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1. Figure 3 9 4 The ERGO Installation Wizard will start Click Next Figure 3 11 Figure 3 10 6 Click Continue Anyway Figure 3 12 E KRK ERGO Software Setup Welcome to the KRK ERGO Installation Wizard Software Installation This wizard will guide you through the installation of KRK The software you are installing has not passed Windows Logo testing ERGO software to verify its compatibility with Windows Tell me why this testing is important It is recommended that you close all other applications before starting Setup This will allow necessary system i Continuing your installation of this software may impair or files to update without having to reboot your computer destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the software vendor for software that has passed Windows Logo testing Click Next to continue Continue Anyway N STOP Installation Figure 3 12 Figure 3 10 7 Please plug in your ERGO now 16 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 2009 3 05 PM Page 17 8 The Found New Hardware Wizard will appear Select No 10 Click Finish to close the wizard Repeat 8 10 if necessary no this time and click Next Figure 3 13 Figure 3 15 Found New Hardware Wizard Found New Hardware Wizard Welcome to the Found New Hard
2. Tighter bass e More definition among instruments ERGO s goal is not to make the mix sweeter but to make it more accurate If you don t think you are hearing something finish the mix and see how it translates to other environments This is proof that ERGO is working If you are still not hearing what you believe is an accurate mix you may have problems with your monitors so get a pair of KRK monitors If you have any questions please read our FAQ s hito www krksys com product_ergo php or contact our Technical Support Team Tel 1 954 316 1580 option 3 Fax 1 954 316 1590 E mail service krksys com MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 37 The Calibration Mic level is not loud enough e Turn up the volume on your speakers The speakers need to excite your room in order for ERGO to measure it accurately Turn up the volume on ERGO The volume control should point to the word Volume This is the O dB point for the volume control installed ERGO as a FireWire device and now my other XYZ FireWire interface is gone This should not happen on Macs since the Mac OS can aggregate or combine multiple devices into a single interface Windows users have a couple of options Windows systems can only have a single ASIO device Use your main ASIO device when tracking and switch to ERGO ASIO when mixing down Take a SPDIF or analog out fr
3. 1GB RAM 10 MB hard disk space 800 x 600 monitor resolution or higher 4 or 6 pin FireWire port 6 pin port required to FireWire to supply power to ERGO AC outlet for ERGO power supply if power is not supplied via FireWire Mac 10 4 x is supported using Apple FireWire driver 2 2 0 1 6 Acoustic Environments Room Correction and ERGO 1 6 1 It s not your speakers it s your room Most studio monitors are created to be flat and precise and to be used in listening rooms with optimized dimensions and acoustic treatment However most home or budget studios are placed in less than ideal acoustic environments This means that the actual performance of your monitors is highly dependent on the acoustics of your listening room In fact the perception of your mix will change based on where you sit while monitoring and the speaker s placement To put this into perspective extensive measurements in different rooms show that even when a high end system is placed in a well controlled room peaks and dips between 10 to 20 dB in the frequency response are more the rule than the exception Refining speaker design with the goal of creating a linear sounding audio system by improving the linearity of each component 0 2 dB doesn t actually help much In addition it is obvious that even if the greatest of care is taken over tweaking the system with cables interconnects power stabilizers etc none of that will never compensate fo
4. KB 256 Driver Mode Dithering Full Chase Lock Best when chasing to MIDI time Use Multiprocessing Engine code vind ista Timing Offset msec 0 000 F Play Effect Tails After Stopping C Always Open All Devices Remove DC Offset During Record Configuration Settings Record Pre allocate File Edit Config File seconds Fade On Start milliseconds Reload Config Settings Fade On Stop Reset Config To Defaults milliseconds Record Latency Adjustment samples Device ERGO ASIO 2 in 2 out 4 Manual Offset i Use ASIO Reported Latency 64 Figure 8 This should get things up and running If you experience audio dropouts or weirdness check the Cakewalk site for information on how to optimize your system to minimize audio artifacts Existing SONAR Installations If you have a working SONAR installation then the recommended way to use ERGO is in SPDIF or Analog Input modes Just insert ERGO between your current monitors and your audio interface Use ERGO s FireWire drivers only for running the calibration software Once you have calibrated the system you can uninstall the FireWire drivers or disable them using the Windows Control Panel MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 35 Ableton Live 8 3 If this is a new installation and ERGO is your only FireWire interface set Ableton for ASIO mode by
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6. ERGO Installer i W Introduction 144 Welcome to the KAK ERGO Software Installation Program You will be guided through the steps necessary to install this i software Figure 3 18 To check that everything was properly installed go to Start gt Programs gt KRK ERGO Figure 3 19 f 11 meoca enas i ERO contra Pane n Pe Favortes gt da Ureta eGo Figure 3 21 User s Minua Figure 3 19 18 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 47 999 3 05 PM Page 19 3 Select the volume where you want to install ERGO and click Continue Figure 3 22 a Install KAK ERGO Select a Destination Select the volume where you want to Install the ERE ERGO sofware fis k Macintosh HO 319 GA 658 GS total i Ve oa hel F L a installing this software requires 11 6 MB of space T t Ji You haw chasen ta install this sofhaare on the volume l Macintosh HD f a Md _ gren GoBack _ Continue Figure 3 22 ras 4 Click Install Figure 3 23 Install KAK ERGO Standard Install on Macintosh HD Intraduction This will fake 11 6 MB of space on your computer Click Install to perform a standard installation of this software on the volume Macintosh HD Change Install Location 1 install Figure 3 23 5 The software was successfully insta
7. If you are currently using an ASIO driver on a PC use ERGO in SPDIF Digital mode or Analog mode unless you are sure your system can function properly with multiple ASIO drivers If you want to add ERGO to your current PC DAW hardware setup Use WDM mode which supports multiple hardware devices Please remember this set up is the least desirable it terms of system performance versus ASIO mode Mac Multiple FireWire interfaces on Apple machines For Mac OS 10 5 or greater you can use FireWire with ERGO even if you have other FireWire audio devices ERGO has been designed to provide maximum flexibility when used in a DAW environment Due to driver limitations on both Mac and PC platforms we provide the following guidelines to ensure that your DAW experience is trouble free 6 1 Scenario 1 have a rockin DAW If your DAW is currently set up so that your recording hardware works great and everything is routed use ERGO in any mode but FireWire mode Why Because if you are using a PC your DAW is probably using an ASIO driver with your recording hardware In most cases only a single ASIO driver can be enabled in PC systems Using ERGO s ASIO driver will effectively disable your DAWs recording hardware so do one of the following e If your current hardware has SPDIF Out take this SPDIF Out and connect it to ERGO s SPDIF In Set your main mix bus in your DAW to use the SPDIF outputs that is your main L R Outs
8. perfectly solve the problems at the listening position MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 6 The ideal response is flat and without reflections is a statement you ll hear if you ask people what the perfect sound would be for them However for various reasons it is not ERGO s goal to do this Instead ERGO is focused on making the room sound right reflections and alll 1 6 3 5 why not flat and without reflections We are used to listening to music inside a room Listening to music outdoors is rarely satisfying as it is missing something bass and impact In other words what we define as the generic in room bass enhancement sounds natural to us which is precisely why you shouldn t compensate for this Secondly listening to a speaker with a flat in room power response sounds very bright Measuring the direct on axis response will look flat but at the listening position the sound will roll off towards the high frequencies due to distance directivity off axis listening general high frequency absorption and reflections in the room Last of all reflections are a big part of how we determine directionality and ambience That is if there are no reflections a lot of the 3 dimensional information would be lost If you are trying to simulate how something will sound in a given position in a room you need to simulate a minimum of 100 000 reflections otherwise it j
