E 24 bit Dolby E encoded data packed in all 24 bits of both channels 54 User Manual F 20 bit Dolby E encoded data packed in the 20 most signifi cant bits of both channels F 16 bit Dolby E encoded data packed in the 16 most signifi cant bits of both channels PCM Not Dolby encoded PCM or other coding Rate Bitrate of data in Dolby packets Frame Rate Rate of data words in the interface Stream Number Stream from O through 7 being decoded A standard 2 channel 24 bit 48 kHz digital audio stream can contain up to 8 Dolby E encoded streams ID Version of Dolby stream format Configuration Allocation of audio channels up to 8 within the Dolby E bitstream into mono stereo and surround programs Defined only for Dolby E streams Some common values are 1 2 3 4 5 6 TA 8 Sal 1LF 1RF 1CF 1LFE1LS 1RS 5 1 2 1LF 1RF 1CF 1LFE1LS 1RS 2LF 2RF 5 1 2x1 1LF 1RF 1CF 1LFE1LS 1RS 2CF 3CF 7 1 VER TCF ELS 1LB TRF 1LFE TRS 1RB 7 1 screen 1LF 1CF 1Lc 1LB 1RF 1LFE1RS 1 Rc 2X2 1LF 1RF 2LF 2RF 3x2 TLE RE GEF GRF 2LF 2RF 4x2 VEF CAR SLF 3 RF ALF ARF 2 LE 2RF Use Iype of main or associated audio service contained within the bitstream CM Complete Main ME Main Music amp Effects VI Associated Visually Impaired HI Associated Hearing Impaired D Associated Dialog C Associated Commentary E Associated Emergency VO Associated Voice Over Coding Mode Indicates which channels ar
62. on and use 8 AES digital audio connection 9 SDI digital audio connection 11 Analog audio connection 12 Auxiliary signals connection 14 Date amp time configuration 15 Log repository configuration 15 Getting organized ea am ualis ualisaudio Kade oe IN USA S N AUXILIARY SIGNALS MODULE 2 MODULE 1 N E BAL T BAL ail 0000000000000000 The Qualis Audio Sentinel monitors a surround audio signal through analog or digital inputs A networked instrument it provides its user interface through your browser and delivers alarms via email 1 2 3 4 5 1 Power Input from univer 3 Network RJ45 connec 4 Audio Module 2 sal input voltage external tor for 10BASE T Ether Optional second audio power supply net LEDs indicate con input output module 2 Auxiliary Signals Linear nectivity and network 5 Audio Module 1 Primary Time Code input 6 DC activity audio input output mod inputs 2 loudness con ule AES digital SDI digi trol input pairs 8 contact tal or analog closure outputs To install the Qualis Audio Sentinel you mount it where it will be used connect it to power network audio source and auxiliary signals and configure it for operation For a basic installation you can typically make the connections using standard cabling and you can configure the Sentinel through its user interface on your browser You ll need to view the Sentinel s front panel to determine its netw
63. on the timeline It allows a choice of Program Loudness and Maximum Downmix mea surement traces Playback Speed selects rate at which readings are displayed during playback Timeline Scale lets you view the timeline at varying levels of detail from 1 1 where each mark on the timeline represents a single reading to 1 16 where each mark combines 16 readings Timeline Range restricts the range of the timeline scroller bar to the last day of data 7 days or 30 days Timeline scroll bar The timeline scroll bar and its scroller below the timeline traces indi cate the position the visible timeline segment within the readings his tory and allow you to reposition the segment of readings data dis played on the timeline By default the scroll bar spans your full read ings history but for convenience you can restrict its range to 1 7 or 30 days see below Dragging the scroller moves the timeline display Clicking at a position on the scroll bar moves the timeline toward that position You can also move the timeline using mouse scroll wheel movements or touch ges tures on the scroll bar or timeline itself if your system support them Transport control buttons Located in a cluster at the right of the timeline panel the transport con trol buttons let you control the play of live or logged readings Readings page 43 44 Co Play Pause button If paused starts play if playing live or logged readings pauses pla
64. ork address you can also use the front panel to view configuration settings and modify network time and security set tings If this is the first time you have installed a Sentinel we suggest you per form a basic installation to confirm that your unit is working correctly and to gain familiarity with its operation Once you re comfortable with the basics finish your permanent installation Pay particular attention to these configuration steps should they apply to you The instructions that follow provide more detail E Static IP address By default the Sentinel gets its network address automatically using DHCP services You may prefer a static address you use the address to access the Sentinel and a static address won t change on you You will need to contact your network adminis trator to determine appropriate settings for your network User Manual m Auxiliary signals Linear Time Code input loudness controls alarm outputs and DC inputs are grouped together on a single connection To gain access to any of these you will need to fabricate a custom connector m Log repository The Sentinel downloads its measurement data to a log repository If you are using this data as an archival record you may need to consider procedures for managing the data Mounting and operating environment The Sentinel is designed for rack mounting and comes with integral rack ears The instrument dissipates relatively little heat 7 Watts for ana