9. place that is energy and processing is not wasted by measuring the spaces in between the analysis frequencies Why go to all of this trouble Because traditional 1 3 octave measurement and correction three frequencies for each doubling of frequency is not sufficient for room correction Room correction needs great analysis and powerful processing both of which ERGO delivers 3 5 ERGO with RoomPerfect is the Solution In our quest for the best possible components to power ERGO s Room Correction technology KRK licensed RoomPerfect from Lyngdort Audio Why Lyngdorf Because they are the best and they solved the problem with getting 3 dimensional Room Knowledge in a very unique way By combining global measurements room positions with measurements at the listening position up to 8 corrected listening positions can be calculated The RoomPerfect system combines information about the listening position with information about the energy transport into the sound tield in a completely new and innovative way The measurement at the listening position holds information about the listener s access to the sound tield while the room positions hold information about the 3 dimensional sound tield in the entire listening room And so perfect sound is rendered regardless of your listening room speaker position and listening position In fact the vast amount of information gathered about the sound tield allows you to enjoy the benefits of
10. pointing to the Options menu in the toolbar and selecting Preferences When the screen pop up window appears select the Driver Type pull down and select ASIO Figure 8 1 Preferences ASIO ERGO ASIO Y 44100 000 JoB Hz Figure 8 1 In Audio Device select ERGO ASIO From here you can choose sample rates set the buffer sizes using the Hardware Setup button and set the Input and Output Configs to your preference stereo or mono channels 35 8 4 Nuendo Access the Device Setup window and select VST Audio System in the Devices list in the left pane of the screen Figure 8 2 Figure 8 2 Select ERGO from the ASIO Driver menu Then select the ERGO driver from the Devices pane To open the control panel in Windows click the Control Panel button Using Mac OS X access System Preferences from the Apple menu or from the Dock If you re using the Mac s built in audio hardware you can use the Sound Control Panel in System Preferences for your settings However if you re using ASIO audio hardware click the Control Panel button Click Apply and then OK to close the dialog box If you do not see your specific DAW described please refer to your DAW s User s Manual especially the chapters related to Hardware Sottware configuration Audio Drivers selection etc You may also check http www krksys com product_ergo php for updates iC MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBUR
11. room correction in any spot in the room You will see and hear a system with all required knowledge and operation already embedded in it a smart system MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 999 3 05 PM Page 15 RoomPerfect can derive information about Room acoustic properties and modes peaks and dips in the room e Power response throughout the room e Loudspeaker directivity e High frequency roll off e Characteristics of low frequency roll off From the acquired measurements RoomPerfect processes the information and sets up amplitude targets and limiters for the different filters in an automated process The most challenging task for a room correction system is the automated correction of an already near ideal system but RoomPerfect is capable of solving even this challenge and compensates using minor corrections In the ERGO system RoomPerfect automatically identifies the optimal target curve from the information in the measurements and everything after that is controlled by the calibration software ERGO Cal In a new ERGO installation the software guides you through the set up sequence indicates when to move the microphone monitors the quality of the measurements and continues the process until the necessary information is retrieved and the filters for global and focused correction can be calculated Visit htto www lyngdorf com
12. source as follows 1 lf ERGO detects a SPDIF clock it automatically selects the SPDIF Input as its source If ERGO has detected a SPDIF clock but you want to use the Analog Inputs then you must use ERGO s control panel to select the Analog Inputs e If ERGO has detected a SPDIF clock but the SPDIF Input is not working then ERGO was started in Analog mode Use the ERGO Control Panel to select the SPDIF Input e f the SPDIF Input is not working ERGO is probably not locking its clock to a SPDIF clock Check your cables and the audio output selection in your DAW application 2 If ERGO does not detect a SPDIF clock it automatically selects the Analog Inputs as its source 3 4 Test Signal and Measuring Techniques To get the necessary Room Knowledge ERGO relies on a new way of measuring the room Using traditional test signals such as pink noise normally means a trade off between signal to noise ratio SNR and frequency resolution Long analysis windows lead to high frequency resolution but poor SNR due to the low number of averages But using multiple pure tones means long analysis windows 5 5 seconds for low frequency test signal leading to both high frequency resolution 0 2 Hz AND an excellent SNR due to very narrow analysis bandwidth 14 in the frequency domain something which is almost insensitive to normal broadband background noise ERGO generates energy at the very same frequencies where the analysis takes
13. volume adjustments The first ensures that you have the volume set so that ERGO can hear audio This is typically at the 10 o clock volume position During the second volume adjustment ERGO measures the sound pressure from your speakers The level is moderately loud If you feel that the volume is too high or that your speakers may be at risk and ERGO is telling you that the volume is too low accept the current level by following the instructions provided in the screen ERGO will use this volume level and attempt to perform a measurement In the first volume adjustment the following screen will inform you whether the volume level is acceptable or requires adjustment Figure 5 10 Turn Volume up slowly Figure 5 10 If the message displayed indicates that the volume is too low or too high adjust the big Volume knob until you get the Volume Ok message typically at 10 o clock Figure 5 11 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 47 999 3 05 PM Page 25 Press ENTER to continue Figure 5 11 In the second adjustment the volume is system dependent 5 2 9 Focus Position Measurement The following window prepares you to take your Focus Position Measurement Before to click Enter read the instructions below Make sure that the height and orientation of the microphone correspond to your typical listening height and direction as illustrated below Do not block the line of sight between th
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15. 9969 9969966999 6996996969 9999 9969996999 669 6699999699 9999999 999 9999999999 99 999 9999999999 999699 9999999 99 99 6999999 99999 9999 99999 99 999 69 999999 999999 99 99999 9999 99 99 999 9999 9999 9699 99 99 9999 999 99 9999 99 999 99 9999 99 999 99 9999 99 999 999999 999999 9999999499 99 99999 999999 99999 99996999 99999 9999999999 9999999999 9999999 99999999 99999499 99999 9999999999 99999 99 9999999999 9999999999 999969 999 9999 99 99 999 9999 99 99 99699 99 96999 99 969 999999 999999 9999999 9999996699 999 99 999 9999999969 99999 9969999999 9699699999 99 99 9999999999 99969 9999999 9999999999 999 99 99 9999 9999 99 9999 99999 99999 999 9999 99 99 999 9999 99 99 999 99999 99 9699 999999 9999699 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 009 3 05 PM Page 44 Copyright 2008 by KRK Systems LLC ERGO is a trademark of the Stanton Group RoomPerfect is a trademark of Lyngdorf Audio All other trademarks are property of their respective owners who are in no way affiliated with KRK Systems or KRK products All information included in this User Manual is subject to change without notice http www krksys com 1 954 316 1580 LITK00045 4 08 2009
16. ED LOCK PRO CONSUMER CROSSOVER SAMPLE RATE Figure 4 3 To obtain more information about buffer size settings please refer to your DAW s User s Manual especially the chapters related to Hardware Software configuration Audio Drivers selection etc 21 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 22 Do not plug your headphones yet Double click ERGO Cal icon located as shortcut in your desktop or within the Applications folder Once you initialize ERGO Cal the following screen appears Figure 5 Figure 5 ERGO is ready to measure your room Figure 5 1 Press ENTER to begin Figure 5 1 Follow the prompts that appear as you step through the program and click Enter 22 5 1 Set Up re you plugged in After you ve plugged in your speakers and calibration mic click Enter Figure 5 2 Press ENTER to continue Figure 5 2 re you using ERGO in Speaker or Subwoofer Mode This screen asks if you re going to use ERGO in Subwoofer mode where you have a sub connected directly to ERGO Choose YES or NO If NO go to Speaker mode If YES go to Subwoofer mode Figure 5 3 Figure 5 3 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 23 5 2 Calibration Overwriting measurements helps ERGO clear its thoughts and prepares it to take new measurements Selecting CANCEL sends Speaker Mode you to the initial wind
17. ERGO work ERGO takes a stereo audio stream from the analog or digital SPDIF or FireWire domain and processes it though a 96 kHz room correction algorithm All incoming analog audio is sampled at 96 kHz while incoming digital audio is sample rate converted up to 96 kHz for processing If incoming audio comes in over FireWire the processed audio is converted to reflect the output frequency of the ASIO driver up to 192 kHz In Digital Input mode the output frequency and the audio going to your monitors is going through digital to analog converters fixed at 96 kHz sample rates ERGO s architecture provides the best audio quality while maintaining compatibility with existing systems In fact the audio converters used in ERGO are the same as those found in multi thousand dollar audio workstation hardware Rest assured you can t go wrong with ERGO Visit www krkergo com videos php vid intro to watch ERGO s Video Introduction 1 4 Input Modes ERGO has 3 Input modes Figure 1 e FireWire Audio Input e Analog Input e Digital Input Speakers BSub sf 3 Power Firewire Calibrate 119 SPDIF Figure 1 4 1 FireWire Audio Input In this mode ERGO looks like an ASIO audio device under Windows or as a Core Audio device on a Mac To ensure your monitor or mastering mixes will be correctly compensated for your listening environment it is recommended that you select ERGO as your DAW main Left Right out
18. If selecting Subwoofer mode use this section to adjust your crossover settings Tip Remember that in a speaker crossover network the crossover frequency is the frequency point that represents the upper or lower range limits of a given speaker driver In a two way speaker system the crossover frequency would be the point where the low frequency driver begins to roll off and the high frequency driver starts to cut in 20 ERGO Info This is a read only display that indicates the current system firmware revision DSP firmware revision and your FireWire ID SPDIF Status This display lights to indicate ERGO s sample rate Audio Settings Use the associated pull down boxes to select ERGO s sample rate Figure 4 1 and ASIO buffer size Figure 4 2 44 1 kHz 48 0 kHz 88 2 kHz 96 0 kHz 176 4 kHz 192 0 kHz Figure 4 1 Note Reducing the buffer size can decrease the amount of latency while monitoring and recording audio Increasing the buffer size can reduce and or eliminate some audio artifacts such as pops and clicks while recording Figure 4 2 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 642009 3 05 PM Page 21 Mac In the Applications folder double click the ERGO folder and then double click ERGO Control Panel to open it Figure 4 3 enhanced room geometry optimization sae cinta DSP FIRMWARE 108 FIREWIRE ID 00454647 A SUB S SAMPLE RATE UNLOCK
19. MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 41820 9 3 05 PM Page 1 enhanced room geometry optimization l i i Lil user manua lf 1 Introduction 3 1 1 The idea behind 3 1 2 ERGO A Complete 5 3 1 3 How does ERGO work 4 bA poir Mod AN 4 1 4 1 FireWire Audio 4 1 4 2 Analog Input ccccccccceessseceeeessseeeeeeees 4 t43 Digital 4 1 5 System Requirements 5 1 6 Acoustic Environments Room Correction and ERGO 5 1 6 1 It s not your speakers it s your room 5 1 6 2 Room Correction 5 1 6 3 So why not flat and without reflections 6 2 ERGO Panels and 7 2 1 Back Panel and 7 8 BES 9 3 Setting up ERGO and your Mixing Environment 10 3 1 Installing your Monitors 10 3 2 Positioning your 5 1 3 3 Connecting your System What goes where 12 3 4 Test Signal and Measuring Techniques 14 3 5 ERGO with RoomPerfect is the
20. NUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 13 Setting Up a 2 1 System with Two Full Range Monitors Setting Up a System with Two 2 1 Configurations Figure 3 5 Figure 3 4 Figure 3 4 Figure 3 5 Setting Up a 2 2 System Figure 3 6 Configurations There are several possible ERGO configurations These all depend on how you want to use ERGO in the studio What s the same between all of these is that all of the configurations end with a pair of powered speakers or an amp and speakers connected to the A outputs on ERGO What s different are the various input options These depend on your studio set up for example e 1 set of speakers FireWire Audio Input 2 sets of speakers SPDIF or Analog Input 2 sets of full range speakers FireWire Input e 2 sets of full ranges speakers SPDIF or Analog Input e 2 1 system FireWire Audio Input e 2 1 system SPDIF or Analog Input Figure 3 6 iC MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 14 Using Analog L amp R and Digital SPDIF Inputs Here are a few tips to keep in mind when dealing with Analog and Digital Inputs with ERGO When using ERGO as a soundcard connected via FireWire to your computer the FireWire audio stream is automatically selected as the input source If you are in Standalone mode no FireWire connected and using either the SPDIF Input or the Analog Inputs ERGO selects the audio
21. RAARAMBURU 216 x 203 mm 4009 3 05 Page 9 Focus Global ERGO has two modes of operation Focus and Global In Focus mode all of ERGO s processing power is correcting the focus sweet spot or mixing position correcting time and frequency domain problems Use this mode when mixing your tracks In Global mode ERGO s processing power is correcting a much larger area so it is only fixing frequency related problems Use this when you want an audience to hear the corrected room When the Focus Global button is depressed for two seconds ERGO enters Bypass mode indicated by the LED flashing In Bypass mode audio is passing straight through with no correction being performed Volume knob This big Volume knob adjust ERGO s volume Also it will allow you to adjust ERGO s volume to a proper level so it is adequate for the calibration process 2 3 Side Panel Figure 2 2 Figure 2 2 Headphone control On the right hand side of ERGO is a rotary knob that controls the headphone volume Why the right hand side you may ask Because 90 of the world is right handed and because most mastering control room sections in the studio are located on the right hand side and because the main Volume knob for ERGO is on the right hand side of the unit making your hand naturally rest on the headphone volume knob If ERGO is used in FireWire Audio Input mode the headphone output is a separate audio stream So your DAW can send a moni
22. This allows you to use ERGO s awesome D A converters eliminates any driver hassles and provides the ultimate in compatibility ERGO s SPDIF Input can handle incoming sample rates from 32 96 kHz There are no settings to change on ERGO ERGO will automatically figure out that SPDIF is connected and begin processing signals from that port By the way if you have Pro Tools this is the preferred connection route MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 32 e What if you don t have SPDIF Out Just plug the outputs that are currently connected to your monitors into ERGO s LINE Ins then plug your monitors into the A speakers That s it ERGO s high performance A D converters will meticulously transform your signal into beautifully pure digital data ERGO will work its magic and its amazing D A converters will deliver the sonic goods in all their room corrected glory Mac users Mac OS versions greater than 10 4 allow for device aggregation that is you can make lots of different audio devices look like one big audio device If you have a rockin DAW you may want to abide by the adage If it ain t broke don t fix it and use one of the hook ups mentioned above However when using a Mac you can run ERGO in FireWire mode and it can live with your current DAW hardware In this case simply set the ERGO driver to be your main bus outputs in your DAW and plug
23. U 216 x 203 mm 4009 3 05 Page 36 If you re having trouble with ERGO check out these tips Power LED knob LEDs do not illuminate when power switch is turned on e FireWire port is not supplying enough power for ERGO Use the 12VDC power adapter to power up ERGO e Is power switch REALLY turned on Check it again while using the external adapter e Is the AC outlet working ERGO Cal does not run e Driver is not installed properly e ERGO is not plugged into a FireWire port Power is not applied to ERGO Microphone does not work You need to have the Calibrate switch On the back of ERGO pushed in in order for the mic to work Make sure the Calibrate LED on the Front Panel is illuminated e Use only the KRK mic Don t plug in any other mic for calibration If you lose your KRK mic you can buy a new one from KRK customer support at 954 316 1580 ERGO Cal asks for lots of measurements e That s OK It can take between 3 and 9 measurements before you get to 90 or greater Room Knowledge 36 Room Knowledge never gets to 100 e As long as Room Knowledge is 90 greater your mixes will sound better don t hear a difference between ERGO in bypass and processing modes Your room may already be very good so ERGO isn t doing much This is very unlikely however ERGO s effects can range from subtle to extreme so there should be a difference In particular listen for the following e Improved imaging
24. ansient responses are all related to this concept In fact the reverberation of a room can be thought of as its impulse response I O Short for Input Output A port or in line control for channeling the flow of signal data to and from a device kHz The Abbreviation for kilohertz 1 000 Hz LED See light emitting diode Room Correction Score Is a measure of how much processing is being performed in the room correction filters The room correction score for a specific RoomPerfect filter can be viewed by pressing the Info button from the initial ERGO is ready to measure your room screen Room Knowledge Indicates how much information has been gathered about the room In normal rooms a listening position measurement and a minimum of 3 4 additional measurements are adequate to get a Room Knowledge of 90 or better regarding the room s acoustic properties When sufficient Room Knowledge has been obtained target curves focus filters listening position and global filters general room filter are generated automatically and stored in ERGO 41 Sampling Frequency The number of digital snapshots or samples taken of an analog audio signal in one second necessary to produce a digital interpretation of the original signal The industry standard sampling frequency for CD quality audio is 44 1 kHz Also referred to as Sample Rate THD The abbreviation for Total Harmonic Distortion WDM Windows Driver Model A driver mode