65. ork to supply the settings Alternatively you can configure static network settings through the net work setup section of the Front Panel menus p 19 Static settings are stored in non volatile RAM so they are preserved if power is inter rupted The configured IP address dynamic or static is shown on the front panel LCD display User interface configuration and use The Sentinel provides its user interface through your browser It is accessible from wherever you have network access to the Sentinel Connect your browser to the user interface by using the Sentinel s IP address You ll use the interface to verify the installation and to perform several configuration steps Browser compatibility and system reguirements The user interface is compatible with these browsers Chrome v6 0 or later Firefox v3 5 or later Internet Explorer 8or 9 E7 Compatibility View off Safari v5 0 or later Your browser must have cookies enabled for the user interface to oper ate correctly The log data features require the Java Runtime Environment v1 5 x or later to be installed and enabled in your web browser settings If the user interface is unresponsive or the displays are fragmented or corrupted check your browser version and compatibility settings Indi 8 User Manual cators on the status bar p 34 can also help you diagnose user interface problems The Sentinel user interface performs substantial processing in the browser Bro
66. ors on the AES audio module and the AES input output connector on the SDI audio module share a common pin configuration and electrical charateristics The AES input output connectors provide a coded audio output that is not present on the input connector The AES audio connections by default operate with unbalanced inputs The inputs are terminated in 75 0 and accept up to 1Vpp Pin 9 on the connector must be shorted to ground to invoke balanced operation This changes the input impedance to 120 and pads the amplitude to accommodate 5Vpp signals Both modes are transformer isolated allowing operation without concern for ground loop issues User Manual Analog audio connections Analog connections appear on a DB25 con nector using the TASCAM pinout oo SN INO N IYO CONDOR ON A N Ya w 6 1 2 3 IS 5 6 7 8 9 10 11 12 13 Qualis Audio offers a Breakout Adapter p 87 which converts the 25 pin connector to 24 screw terminals suitable for attaching plenum cable or other fixed installation applications When using the breakout adapter with balanced inputs connect the Channel 8 high Channel 8 ground Channel 7 low Channel 6 high Channel 6 ground Channel 5 low Channel 4 high Channel 4 ground Channel 3 low Channel 2 high Channel 2 ground Channel 1 low Reserved 14 15 16 eg
67. ository Normally you will also configure the web interface to download data from the Sentinel to the log repository so that all logged data is available for display Configuration r a Select Log Repository v Save Disabled Save Log Now Save Continuously Scheduled Log Save P Save Every Hour Save Every 3 Hours Export Log Data J Save Every 6 Hours Save Every 12 Hours Save Every 24 Hours u 7 Configuration options for defining the log repository and scheduling downloads are located in the pulldown menu on the readings naviga tion panel at the left of the readings page The Select Repository option presents a file browser that lets you select the location of the log repository scheduled Log Save enables periodic downloading of log data from the Sentinel to the repository and lets you set the interval The Save Log Now performs an immediate download of all new log data to the repository Set the interval to Save continuously to ensure all logged data is avail able for display The downloading of log data by the web interface operates only while the web interface remains active For alternative strategies that provide reliable archiving of continuous log data in a production environment see the repository maintenance notes below Repository status There is a status icon that provides an active indication of log reposi tory problems This small folder shaped icon is located on the left of the main meter panel st
68. program measurement and the instrument will immediately begin making a new measurement of program loudness These program and commercial loudness measurements are dis played logged and reported along with the program commercial iden tifier the time and the timecode Each measurement is compared to the specified loudness limits and alarms are issued if reguired Readings page STA 38 Configuration gt 27 LU Range Meter Scale Result Hold Time gt v 54 LU Range 1 second si 75 LU Range 3 seconds 10 seconds vY Relative LU Scale 30 seconds Absolute LKFS LUu Scale 7 J Meter Scale sets the scale used to display the loudness measurement bargraphs and selects between relative and absolute display units The bargraph scale may be set to either of the EBU required ranges of 27 or 54 LU ora 75 LU range The larger ranges allow monitoring of wider dynamic range material at the expense of display resolution The 27 and 54 LU EBU meter ranges are positioned relative to the loud ness reference with 1 3rd of the scale above the reference and 2 3rds below The reference may be a fixed target value or the dialnorm value from the Dolby metadata The reference selection is set in the Loudness settings panel p 64 The 75 LU meter range has its maximum at O LKFS The numeric loudness values may be displayed in either relative or absolute units Except loudness range which by definition is a relative value The r