25. bration process Nofe It is recommended that you use the mic supplied with ERGO for room calibration ERGO supplies a 15V phantom power source to its microphone and using other mics for calibration may result in poor room analysis and improper correction filters Line Inputs L amp These balanced unbalanced audio inputs are used either as inputs from your existing audio interface or as recording inputs from a mixer You may want to use the Analog Inputs for one of the following reasons MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 8 e You have a complex or well established FireWire contiguration on your computer and don t want to interfere with it e You are using an analog console and mix outside of the box Calibrate button You need to press this button to proceed with the Calibration process Speaker A and B Sub Outputs These balanced unbalanced outputs are connected to your powered speakers or to an amplifier and speaker combination These are line level outputs It is recommended that balanced cables and connections be used to ensure the best audio quality Headphone Output Connect your 1 4 inch headphone here 2 2 Front Panel In the Front Panel Figure 2 1 ERGO features 3 Status LEDs Clip IO FireWire and Calibrate 3 Buttons A B Sub and Focus Global 1 Volume knob Figure 2 1 So lets read their description Status LEDs Clip T
26. breeze All you have to do is place the microphone at different positions in the room and in different orientations It is important to perform well spaced measurements to get a covering image of the acoustical properties in the room that is varying positions heights and orientations of the microphone For optimal room correction make sure that the measurements are 1 Performed more than 1 m 3 ft away from the loudspeakers 2 Not performed behind the loudspeaker 3 Taken at a minimum of 50 cm 1 5 ft between each measurement The following illustration shows the steps listed above Figure 5 19 DO NOT take measurements from behind the speakers Take measurements gt 1m 3 feet from the speakers a Position 1 Position 2 Focus Listening Position Position 4 Position 3 Take room position measurements from random locations in the room that are at least 1m 3 feet apart Figure 5 19 Once you ve placed your mic in an acceptable location you may begin This process is repeated at least three times and until the Room Knowledge reaches 90 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 28 5 2 5 Room Correction The room correction score is a measure of how much processing is being performed in the room correction filters To some extent this reflects how audible the correction is However the same amount of processing can sound very differen
27. called a cut off frequency Frequency The rate or speed at which an audio source generates complete cycles in one second The number of cycles that occur in one second is call hertz Hz Frequency Range The range of frequencies over which an electronic device delivers its best performance or over which a sound source will produce substantial energy Frequency Response A plot or graph of frequencies that an audio device such as a mic amplifier or speaker can accurately reproduce within stated parameters or conditions Harmonics A tone along with whole number multiples of the fundamental tone that distinguish the pitch of a particular instrument or sound Harmonic Distortion The occurrence of harmonics in the output signal of a playback device or amplifier which were not present in the original input signal Hertz Hz A unit of frequency measurement used to express the number of complete cycles occurring in a one second interval Abbreviated as Hz MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 41 Impulse Response A lot of information about a device can be determined by how it reacts to a particular impulse Impulse response could be defined as a measure of the time domain response of a system input to output to a very brief transient signal at its input The Fourier transform of this time domain waveform is the frequency domain transfer function So frequency phase and tr
28. characteristics is equally important to help compensate for room irregularities and achieve the highest sound accuracy A room that is heavily dampened would typically require a slight high frequency boost Likewise reducing the high frequencies can alter a reverberant room Placing the monitor close to a rear wall side wall or a corner will reinforce the low frequencies Generally speaking if you move them two to three feet away from walls and corners you ll hear less low frequency interaction excluding any interaction with the mixing console Summary Button illuminated FOCUS Button not illuminated GLOBAL Button flashing BYPASSED 3 2 Positioning Your Monitors Positioning your monitors correctly in the studio is critical to their performance Typically they should be placed so that that the listening position is fully covered with all monitors resting on the same horizontal plane To test a monitor for its imaging capability playback a song that includes acoustic instruments to tully represent the entire sound spectrum You can adjust the angle of each monitor by listening for dead spots Keep in mind changing the angle or position of a monitor will change the way that you perceive your music So lets analyze a few examples Two Channel Set Up Near Field Configuration In a control room situation the monitors are often times placed on the meter bridge or in a close field listening position In
29. cus mode ERGO is correcting for time and frequency domain problems However in Global mode ERGO is only fixing frequency domain problems This makes sense considering that in Global mode ERGO s processing power is correcting a much larger area so is almost impossible to correct both time and frequency issues in this scenario MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 38 While using ERGO in WDM Mode I m not able to selecta To contact KRK Service Support send an e mail to buffer size value from the Control Panel service krksys com or call us at 954 316 1580 e That is the expected behavior To manually select a buffer size select ASIO from the Control Panel having problems loading the necessary ERGO drivers I m using a Mac OS X running AppleFWAudio2 1 What should do Until a permanent fix is released follow these instructions to install AppleFWAudio2 0 1 e Log onto http developer apple com sdk and download the FireWire SDK 24 or the latest available version for Mac OS X A file will download called FireWireSDK24 dmg Double click this file From here double click the FireWireSDK23 pkg file This will launch the installer Follow the instructions and prompts that appear Once installed select Macintosh HD Developer FireWireSDK23 FireWireComponents FireWire Audio 2 0 1 and launch the installer by double clicking AppleFWAudio 2 0 Ifc1 e8 pkg Follo
30. e microphone and the loudspeakers Each measurement is comprised of a low and a high frequency measuring signal first in the left and then in the right channel Figure 5 12 gt 4 4 Figure 5 12 25 The length of each measurement depends on a combination of the measurement volume and the background noise in your local environment Typical measuring times for the low and high frequency measuring signals are 25 and 5 seconds respectively If an error message is displayed Make any required corrections to your set up and follow the prompt to retry the measurement Focus Position Measurements must be performed more than 1 m 3 ft away from the loudspeakers in a X Y orientation and must not performed behind the loudspeaker Also do not sit in the listening position while Focus measurements are being taken Now that you ve read the information above click Enter and follow the prompts to calibrate the volume level at your focus position Figure 5 13 Press ENTER to continue Figure 5 13 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 26 The Volume level calibration message will appear Figure 5 14 Tip If you see the Clip LED light up during this step your volume level is probably just fine and you should use this volume level regardless of what ERGO displays Figure 5 16 Press Enter to continue Please wait Figur
31. e 5 14 Press ENTER to continue If the level did not fall within an acceptable parameter ERGO Figure 5 16 will notify you A possibility is that your speakers do not produce a high enough SPL to register but the calibration can still be performed Figure 5 15 Then the Measuring focus postion message will appear Figure 5 17 Adjust volume and press YES to try again Please wait Press NO to accept the level Figure 5 15 Figure 5 17 In this instance select NO at the ERGO Cal screen to accept the level that was originally measured and then click Enter 26 iC MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 27 If the Focus measurement was Ok ERGO will instruct you to place your measurement mic in Room Position 1 then click Enter Figure 5 18 Place microphone in room position 1 Press ENTER to continue Figure 5 18 If there was a problem with the measurement ERGO will display the information and instructions for the next step 5 2 4 Room Position Measurements The number of room positions needed depends on the value of Room Knowledge If it is below 90 after the third measurement ERGO Cal automatically includes extra room measurements until a Room Knowledge of 90 or better has been achieved The remaining measurements should be taken from random positions in the room with random orientations of the microphone Choosing these positions and orientations is a