69. put 3 4 Input 4 red green blue h synch Gn Le Ana Discrete PCM input chan nels compatible with VGA monitor cable pinout 1 Input 1 red 2 Input 2 green 3 Input 3 blue 4 Input 4 h synch 5 Coded audio output v synch AES In connection AES3 IN gt Q M on Ww lt The AES In jack accepts up to 4 balanced or unbalanced coded audio streams in AES 3 format any one of which may be routed to the internal Dolby decoder Unbalanced inputs use standard VGA monitor cables Balanced operation is selected by shorting a pin on the connector to ground Qualis Audio provides an optional HD15 to XLR cable for this configuration Specifications for fabricating custom cabling are provided in AES digi tal audio connections p 84 AES In Out connection AES3 IN 2 Q z N W lt The AES In Out jack accepts up to 4 balanced or unbalanced AES streams Each carries 2 channels for a total of 8 input channels These accept PCM format inputs which may be directly monitored When the Sentinel is configured to process coded audio input the AES In Out connector outputs the selected coded audio signal This signal is always unbalanced User Manual The AES audio input output connection has identical characteristics to the AES input connection except for the addition of the coded audio output Specifications for fabricating custom cabling are provided in AES digital au
70. put From field For AES input modules it selects between the PCM signals on the AES In Out connector and coded audio signals on the AES In connector For SDI input modules it selects between PCM signals on the SDI connector coded audio signals on the SDI connector and PCM signals on the AES In Out connector SDI Group Appears when a SDI module is selected with the Use Input From field and the PCM over AES mode is not used It selects which two of the SDI groups are monitored Coded Source Appears when Coded Audio is selected with the Digital Mode field It selects which of the four channel pairs drive the Dolby decoder and also drive the coded audio output on the AES In Out connector Surround Format Selects the format for the surround program and the presence or absence of additional channels The choices are 5 1 Ch 5 surround channels with LFE 6 1 Ch 6 surround channels with LFE 7 1 Ch 7 surround channels with LFE 5 1 2 5 surround channels with LFE and 2 ancillary channels 6 1 1 6 surround channels with LFE and 1 ancillary channel Channel Source Selects the source of signal for the indicated channel Channel is one of LF RF CF LFE LS RS LB RB It is possi Settings page 61 ble though not advised to assign the same numeric channel to more than one surround channel Levels amp Metering settings panel Xx Levels amp Metering Cm he Fast Decay vale time 22 dBu EA eee 1 GBFS Excessive Level Error I
71. r alarm traces shown 2 Programming segment Program Loudness 144 25 44 35 p a m table 04 Feb 11 23 59 59 Bo pin 3 Timeline scroll bar Begin End Duration LTC Loudness Peak Range 4 Play Pause button 06 Feb 1 13 44 32 06 Feb 11 13 45 15 00 00 44 09 11 03 5 Skip backward button 06 Feb 1 13 47 20 06 Feb 1113 48 20 00 01 00 09 13 53 6 Skip forward button 06 Feb 1 13 51 13 06 Feb 11 14 43 10 00 51 57 09 17 46 06 Feb 1 14 33 34 06 Feb 11 14 34 34 00 01 00 10 00 13 06 Feb 1 14 42 11 06 Feb 11 14 42 36 00 00 25 10 08 52 06 Feb 1 14 43 11 06 Feb 11 14 46 35 00 03 23 10 09 51 The Readings Timeline panel is a summary display of the history of readings from the Sentinel from the latest readings back through the stored log data The timeline panel also allows you to identify and work with programming segments within the readings history The two major components of the panel are the timeline itself which displays a set of signal traces and the segment table The web interface saves a temporary record of readings as it receives them from the Sentinel These readings combined with readings down loaded and saved in the Chapter 6 Log Repository p 75 provide a continuous record limited only by your retention period for the log repository Timeline What is visible on the timeline display is typically only a portion of the history When the user interface is displaying live data the timeline dis pl
72. real time by hardware or software inputs to the Sentinel The associated loudness measurements are gen erated by the hardware and displayed on the loudness meter panel as they occur These measurements their beginning and ending times along with their context program or commercial are stored in the log data The segment category setting for a measured segment is either EJ Program segment Commercial segment Readings page 45 46 Defined segments You create defined segments through the user interface Loudness measurements for defined segments are calculated within the user interface from saved log data and are recalculated when the segment s bounds change so they update in real time Each has a corresponding pair of bounds cursors displayed on the readings timeline You can change a segment s beginning and ending times by moving its bounds cursors or by editing the begin time end time or duration displayed on its segment table entry Defined segments may also appear on the Signal Histogram panel p 47 Defined segments are numbered for identification These numbers are displayed both in the segment table and on the segment s bounds cur sors Numbers are assigned consecutively starting at one Adding or deleting segments can cause renumbering Changing a segment s beginning or ending time can change its position in the table which can also cause renumbering Combined measurements for defined segments are displ
73. rogram encoded audio has two Surround channels yes no not indicated Headphone Indicates whether program has been processed with Dolby Headphone technology for binaural playback A D Analog to digital conversion used standard or HDCP process ing Readings page 57 DC Inputs amp Temperature panel CITATA The DC Inputs amp Temperature panel displays readings from the DC Input 1 v 0 92 Sentinel s six auxiliary voltage inputs These inputs are updated approx DC Input 2 0 00 A 5 DC Input 3 0 00 imately 3 times per second so a transient whose duration is less than Sean ap 330 ms may be missed DC Input 6 v 2 39 Temperature v 429 C This panel also includes a reading of the Sentinel internal temperature in degrees Centigrade This will typically be a few degrees above that of the rack in which the Sentinel is installed This allows monitoring tem perature of the equipment rack at a remote facility and triggering an alarm if the temperature exceeds allowable limits The DC voltage and temperature readings are compared to upper and lower limits set in the DC Inputs amp Temperature settings panel p 70 The results of that comparison are shown to the right of each reading using status icons Reading is within limits Reading is outside limits see Auxiliary signals connection p 14 for details about connecting these inputs 58 User Manual Settings page Input amp Sources settings panel 61
74. rom the date of shipment During the warranty period we will at our option either repair or replace any product that proves to be defective To exercise this warranty within the United States contact Qualis Audio directly Outside the United States contact the distributor from whom you purchased the product You will be given prompt assistance and return instructions Send the product transportation prepaid to the indicated service facility Repairs will be made and the product returned transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days Limitation of Warranty This warranty does not apply to defects resulting from misuse or prod uct modification THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES 95 96 Safety information Use this product only as described in this manual Any other use or application may damage the instrument void the warranty or pose a safety risk to personnel This product is intended for indoor use in a non condensing environ ment This product is not grounded through Its power supply Grounding of the metal enclosure is obtained through the audio connections shield or ground pins or through the auxiliary signals connector Do not dep
75. s Input Metadata Enables reporting of individual channel metadata errors Group Metadata Enables reporting of cross channel metadata inconsis tencies Coded Audio Errors Enables reporting of packet coding errors Coded Audio Metadata Enables reporting of errors in the coded audio metadata Settings page 71 Other Errors DC Inputn Enables reporting of DC Input n being out of bounds Temperature Enables reporting of temperature errors Alarm Actions settings panel 2 Alarm Action Beep Send Emali To Enable Aa elas ha 1 sec Mask Repeat Emali For Email Server Settings Server JETTA HE test qualisaudio com Password KEKE From Port 25 Test Enabled Email Actions Sentinel identification Elite Sentinel 1 Manually Assert Outputs oe ee ee Sess 12 When an alarm occurs the Sentinel will assert an open collector output on the rear panel auxiliary signals connector and will display a warn ing on its front panel It may also be programmed to sound an audible alarm or send an email notification Alarm Action settings panel has a row for each of the four alarms specifying the actions taken when that alarm occurs Beeo Check the box for an audible indication at the Sentinel chassis location Send Email To Addresses to receive emails about this alarm Separate multiple addresses with commas or semicolons Limited to 124 characters Enable Check the box to send email Delay First Email For The Sen
76. s Each pair corresponds to an entry in the segment table Both bounds cursors display the segment number which also appears on the segment table entry Bounds cursor pairs are created and deleted as segments are added and removed from the segment table using the segment add remove buttons provided by the segment table p 45 You can also remove a pair and its associated segment by dragging either cursor off the timeline vertically Dragging the left bound of a pair moves both cursors maintaining their separation Dragging the right bound does not move the left In other words you position a segment by dragging its left bound and change its duration by dragging its right bound Bounds cursors move independently when dragged except that nei ther cursor can be dragged past the other and instead pulls the other cursor along with it The cursors are adjacent when a new segment is created you can separate them by dragging one back and forth Dragging when playing logged readings changes to paused state Dragging while playing live readings does not change state and live play resumes when dragging stops User Manual Configuration fT 4 Timeline Traces gt Playback Speed P Timeline Scale b v Program Loudness v Maximum Downmix 4x 2x V 1 1 imeli gt 1 4 L Timeline Range nw aa v i ani Last day 16x Last 7 days 32x v Last 30 days 64x An Timeline Iraces selects the data traces displayed