32. e button Figure 5 25 Please release to continue Figure 5 25 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 642009 3 05 PM Page 30 This will take you to ERGO Cal s initial screen You re done Figure 5 26 Press ENTER to begin Figure 5 26 30 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 31 You probably know the following tips but it would be a good idea to read them as a refresher Generic DAW tips Turn Off your speakers before turning Off ERGO Always turn Off your computer when unplugging ERGO You must shut down your computer any time you wish to connect or disconnect ERGO Failure to do so may cause damage to your computer or ERGO s FireWire ports Foolproof set up The easiest set up is already having a working DAW FireWire and or USB interfaces But if you re not so lucky then the next easiest set up is either Analog mode where you provide your left and right mix outputs to ERGO s Analog Inputs and extremely high performance digital converters or Digital mode where you use the SPDIF output of your DAW hardware and connect to the SPDIF Input of your ERGO system Reboot and power cycle your system If after configuring your system you find something is not working correctly reboot your computer and turn the power off then on to ensure that all changes take effect PC If you are using PC ASIO hardware now
33. his LED illuminates when the incoming audio signal is 3 dB from full scale input indicating a likely clip condition This is used during the calibration process and when the incoming main output signal is inserted into the Input Line In jacks on the back of ERGO This is also used when using ERGO as a FireWire recording interface to indicate excessive signal coming in from the line level device mixer keyboard etc IO FireWire This bi color LED illuminates red when power is applied and green when a valid FireWire connection is detected Calibrate The Calibrate LED illuminates when the Calibrate button is pressed on the back of the ERGO unit While in Calibrate mode the Line In signals are no longer active and the MIC input is active Buttons A When applying one input use the A input and press the button to enable When the button is unlit there is no audio passing through B Sub When connecting a second input and you want to hear both A and B speakers press B Sub to enable this function Note The software control panel selects the speaker mode In default non Subwoofer mode only the A or B speaker can be selected ERGO is smart enough to make the A B buttons mutually exclusive Using ERGO it is possible to set ERGO up in Subwoofer mode In Subwoofer mode ERGO makes the A B buttons independent so that you can mute or enable the sub in conjunction with the A speakers MANUAL_ERGO B MANUAL_ERGO B Originator
34. hoices 5 If you want to use an input on ERGO to send audio to your DAW software you must choose ERGO under your Input options 6 Playback and recording main outputs and timing master if applicable should be set to ERGO ASIO A outputs 33 7 Open the Control Panel for ERGO and adjust the settings accordingly this is found in System Preferences on Apple computers 8 Some programs provide an option called Release Driver when Application is in the Background Choosing this option allows other applications to play back through ERGO even when your main DAW software is running in the background 7 2 Using ERGO in WDM Mode 1 PC users In your DAW software review the documentation that describes selecting your audio hardware 2 For your driver hardware set up make sure you choose WDM mode This can be called Driver Type or Drive Mode depending on the brand of software you are USING 3 From the device set up menus make sure you select ERGO from the audio output choices 4 If you want to use an input on ERGO to send audio to your DAW software you must choose ERGO under your Input options 5 Set your Playback and Recording Timing Master settings to use ERGO WDM A Outputs Open the Control Panel for ERGO and adjust the settings accordingly 6 Some programs provide an option called Release Driver when Application is in the Background Choosing this option allows other applications
35. issues just pure clean room correction goodness You ll get the benefit of ERGO s pristine audio performance with no degradation If your current audio hardware leaves a bit to be desired use ERGO Mac users stop reading here in ASIO preferred or WDM mode In ASIO mode you ll benefit from ERGO s low latency In WDM mode however you will be able to use multiple recording interfaces under Windows MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 33 Configuring ERGO Inputs and Outputs in Your DAW System ERGO inputs and outputs will appear as inputs and outputs in your DAW system Set up is described later in this manual Depending on your chosen application these ERGO inputs and outputs maybe labeled as ASIO WDM PC s or Core Audio inputs and outputs Mac s In ASIO mode ERGO s A outputs will be labeled ERGO ASIO A Outputs 7 Using ERGO in ASIO Mode Please read the following instructions 1 PC users Uninstall all other ASIO drivers for audio devices before installing the ERGO driver software 2 In your DAW software review the documentation that describes selecting your audio hardware 3 For your driver hardware set up make sure you choose ASIO mode This can be called Driver Type or Drive Mode depending on the brand of software you are using 4 From the device set up menus make sure you select ERGO from the audio output c
36. itial placement starts by measuring out a simple equilateral triangle all three sides equal in length with the apex at the center of the listening position as an overlay for the stereo installation In this configuration the Lett and Right monitors are each placed at a 60 angle equidistant from the listening position Figure 3 Focus Listening Position Figure 3 Mid Field Configuration This configuration is similar to the close field configuration It is normally used with larger monitors or when the monitors are too large or heavy for the meter bridge This set up has the potential for a larger sweet spot and better spatial imaging Make sure that the height of the woofer is above the height of the console Figure 3 1 Focus Listening Position Figure 3 1 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 47 999 3 05 PM Page 12 Adding a Subwoofer Begin by determining the best location for your subwoofer If possible the optimum set up would reflect that shown in Figure 3 2 however this set up may not be practical or possible in your room Once you have set up your monitors listen to program material that you know contains low frequency information If your subwoofer has a phase switch adjust the subwoofer to provide the highest frequency setting possible Flip the switch back and forth to find the loudest setting Then adjust the sub s low pass filter so that it works in con
37. junction with the satellite s high pass frequencies When you have finished readjust the level of the sub Figure 3 2 Subwoofer Bx ag I I T ee Ne or apy SS y A My P 1 7 I I I 1 i I N I F I I i i i C Focus Listening Position Figure 3 2 9 Connecting Your System What Goes Where Now you get to plug things into ERGO so please follow these steps Make sure power is Off at your monitors amplifier computer and ERGO s power switch is Off This is an important step Please follow it to ensure things go smoothly 1 Plug ERGO into your computer by connecting it to the FireWire port ERGO ships with a 6 pin FireWire cable that supplies both power and data If you are using a laptop that has a 4 pin FireWire cable you ll need an adapter cable to use ERGO 2 Plug in ERGO s Microphone adapter cable the XLR to 1 4 TRS cable that shipped with ERGO 3 Select your best XLR mic cable and plug it into the ERGO s XLR 1 4 adapter Make sure that the XLR mic cable is about the length of the longest dimension of your room 4 Connect the ERGO s microphone into the XLR mic cable and place it in your microphone stand Put this aside for the time being Setting Up a System with Two Monitors and One Sub Figure 3 3 joe E Figure 3 3 MANUAL_ERGO B MA
38. l based on the Windows NT driver model that is designed to provide a common architecture of I O services for Windows operating systems for specific classes of drivers This driver model is currently supported under Windows 98 Second Edition Windows Millenium Edition Windows 2000 and Windows XP WDM drivers provide multichannel I O MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 999 3 05 PM Page 42 9999999 999 99 99 999999 99 999 99 9999996999 99 999 99 999 99999 99 99996999 99999 9999 99999 99999 999999 9999999999 99 9999999999 9999999 9999999999 9999999999 9999 9999999999 99999 99999999 99999949 499999 9999999999 99999 99 99 9999999 99 99699 9499 99 99 999 999 99 99 99 99 999 99 999 99 9999 99 99999 9999 9996999 9999999999 999999 9999999999 9969999999 99 99 999 999 99 99 999 99 9999 99 999 99 999 99 999 99 9699999999 9999999999 9969996699 9699999969 9696999996 999 99 9699969999 6969699699 699 6696996999 99999999 99999 9999 99 99 999 9999 99 99 999 99 99 99 99 999 99 99 99 99 999 99 99 99 99 999 99 99 9 99 999 99 9999 999999 9999999 99999 999999 999999 99999 99 999 9999999 9999999999 99999999 9999 9999999 99999 9999949999 99499999 9999999999 99999 99 9999996999 9 9969999699 99 99 999 999 99 99 99699 99 999 99 999 99 9999 99 9699 99999999 9996 9999999999 9969999999 9966999699 9996999999 9996999999 9996999969 999 9969999999 99969 99969999 9999999999 99999 99 99999999 99 999499 9999 99 99 99 9999 99 99 99