77. s panel p 67 Sets hum error threshold LFE bandwidth threshold digital repeated sample error threshold front surround and CF LFE swap thresholds Ps Downmix Compatibility settings panel p 68 Sets parameters for downmix compatibility analysis and thresholds for error checking DC Inputs amp Temperature settings panel p 70 Sets upper and lower limits for error checks on DC inputs and inter nal temperature Alarms settings panel p 71 Selects which errors are routed to which alarms H 60 User Manual Alarm Actions settings panel p 72 Selects notification actions for each alarm Includes setup of email server Date amp Time settings panel p 73 Configures network time service and time zone Input amp Sources settings panel amp Input Format amp Source Use Input From Digital Mode QS SDI Group no SDI Coded Source et suria 9 1 Ch Kang AES 1A RF Source CF Source AES 2A LFE Source AES 2B 4 LS Source The Input amp Sources settings panel selects the program format and channel mapping Use Inout From Selects the module to use for measurements The mod ule in the slot closest to the side of the Sentinel is Module 1 in the middle is Module 2 The menu only allows installed modules to be selected Following menu items are tailored to match the selected module s type Analog AES or SDI Digital Mode Appears when a digital module is selected with the Use In
78. so used when performing the Compatibility measurements After Summing normalization factors are applied so the peak amplitude of the downmixed channels will not exceed full scale lf digital inputs are used the gain coefficients may be automatically set using information contained in the metadata if present If automatic set ting is selected and the metadata downmix coefficients are set to Not Indicated or if the metadata is missing the manually set values will be used Bargraph ballistics The input and downmix channel bargraph levels are measured with user selected metering ballistics The Meter Type in use sets the dis played scale and units See Levels amp Metering settings panel p 62 for descriptions of meter types Display colors As is common for bargraph level meters the indicator color changes with level From top to bottom Red Signal is at or above Overload level Yellow Signal is above Alignment Level and below Overload Level Green Signal is below Alignment Level The Alignment Overload and Clipping Levels are set in the Levels amp Metering settings panel p 62 For most meter types these param eters are defined in the appropriate standards document In all cases these standards based values may be overridden with user selected values Readings page 27 28 Warning Messages A red vertically written error message appears over the bargraph if certain errors are detected in that channel They are not
79. standards the LFE is not included in the overall loudness measurement User Manual Spectrum and downmix compatibility displays Spectrum display Shows the spectrum of the mono downmix channel in octave bands Downmix compatibility display Shows stereo and monaural downmix compatibility power loss compared to original in ee ee octave bands LFE compatibility dis play NO ee Spectrum display The spectrum display shows the surround program spectrum in octave Spaced band center frequency values The display is updated at and averaged over 0 68 second intervals This display has several important applications lt allows verification that the signal spectrum is consistent with the type of program being monitored For example there should not be signifi cant high or low frequency content in a program that is supposed to be dominantly dialog It enables assessment of the relative level of spectral components which are experiencing downmix cancellation If the downmix com patibility display shows significant cancellation at 4 KHz but the 4 kHz octave band is 20 dB below the 1 KHz octave the cancellation is likely to be unimportant However if the dominant spectral components are also the ones showing cancellation then a smaller degree of cancella tion may be cause for concern Downmix compatibility display The downmix compatibility display shows stereo and monaural down mix compatibility in oc
80. surround sound audio monitor Qualis i Auc lic User Manual Version 2 0 May 2011 surround sound audio monitor User Manual Version 2 0 May 2011 Qualis Audio Inc Lake Oswego Oregon Copyright 2011 Qualis Audio Inc All rights reserved Dual Stream is a trademark of Qualis Audio Inc SEN IUM 110531 Qualis Audio Inc PO Box 731 Lake Oswego OR 97034 1 503 635 9376 voice 1 503 635 3851 fax www qualisaudio com support qualisaudio com Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Contents Overview 1 Installation 5 Getting organized 6 Mounting and operating environment 7 Power connection and grounding 7 Network connection 8 User interface configuration and use 8 AES digital audio connection 9 SDI digital audio connection 11 Analog audio connection 12 Auxiliary signals connection 14 Date amp time configuration 15 Log repository configuration 15 Front Panel 17 Front panel displays and controls 18 Front Panel menus 19 Readings page 23 Meters panel 25 Loudness meter panel 34 Readings Timeline panel 40 Signal Histogram panel 47 Errors panel 48 Digital Interface panel 51 Dolby Metadata panel 54 DC Inputs amp Temperature panel 58 Settings page 59 Input amp Sources settings panel 61 Chapter 6 Chapter 7 Chapter 8 Appendix A Appendix B Appendix C Levels amp Metering settings panel 62 Loudness Settings panel 64 Channel Analysis settings pa
81. tave soaced band center frequency values Octave band power measurements are made for each input channel and each of the downmix channels The input channel measurements Readings page 31 32 used for a specific downmix are summed and compared to a downmix channel measurement The loss in each octave is displayed in a manner similar to a frequency response graph where the rolloff represents the signal loss at each octave band There are separate indicators for left and right stereo channels and monaural Monaural downmix loss Left stereo downmix loss Right stereo downmix loss As these go down away from the O dB line it means that the signal has cancelled more completely and more is missing from the mono or stereo mix The display changes color as the loss increases green when there is little loss yellow when loss is within 3db of the downmix error thresh hold red when it equals or exceeds the threshhold The downmix error threshhold is set in the Downmix Compatibility settings panel p 68 Downmix compatibility calculations in detail The Sentinel takes a radically different approach to quantifying com patibility from that used in other products Other products characterize interchannel phase relationships and show these to the user as multi dimensional Lissajous patterns They typically produce complex mul ticolor shapes which must be studied and require much experience to correctly interpret Instead t
82. the Sentinel It controls the measurement method and the error testing parameters It also sets the Under Level Error thresholds and durations Loudness errors are based on comparison of loudness measurements with a reference level The reference may be a fixed target level or may be the dialnorm value extracted from a Dolby Digital or Dolby E encoded stream Both the fixed target and the selection of whether to reference it or the dialnorm are set on the Loudness settings panel If the dialnorm value is not available as occurs if a PCM signal is received the fixed target will be used Loudness measurement Loudness Target Sets a target level to which loudness measurements are compared in determining loudness errors Used when the Relative Io setting is Target or when metadata containing dial norm is unavailable Loudness Target is also used as an alignment level for loud ness displays Loudness Standard Sets the weighting filter and measurement method used The choices are the ITU BS1770 1 standard referenced by the ATSC and the TASA standard used to measure film trail ers TASA is not currently supported Measurement Mode Determines how the loudness measurement con trols are interpreted When set to Measure Pause the Loudness meter control enables or pauses measurement When set to P C New the loudness meter control identifies the audio as pro gram material or commercials User Manual Integrated loudness control Controls
83. tinel will wait this long before sending email notification of any error This allows faults which might cause multiple errors to be combined into a single notification email Mask Repeat Email For Disables repeat emails about the same error for the specified duration This prevents a steady stream of emails from a single fault Server DNS name of the email server hosting the Sentinel s email account Limited to 34 characters User ID User ID usually the email address of the Sentinel s email account on the server Limited to 30 characters Password Password of the Sentinel s email account on the server Lim ited to 16 characters From Sender email address to use for notification messages Limited to 30 characters Port Server port number for sending email 0 to 65535 Send Pressing this button will send a test email to all email addresses To prevent this for some addresses uncheck the User Manual corresponding Enable box This button is disabled while modi fying settings Device name The device name is used in alarm email messages to identify the Sentinel from which the alarm originated Limited to 16 characters Manually Assert Outouts Forces the auxiliary alarm outputs to a low state useful for testing connections This overrides the alarm controls Date amp Time settings panel 2 Date amp Time Time Settings NTP Server Kiu 08 00 Western US DST amp Front Panel Display Format shm month day