39. lled Click Close Figure 3 24 Install ERGO Installation completed successfully A Introduction h Destination Select Installation Type Installation 5 Summary Install Succeeded if aw A 2 The software was successfully Installed Close Figure 3 24 To check that everything was properly installed go to your Applications folder and double click the ERGO folder Figure 3 25 AnA a ers pmm no n jii 6 clo Coca 2 age Denne d eee hj 4 8 sn Figure 3 25 The following icons will be included on it Figure 3 26 b meot DCG Costi Passi Liit p j mema iiki Cimu Figure 3 26 iC MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 20 This section describes ERGO s Control Panel including configurable parameters and system information PC Click the Start button and then point to Programs Point to KRK ERGO and then click ERGO Control Panel to open it Figure 4 SYSTEM FIRMWARE 1 14 DSP FIRMWARE 1 0a FIREWIRE ID 00454547 z um enhanced room geometry optimization A SUB S SAMPLE RATE UNLOCKED LOCK PRO CONSUMER CROSSOVER SAMPLE RATE ASIO BUFFER SIZE Figure 4 Speaker Mode Allows you to select to use only your A speakers A and B or A and Sub s referred to as Subwoofer mode Subwoofer Settings
40. ments ERGO will not let you store a room correction until Room Knowledge is at least 90 You may continue taking additional measurements to increase Room Knowledge which will result in a more accurate correction filter MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 29 Then click YES to store your measurements Figure 5 23 Store measurement YES NO Figure 5 23 So what did ERGO just measure 5 2 6 Room Knowledge Room Knowledge indicates how much information has been gathered about the room In normal rooms a listening position measurement and a minimum of 3 4 additional measurements are adequate to get a Room Knowledge of 90 or better regarding the room s acoustic properties Once Room Knowledge reaches this range ERGO can begin processing the room Additional measurements can improve Room Knowledge up to 100 With ERGO Cal measurements are analyzed in real time 29 Knowledge about the room is calculated and if the measurement positions have not gathered enough information you can take further measurements until there is enough information present for a proper analysis Figure 5 24 Please wait Figure 5 24 When sufficient Room Knowledge has been obtained target curves focus filters listening position and global filters general room filter are generated automatically and stored in ERGO The following screen will appear and prompt you to release the Calibrat
41. mplitier and loudspeaker is decreased meaning that less distortion and better headroom are achieved Taking energy out of the system also has another advantage since pumping less energy into the room means that room modes are less excited So you achieve a much more even power response across the room That is the differences between peaks and dips in the response are reduced dramatically In a case like this the room correction score will also be quite high since correction in the bass region is needed However the score number is not high because you have a poor system it s high just because you have chosen a loudspeaker position that improves the impulse response but then requires compensation for the increased efficiency in the bass region Try it out and see what works for you near wall or free space placement ERGO works in both cases The close field monitor reduces room interaction This can be compared to the conventional stereo configuration or the large monitor arrangement in a recording studio where sounds emanating from the monitor or reflecting off ceilings walls and floors greatly affect the sound quality MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 11 By shortening the path to the ear the close field monitor offers a tremendous amount of flexibility allowing the sound to become less susceptible to differing room conditions The ability to adjust the high
42. nator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 3 Thank you for purchasing the ERGO Room Correction System We appreciate your trust in us ERGO Enhanced Room Geometry Optimization is an exciting product that enhances the performance on any loudspeaker monitor system by digitally correcting your room s acoustic problems A few of ERGO s bells and whistles are High performance state of the art Digital Signal Processor for room correction and analysis e Mastering grade Analog to Digital and Digital to Analog converters Standalone correction No computer is required for room correction e Analog or Digital Inputs Interfaces e Large Analog Volume Control Built in speaker selector e Top notch RoomPerfect technology corrects phase and frequency problems ERGO Cal Software compatible with Mac and PC platforms Professional calibrated measurement microphone Considering that ERGO uses new technologies please refer to the glossary to get more information about any of the terms you are not familiar with 1 1 The idea behind ERGO There are a lot of great sounds out there whether they come from professional musicians or a regular Joe trying to unwind trom the stresses of life But there aren t always great rooms or studios to back up that sound ERGO was developed after years of listening to the same comments that mixes don t sound the same outside of the studio And true there are several other room cor
43. nberg is a cross platform multi channel audio transfer protocol It allows software to have access to the multi channel capabilities of a wide range of powerful sound cards Binary A digital numbering system based on two where data is ex pressed as combinations of O s and 1 s Bit A single unit of digital information expressed as a 0 or 1 Core Audio This is an ultra low latency high quality MAC compatible audio driver that is built directly in to the OS X operating system Decibel DB A unit of measurement for expressing sound pressure level SPL signal level and variation or differences in signal level Digital To Analog Converter A circuit used to change binary data that make up the digital audio signal into discrete voltage levels that approximate the original analog audio waveform Abbreviated as D A converter DSP An abbreviation for Digital Signal Processing Any signal processing done after an analog audio signal has been converted into digital audio Dynamic Processing Dynamic Signal Processing An signal processing system which automatically changes the gain to maintain a preset level ratio or relationship between the loudest and quietest passages of music 40 Dynamic Range The level difference expressed in dB between the loudest level and quietest level of a recording or live audio source Filter A circuit that removes or acts on certain frequency signals above or below a predetermined point
44. nstall the software automatically Recommended Q Install from 8 list or specific location Advanced Click Next to continue Figure 3 14 Figure 3 16 17 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 2009 3 05 PM Page 18 12 Click Continue Anyway Figure 3 17 Mac Hardware Installation 1 Unzip the ERGO Software folder by double clicking on it The software you are installing for this hardware Fig ure 3 20 KRK ERGO has not passed Windows Logo testing to verify its compatibility with Windows XP Tell me why this testing is important L Dewenloacle Continuing your installation of this software may impair or alai w destabilize the correct operation of your system either era Bel EH immediately or in the future Microsoft strongly recommends E DEVICES that you stop this installation now and contact the hardware SHARED vendor for software that has passed Windows Logo testing Continue Anyway N STOP Installation 5 ERGO Soft YLE BR Figure 3 17 Srna EL 13 Click Finish to exit the installation wizard Figure 3 18 Leber 118 11 GE 8 KRK ERGO Software Setup E Figure 3 20 E You may now enjoy your KRK ERGO 2 The ERGO Software Installation Program will start Click KRK ERGO has been installed on your computer Continue Fig ure 3 r 2 Click Finish to exit the installation wizard V Run ERGO Cal PULA w install KAK ERGO Welcome to the KRK
45. om your existing FireWire interface and plug it into ERGO In this mode you can unplug ERGO from its FireWire port and power up using the external power adapter ERGO s SPDIF Inputs and converters are of the highest quality so there will be no degradation when using this approach In fact if your DAW is dialed in we suggest that you use this approach Also this is the only approach to use for Pro Tools rigs e Use the WDM drivers Windows can aggregate WDM devices Latency may increase when using WDM instead of ASIO jacks oops Using a Mac cannot see ERGO as a FireWire device ERGO needs Leopard 10 5 x or later Go to htto www krksys com product_ergo php and click the FAQ tab for detailedinstructions on how to enable workarounds for other OSversions ERGO Rocks But want to mix in surround Can use 2 or more ERGOs for this No Surround has other issues Go to htto www krksys com product_ergo php and click the FAQ tab know I m only supposed to hear out of my right speaker but that s not happening If you re getting no sound e Make sure that your speakers are plugged into the speaker jacks oops If you re getting sound out of your left speaker e Check to see that your connectors aren t crossed and plugged in the wrong jacks While listening my mix in Global Mode do not perceive it in the same way than when monitoring it in Focus Mode Is there any technical reason e In Fo