84. ts the duration that a signal must exceed the speci fied bandwidth to generate an LFE BW error The choices are 1 3 10 or 30 seconds Front and Surround or Back Swapped If Front is Softer for Longer Than Sets duration that the surround or back channels must exceed the front channels to generate a Front Surround Swap or Front Back Swap error The choices are 1 3 10 or 30 seconds Settings page 67 CF and LFE Swapped If LFE Bandwidth gt CF Bandwidth For Longer Than Sets duration that the LFE bandwidth must exceed the CF bandwidth to generate a CF LFE Swap error The choices are 1 3 10 or 30 seconds Digital Input Has No Signal If Values Repeat For More Ihan Sets the number of samples in a row that must have the same value to generate an error The choices are 16k 32k 64k or 128k Downmix Compatibility settings panel amp Downmix Compatibility Downmix Parameters LFE Gain Downmix CF At Downmix Surrounds At Use Downmix Gains Compatibility Analysis Downmixed Signals In Error If Within Each Octave Level Changes By At or Above 250 Hz Tete 4 0 kHz For Longer Than 3 sec LFE Phasing Error If Level Changes By For Longer Than 68 The Downmix Compatibility settings panel sets the downmix parame ters and the thresholds used for compatibility checking It controls the downmix gains used for deriving the downmix channels These down mix channels are used for both the meter displays an
85. udio Metadata Other Errors DC Input 1 DC Input 2 DC Input 3 DC Input 4 DC Input 5 DC Input 6 Temperature Alarms are the result of one or more error conditions Four alarms are available numbered 1 4 and each may have any combination of errors assigned to it When an error occurs it triggers any alarms to which it is assigned Iriggering an alarm results in actions based on settings in the Alarm Actions settings panel p 72 The Alarms settings panel has a column for each of the four alarms It has a row for each type of detected error Within each column checked boxes indicate the errors assigned to the alarm Signal Errors Under Level Enables reporting of under level errors Over Level Enables reporting of levels exceeding the specified operat ing level Clipping Enables reporting of channel clipping Hum Enables reporting mains hum errors Program Loudness Enables reporting of short term loudness exceeding the maximum allowed Integrated Loudness Enables reporting of integrated loudness being outside the allowable tolerances Downmix Compatibility Enables reporting of stereo and mono downmix compatibility errors Channel Swap Enables reporting of interchanged channels LFE Bandwidth Enables reporting of excessive LFE bandwidth Digital Interface Errors Input Connections Enables reporting of digital input link errors Group Consistency Enables reporting of cross channel format inconsis tencie
86. ull path to the log repository directory and serial num ber is the serial number of the Sentinel The serial number is displayed on the Sentinel front panel as the last 6 digits of the MAC address and in the Sentinel web interface on the status line of the main meter panel User Manual The backslash between the directory path and serial number is the system specific directory path separator On Unix based systems including Mac OS X you use a forward slash instead For example javaws wait Xnosplash http 209 180 174 206 logrepository jnlp open C Sentinel Logs 207745 Download schedules The Sentinel stores up to 25 hours of log data internally so a daily download will preserve all logged data However a shorter interval pro vides additional protection against data loss and interruptions Hourly downloads are a recommended schedule Scheduled download on Windows XP systems To perform scheduled downloads on a Windows XP system you create a bat file containing the download command as described above then create a scheduled task that runs the bat file You can place the bat file wherever is convenient The log repository directory is a reasonable choice The Scheduled Tasks control panel provides a wizard to create a scheduled task However a daily schedule is the shortest interval allowed by the wizard To set a shorter interval you need to edit the task once you ve created it To edit the task
87. w and display it in the same way as live readings through the Readings Timeline panel p 40 The downloaded data is available indefinitely limited only by storage limits and your archive policies You can download the logged data through the Sentinel s web interface for longer term storage You can also perform this downloading as a separate command independent of the web interface Repository organization The repository is organized as a sequence of daily log files stored in a single directory The directory can be located on any file system to which you have access local or on a shared server Each daily log files starts at 00 00 00 UTC midnight UTC time and is associated with a particular Sentinel This information is coded in the name of the file XXXXXX yyyymmdd0000 qa1 Where XXXXXX is the Sentinel serial number yyyy is year mm is month 01 12 and dd is day of month 01 31 For example the log file for sentinel 20C 148 for June 21 2010 would be 20C 148 201006210000 qga1 Repository access Log data downloading and log repository access are managed by a Java applet loaded from the Sentinel For this to work correctly you should have Java 1 5 0 or later installed on your system and you need to have Java applets enabled in your browser User Manual Log repository setup in the user interface To allow access to logged data you need to configure the Sentinel web interface with the location of the log rep