46. one Output oi Power i Cal Mic Calibrate 5 SPOF 7 i U Figure 2 On Off Switch It switches the unit On or Power Input ERGO s power input accepts a 12VDC power supply capable of delivering a minimum of 1 amp If you intend to keep ERGO hooked up to the FireWire port on your computer 6 pin you do not need to use the external power supply as ERGO is designed to use the power coming in via the 6 pin FireWire port While ERGO can use a 6 pin FireWire port s power for itself many times this will be a bit noisy If you find this to be true in your case and you think ERGO is not providing the best sonic quality that it can go back to using the external power supply Keep in mind that you will always need to plug ERGO into the external power supply when using a mini 4 pin FireWire cable since it does not provide power like its 6 pin counterpart FireWire ports These 2 ports allow input and daisy chaining of FireWire signals One of these ports must be used while ERGO is measuring and calibrating your room Note Usually the FireWire port is only used when ERGO is running its room analysis After the analysis is complete you can unplug the FireWire interface and still use ERGO in Standalone mode using the Line or SPDIF Inputs SPDIF IN It receives digital audio data Cal Mic Input This jack is used to connect the ERGO measurement microphone It is only used during the cali
47. ossible frequency response Considering that a traditional box loudspeaker has omnipolar dispersion in the bass region this free space placement has a big disadvantage since it is possible to destroy the impulse response The reason for this is that you hear both the direct sound from the speaker and later all the reflections from the walls The reflections are delayed as a consequence of the distance to the walls and will end up arriving later think the smeared attack of a snare drum that you may have heard in the past for example 10 Typically back wall reflections are annoying because they arrive from the same direction as the direct sound from the loudspeaker Side wall reflections are easier for the brain to cope with simply because they arrive from another direction and because of this they are often regarded as adding ambience and localization clues If you place the loudspeaker close to the back wall the bass reflections from the wall and the direct sound will arrive simultaneously at your listening position Impulse response in the bass region can be improved considerably since ERGO can easily compensate for the uneven frequency response as a consequence of the placement With ERGO it can actually be to your advantage to place your loudspeaker in a less than ideal close wall spot as this will improve the impulse response while ERGO corrects it When compensating for the increased efficiency the load on both a
48. ow so if there is something you want to This window will inform you of which if any buttons are selected reconfigure select CANCEL If not click Enter to continue on ERGO A B Sub both or neither and will instruct you to Figure 5 6 select the appropriate button Click Enter to proceed Figure 5 4 Press ENTER to continue Press ENTER to continue Press CANCEL to go back Figure 5 4 Figure 5 6 Subwoofer Mode If you chose to use ERGO in Subwoofer mode the next window gives you a thumbs up to proceed or tells you to press any required buttons When given the prompt click Enter Figure 5 5 Clearing measurement memory Figure 5 7 Press ENTER to continue Please wait Figure 5 5 Figure 5 7 Tip To enable the Subwoofer mode remember to open the ERGO Control Panel and click A SUB from the Speaker Mode area 23 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 24 5 2 1 Enabling Calibration If the Calibrate button is Off check ERGO s Back panel and press it Figure 5 8 The Calibrate LED located on the Front panel will lit green Press the Calibrate button to continue Figure 5 8 If the Calibrate button is already On just click Enter Figure 5 9 Press ENTER to continue Figure 5 9 24 5 2 2 Adjusting ERGO s Volume The next step is to adjust ERGO s volume to a proper level so it is adequate for the calibration process There are two
49. puts or output bus At the moment Windows supports a single ASIO device so you must use ERGO as your only audio interface To use your existing multichannel audio interface with ERGO just run ERGO in Analog or SPDIF Input modes 1 4 2 Analog Input The Analog Input mode is the easiest way to implement ERGO into your existing listening environment If you already have your DAW set up just the way you like it and like your current audio hardware just plug the main Left Right outputs of your DAW hardware into the 1 4 balanced inputs on ERGO ERGO s high quality converters will maintain the integrity of your mix while correcting your room s problems 1 4 9 Digital Input This is similar to the Analog Input mode except that a digital SPDIF Input is used The SPDIF on ERGO accepts any input signal from 44 1 kHz up to 96 kHz The analog speaker outputs in this mode will be fixed at a 96 kHz sample rate MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 5 1 5 System Requirements A computer is required for performing room measurement and analysis Minimum required computer specifications are PC Windows XP SP2 or later or Windows Vista 1GB RAM 10 MB hard disk space 800 x 600 monitor resolution or higher 4 or 6 pin FireWire port 6 pin port required to FireWire to supply power to ERGO AC outlet for ERGO power supply if power is not supplied via FireWire Mac Mac OSX 10 5 x
50. r 10 to 20 dB peaks and dips in the frequency response It s clear that the room is the weakest link in the chain In principle if you strengthen the weakest link then the entire chain is improved In other words improve the overall quality of your artistic proj ects using ERGO 1 6 2 Room Correction so far Today most room correction is carried out based on a single measurement at the listening position This is problematic because you are trying to solve problems in a 3 dimensional sound field by taking a 1 dimensional measurement To accomplish this feat would require extraordinary acoustical skills and luck to reach the right conclusions based on this single measurement Even taking a number of positions around the listening position and averaging them is not a good solution as tests have shown that moving the microphone just 10 cm 4 in relative to the listening position easily results in 20 to 40 dB deviations So unless you are a very skilled in acoustics the chances of making a wrong decision are huge Another crucial decision is how to define on the ideal target response logically if you don t know the target it is impossible to get there Instead of making measurements at the listening position some systems measure the way the loudspeaker couples to the room the acoustic impedance In addition such a power response measurement can correct the issues you have globally through the room However it will never
51. rection products out there already But typically they re only analyzing and correcting 1 8 EQ points ERGO uses multiple measurements and thousands of EQ points to control your audio environment Our 3D model allows you to preserve the good characteristics of the room while correcting the bad ERGO doesn t color the sound or produce an artificially sterile environment So after using ERGO you will hear the difference You will be able to trust the sound of your room concentrate on your music mix faster and accurately and create mixes that will properly translate to other listening environments That s why KRK developed ERGO Because really how good is a great track that only sounds great in your room 1 2 ERGO A Complete System ERGO is a complete room analysis and correction system All of the components have been carefully selected to work in perfect harmony to provide the most accurate room analysis and correction system on the market today The ERGO system consists of 3 main components ERGO Mic Calibrated Measurement Microphone The ERGO base unit Room Correction System ERGO Cal Software Room Analysis and Control To configure ERGO s parameters and check system information just open ERGO s Control Panel For more information about ERGO s Control Panel please read Chapter 4 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 4 1 3 How does
52. solution 14 3 6 Software Installation cccccsscccceesssseeeeeees 15 4 ERGO Control Panel 20 5 ERGO Calibration Software ERGO Call 22 OD 22 Ca SEE ES 23 5 2 1 Enabling Calibration 2 24 5 2 2 Adjusting ERGO s Volume 24 5 2 3 Focus Position Measurement 1 W1 W1 W 1 W1 1 1 25 5 2 4 Room Position Measurements 27 5 2 5 Room Correction 28 5 2 6 Room Knowledge 29 MANUAL ERGO B MANUAL ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 PM Page 2 6 Using ERGO Sener ears er 31 3 SR ES 32 OF Senators nidio En eei 32 7 Generic DAW Configurations cccssccssseseseeees 33 7 1 Using ERGO in ASIO 33 72 Using ERGO in WDM Mode 33 8 Specific DAW Configurations 34 BEN Pro geen eee ee ee ee 34 8 2 Cakewalk Sonar cccccsccccecccesccsccaecceeceees 34 8 3 Ableton Live 35 BA Nuendo isror skr NEP EH ea oe TSEN 35 9 Troubleshooting 36 10 Specifications 39 Appendix Glossary of 40 IO MANUAL_ERGO B MANUAL_ERGO B Origi
53. t due to placement in frequency of the processing For low values below 10 of the room correction score only subtle correction is needed to the original sound in the room With high room correction scores more extensive processing is employed The room correction score for a specific RoomPerfect filter can be viewed by pressing the nfo button from the initial ERGO is ready to measure your room screen As ERGO begins taking measurements to acquire Room Knowledge you will be notified of the percentage of information gathered after each measurement and instructed to continue on to the next Room position measurement Figure 5 20 Place microphone in room position 2 Press ENTER to continue Figure 5 20 28 Keep in mind that as long as Room Knowledge is 90 or greater you are doing great And it can take you between 3 to 9 measurements before you get to 90 so don t be alarmed if it seems ERGO is asking for too many measurements Figure 5 21 Place microphone in room position 3 Press ENTER to continue Figure 5 21 Once ERGO reaches 90 Room Knowledge it will ask if you want to add more room measurements Figure 5 22 no more are required at this point so you can select NO Add more room measurements YES NO Figure 5 22 If you choose to continue with more measurements select YES and follow ERGO s prompts Some rooms take many measurements some can reach this level with only 3 measure