88. wser performance is continually improving and you will find the interface is most responsive with the latest browser versions similar considerations apply to your choice of workstation or laptop faster current generation systems will perform better Modifying settings The user interface is divided into two main pages The Chapter 4 Readings page p 23 initially visible displays measurement pan els The Settings page p 59 displays settings panels where you can view and modify settings On the left of each page is a navigation panel that lets you select which information panels are visible and lets you switch pages Briefly to modify settings you 1 Switch to the Settings page click Show Settings in the navigation bar 2 Unlock the settings click Modify Settings in the navigation bar respond to the security prompt with a blank username and your Sentinel s password audio is the default 3 Select panels and change settings as required 4 Save changes click Save Settings in the navigation bar 5 Return to the Readings page click Show Readings in the navigation bar AES digital audio connection The AES audio module provides two HD15 connectors for audio con nections The AES In jack accepts input from coded audio streams The AES In Out jack accepts discrete PCM input channels Installation 9 Coded audio input chan nels compatible with VGA monitor cable pinout 1 Input 1 2 Input 2 3 In
89. y Button appearance alternates between play and pause graphics If play is started within a defined programming segment it begins at the beginning of the segment m Skip backward button Moves current position to closest pre ceding beginning segment bound If the current position is at a beginning bound moves to the previous one does nothing if no bound precedes the current position If clicked while dis playing live or logged readings it pauses the display C Skip forward button Moves current position to closest follow ing beginning segment bound If the current position is at a beginning bound moves to the next one If no bound follows the current position it moves to the current time and resumes play of live readings Replaying of logged readings continues until it reaches a segment bound or the current time If replay reaches the current time it then switches to displaying live readings If it reaches a segment bound it pauses Pressing the play button will cause play to restart at the begin ning of the segment In effect there are two patterns for playing logged readings You can repeatedly play a defined programming segment Or you can work without setting up segments moving the current position and starting and stopping play directly User Manual A segment is an interval of time within the Sentinel s readings history Mea sured segments are cre ated in real time by the sentinel defined segments are
90. z 10 0 source imbalance 0 1 dB 20 Hz to 20 kHz gt 105 dB 20 Hz to 20 kHz gt 80 dB 20 Hz to 20 kHz Digital input output Input Format Output Format Word Width Connector A Sample Rate Connector B Sample Rate Cable Compatibility Auxiliary signals Connection LTC Input Auxiliary Inputs Control Inputs Alarm Outputs Miscellaneous Network Chassis Power Power adaptor User Manual AES 3 120 Q Balanced or 75 Q Unbalanced AES 3 75 Q Unbalanced 16 to 24 bit 4 AES 3 inputs 8 ch 1 AES 3 output on one 15 pin high density female D sub 32 kHz to 192 KHz each stream asynchronous to all others 1 AES 3 input selected from 4 AES 3 inputs on one 15 pin high density female D sub 32 kHz to 48 KHz Unbalanced inputs use VGA to BNC cable Balanced inputs use a custom DB15HD to 4 XLR 1 BNC cable available as an option 25 pin female D sub Balanced AC coupled 22 kO each side to ground 5Vpp max 6 Oto 2 55VDC unbalanced 340 ms sampling interval 4 2 per Loudness meter 0 6V low 2 7V high 5V max input 40 ms minimum width 20 ms debounce after last transition 4 open collector 24V 100mA max 1OBASE T Ethernet RJ45 with status LEDs 1 75 H 1U x 17 W x 7 D 8 9 cm x 54 2 cm x 17 8 cm 24V at 0 5 A max from external adaptor 100V 120V 240V 50 60 Hz 15W Warranty Qualis Audio warrants its instruments to be free from defects in mate rials and workmanship for a period of three 3 years f
91. zontally arranged fre quency domain view makes such distinctions immediately evident Calculation of losses by frequency also simplifies application of error conditions to the data The Downmix Compatibility settings panel p 68 provides settings that control what downmix measurements consititute an error Comparisons may be limited at both high and low frequencies and the amount of loss considered acceptable may all be set along with a minimum time that the error must persist before being reported Readings page 33 Status bar The status bar displays health and activity status indicators Sentinel identifi cation current time SN 200148 06 Feb 11 13 36 52 PST 1 Network status icon 4 Real time clock date 2 Log repository status time timezone and sta ICON tus icon 3 Serial number 5 Linear time code and status icon Status icons are green or hidden when there are no problems yellow to indicate a warning and red to indicate more serious conditions If you move the cursor over a status icon a detailed description of the status condition will be displayed The log repository status icon is animated with a moving dot when data is being downloaded from the Sentinel to the repository When the user interface is displaying live readings the displayed time and linear time code are the latest values reported by the Sentinel When paused or displaying logged data they are recorded values that indicate the time at

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