54. to find information about RoomPerfect 3 6 Software Installation Go to hito www krksys com product_ergo php and download the latest Mac and or PC version of the ERGO Software Package Click the Drivers amp Updates tab and then click the Download link Then just read the following instructions PC 1 Unzip the ERGO Software folder by double clicking on it Figure 3 7 ERGO Softw Figure 3 7 2 Double click the ERGO Software exe file Figure 3 8 ERGO Software vLO02 eve Figure 3 8 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4 009 3 05 Page 16 3 The following Security Warning will appear Click Run 5 Do not connect ERGO to your computer Click Next Figure 3 9 Figure 3 11 File Download Security Warning KRK ERGO Software Setup KRK ERGO Installation Wizard The publisher could not be verified Are you sure you want to run this software Name ERGO Software v1 02 exe Publisher Unknown Publisher Type Application Please verify that your KRK ERGO is NOT yet connected to your computer Setup will now install the driver files for your hardware If a message pops up asking to confirm installation click Continue Anyway to proceed oe Click Next to continue This file does not have a valid digital signature that verifies its publisher x You should only run software from publishers you trust How can decide what software to run
55. to play back through ERGO even when your main DAW software is running in the background Below you will find information regarding integration of ERGO into various DAWs 8 1 Pro Tools If your Pro Tools hardware provides a SPDIF output ensure that SPDIF is enabled in your Pro Tools hardware contiguration set up Please read your Pro Tools manual for more details 8 2 Cakewalk SONAR Cakewalk defaults to using WDM drivers This allows multiple audio interfaces to be used in the program This is a pretty good idea however with ERGO it does not result in the best audio performance If this is a new installation and ERGO is your only FireWire interface set SONAR for ASIO mode by pointing to the Options menu in the toolbar and selecting Audio When the screen pop up window appears click the Advanced tab Select ASIO from the Device Mode menu Figure 8 Click the General tab Make sure that ERGO ASIO ERGO Out 01 is selected in the Playback Timing Master menu and ERGO ASIO ERGO In 01 in the Record Timing Master menu MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 47 34 009 3 05 PM Page 34 Audio Options ASIO General Advanced Drivers File System Enable Read Caching Enable Write Caching Playback 1 0 bep Buffer Size KB 256 Playback and Recording O Trigger amp Freewheel Best when sound card has a word clock input Record I O Buffer Size
56. tor or custom headphone mix to this stream and it can be controlled independently using this little knob on the side of ERGO Caution f the headphone volume control is not used caretully it could cause permanent hearing damage Start low and slowly raise the volume level and ensure that your system sounds are balanced with your DAW mix MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 10 It s time to get ready to set up your mixing environment This consists of 3 easy steps 1 Set up your monitors you may have already put them exactly where you want them but please read the next section as you may learn something about monitor positioning that will ensure you get maximum enjoyment out of ERGO 2 Connect cables you will get to plug things into and out of your ERGO 3 Run the software ERGO s software is simple to install and use Just read carefully the instructions provided in this manual and on your computer screen OK let s make sure your monitors are properly set up 3 1 Installing Your Monitors Before to install your monitors it is a good idea to understand what happens in your room depending on speaker placement and other related topics With ERGO there s a change up in traditional loudspeaker placement rules you can break away from conventional free space placement In general loudspeakers are placed well away from rear and side walls to secure the best p
57. ust doesn t reflect what happens in the real world Therefore the challenge is not to remove the room and the reflections but to work with them Speaker designers obviously have an idea of how a loudspeaker should sound ERGO strives to preserve the speaker s identity no matter what kind of room you re in or how the speaker is placed You bought your great KRK monitors or some other monitors because you liked the way they sounded and we understand that That s why ERGO does not make every audio system sound the same The tonal balance of your speakers will be kept intact but ERGO will match them to your room by compensating for the room s influence Generally room influence can be defined as peaks and dips in the frequency response Some can and should be compensated for others cannot and should not So now you see the challenge involved in creating a room correction system that maintains the tonality of your system and only compensates for problems that can be solved ERGO can correct for many of these issues and help your mixes to properly translate to other listening environments MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 7 2 1 Back Panel and Connections In the Back panel Figure 2 ERGO includes On Off Switch e Power Input FireWire Ports SPDIF IN e Cal Mic Input Line Inputs L amp R Calibrate button Speaker A and B Sub Outputs e Headph
58. w the instructions and prompts that appear You will be prompted to reboot your computer Once your computer has rebooted you may verify that the update has been performed from System Profiler by viewing the AppleFWAudio extension Select the Apple icon and then About this Mac From here select the More Info button In the left hand pane under Software select Extensions Atter the Extensions list populates read the version of AppleFWaAudio that installed which should be 2 0 1 ERGO drivers should now install properly 38 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 39 Processing Processing 400 MHz Blackfin DSP RoomPerfect Algorithm Sample Rate 96 kHz Room Correction Frequencies 20 500 Hz 1024 tap FIR filter for room correction Audio Spec Audio Spec A B Speaker Select and Control Stereo Audio In SPDIF In 32 kHz 96 kHz 118 dB SNR and Dynamic Range THD N 0 003 FireWire Spec Mac WDM and ASIO Driver support FireWire Recording Interface Capable Simultaneous 4 in 6 out KA Mechanicals Illuminated Controls Measurement Microphone Headphone Output 39 MANUAL_ERGO B MANUAL_ERGO B Originator RAARAMBURU 216 x 203 mm 4009 3 05 Page 40 A D Short for Analog to Digital Conversion The conversion of ana log data or information into digital or binary form See binary ASIO Audio Stream Input Output ASIO developed by Stei
59. ware Completing the Found New Hardware Wizard Wizard Windows will search for current and updated software by looking on The wizard has finished installing the software for your computer on the hardware installation CD or on the Windows Update Web site with your permission Q KRK ERGO Null Device Read our privacy policy Can Windows connect to Windows Update to search for software O Yes this time only Yes now and every time connect a device No notthis time Click Next to continue Click Finish to close the wizard Figure 3 13 Figure 3 15 9 Select Install the software automatically and click Next 11 Go back to the ERGO Installation Wizard and click Next Figure 3 14 Figure 3 16 Found New Hardware Wizard KRK ERGO Software Setup Please plug in your KRK ERGO now This wizard helps you install software for The Found New Hardware Wizard will appear If r prompted to search the Windows update website select KRK ERGO Null Device f No not at this time then select Next at the bottom of the window Continue by selecting Install the software automatically then select Next Press Finish to close the A wizard 9 If your hardware came with an installation CD or floppy disk insert it now After you have completed the Windows Found New Hardware Wizards there may be more than one return to the Setup window and click Next to continue What do you want the wizard to do I
60. your monitors into ERGO 6 2 Scenario 2 have a simple recording set up and want to use ERGO as my main audio interface If you are a 1 person operation and can live with recording 24 tracks at a time this works quite nicely Here s what you do Make sure ERGO s audio drivers are installed and set up If you are able to do a room measurement then this is complete If you are not able to do a room measurement then see the Troubleshooting section of this manual PC Users Uninstall any other ASIO driver audio device If it doesn t say ERGO ASIO but says XXXXX ASIO get it out of your system or conflicts may arise To do this e If you are using an analog mixer to route your signals take the main Left Right outputs of this mixer into ERGO s LINE Ins Tell your DAW to use ERGO Analog Inputs as your recording interface 32 Whatever is playing through your mixer gets recorded to your DAW e If you are using a digital mixer with SPDIF outputs or a keyboard preamp with SPDIF output just plug this SPDIF Out put into ERGO s SPDIF Input and set your keyboard preamp to a SPDIF output sample rate between 32 kHz and 96 kHz ERGO will figure out the sample rate coming in and set its hardware to work with your device 6 3 Scenario 3 have a cool DAW setup but am not sure which approach is best for me Which route should take If your current audio hardware has SPDIF Out use this No new drivers no compatibility

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