LR32-BOX recorder - manual
Contents
1. The first general part is used to select recording sample rate To achieve the best quality you should use 16kHz or 22kHz but this mode takes more power from the battery and will use most of the space for storing the data For best performance check table showing battery life and memory capacity for each specific mode Recorder settings x General Audio Schedule Other r Voice activated recording Treshold level Delay sec La an rM M Enabled m a N Age X Microphone volume control J Enable AGC Maximum mic volume r re as a BE J Next page is used for voice activated recording When this option is enabled recorder is recording only when it detects sound above selected threshold level Minimum level means the highest sensitivity Delay is specifying the time for how long recording continues after this sound level is not detected anymore Recommended value is 5 seconds or more When LED is enabled to flash during recording it is flashing only when recording is in progress and not when the recorder is in idle mode waiting for exceeding the selected threshold level This mode saves significantly the battery energy resulting much longer time of operation For microphone volume control is implemented AGC function The recorder should be used in noisy environment or to monitor large rooms where all silent sounds are required to be recorded When AGC checkbox is checked this function is enabled and recor2. recording 00 000305 TEE Se Start of selected area co 000000 Day Hour Min Sec E E End of selected area pap ap ap 3 cess Export drectory Cit overview of loaded record list of all records with timelime This software is used for overview export and replay of all stored data When you start this application you must open the image file which is stored on microSD card containing file rcimage raw When this action is complete all records will be visible in recordings list To load each record double click on selected record you whish to load For using the detailed view you should select only specific area by using mouse left and right button and clicking on full record s overview window When the mouse is moved over this area the time is visible in bottom status bar This time scale should be non linear when the voice activated recording was used All configuration is stored in image file on microSD card The configuration should be changed in main menu by selecting Options gt Recorder settings This windows is divided into 4 following sections Recorder settings x General Audio Schedule Other m Recording mode Sample rate Compression Remark Maxseclength 5500 ADPCM longest battery life 8000Hz 11025Hz 16000Hz 22050Hz ADPCM ADPCM ADPCM ADPCM longest battery life optimum performance best quality Odays Odays Odays Odays hrs hrs hrs hrs
3. LR32BOX audio recorder User manual Version 1 01 This recorder let s you to record any audio or human conversation in high quality and store all on micro SDHC card The state of art technology with very low power consumption allows you to record very long records when the battery is powering the module This recorder is equipped with very high sensitive microphone and wide dynamic range and is able to record conversation from distance over 30 feet 10 meters All stored recordings are accessible on micro SDHC card by using included recording manager developed for Windows operating system This software includes fast overview of each record and simple editing functions including serach for active sound in long records For protection of stored data it is possible to set password access for all stored recordings Integrated real time clock should start recording in any specific period of each day or at any specific date All recorded data are stored with time marks which gives you very good overview in case of long time recording Technical data Dimension 28x33x15mm Battery types 4x button cell 1 5V alkaline AG 13 or Zinc Air ZA675 PR44 Power supply voltage 3 0 6 0V Maximum recording time 528 hours 22 days at 16kHz with 16GB card Card type Micro SDHC card Signal to noise ratio 65dB Sample rate 22kHz 16kHz 11kHz 8kHz 5 5kHz Bit width 16bit Built in microphone sensitivity 10 15m Battery life in stand by mode 90 da
4. der automatically adjust microphone volume according detected sound level Maximum microphone volume indicates the maximum volume used by AGC function When AGC function is disabled this selected volume is fixed for all the time Recorder settings x General Audio Schedule Other Timer activated recording Disabled Hours minutes Daily timer Single timer C Weekly timers Start Stop J Monday O mio 5 O so Tuesday o o o GI amp I Wednesday o 0 O so I Thursday o Ho S o se I Friday o 0 o Sl Saturday o il O zit IT Sunday 0 0 0 10 Remark When the time is set to 00 00 the timer will not be active Recorder is equipped with internal real time clock and recording scheduler If you want to use time activated recording you can choose from 3 options Daily timer enables recording scheduler to start and stop recording at the specified time period which repeats every day Single timer is used to start and stop only once at given time and date The last is weekly timer where you can specify a different time periods for each day of a week Every time set to 00 00 is ignored which enables to schedule recording for example over the midnight General Audio Schedule Other Other Button function Double click IV Enable LED during recording Single click Power up date and time Hours Min 1 3 2012 gt ja o Password prot
5. ected access I Enabled The last part of a configuration contains various options LED should be disabled in this window to allow discrete mode of operation Only flashes during recording are disabled Indication of power up start and stop sequence is not affected by this option The real time clock is synchronized according the preset time stored on micro SD card When you select in this window power up date and time this date and time is synchronized inside the recorder when the card is inserted into a recorder and the recorder is powered up by inserting the batteries All recordings should be password protected by using password protection When the password protection is enabled and the password is entered all recorded audio will be protected by using this password When you open the image file you ll have to type correct password to open all audio records Export of records Each record should be exported and stored to your local hard drive in WAV format To do this select from one exporting options in main menu Records All records are stored to selected directory which you can change by menu item Select directory for export Long records should be split into more files Use option in menu Records gt Maximum size of exported file to specify maximum size of each exported WAV file Q Can t start recording LED flashes only once and the card is not full A The card contains 255 records For next rec
6. has exceeded the card is considered as full When the recording is in progress the LED makes short flashes each 2 seconds This function should be disabled for discrete recording When the voice activated recording is enabled the LED flashes only when the sound level is above selected threshold and recording is in progress The recording is stopped when the card is full or by moving the slide switch to OFF position Stop sequence is indicated by 3 LED flashes The recorder should be powered by small coin cell batteries with any chemistry Zinc Air batteries gives the longest recording time in comparing the smallest size When Zinc Air batteries are used the sticker must be removed first Keep in mind that this type of battery has a self discharge effect When the sticker is removed the batteries are discharging regardless if the battery is inserted in the recorder or not The usual usage limit is about 2 3 weeks after removing the sticker Tynes of supported SDHC cards The recorder supports a wide range of micro SDHC cards however we recommend you to use our included card for best performance The cards from the other brands should consume more power and this should affect the power consumption significantly in recording mode Recorder manager software description la xi corder manager Memory Records Yew Options Language FEL ALR Record view 006 Controls Total recorded time 0 901 59 fe B Remanng tine for
7. ording you must delete at least last record from the list or format the card Q Card can t be initialized LED always flashes 5 times A Card is not micro SDHC type or is not properly inserted or the power supply can t give sufficient current to initialize the card Q The beginning time of recording is incorrect A This time is always equivalent to the real time clock which are synchronized from the card This problem should happen when the batteries were removed or the card was removed and clocks are resynchronized again with wrong time Q Recorder was operating and the power source has been suddenly interrupted A For this case the last record will be stored properly without any problems Q The image file is missing on the card or the card is unreadable in PC computer or the image file was deleted A In this case never try to recover the date by using any data recovery software and consult this problem with your distributor of recorder All the data should be recovered but recorder is using specific way to store the data and special procedure must be used for this case Q The program shows much shorter available space for recording then is the expected size of used card A The card was formatted to smaller image size You must create new image file with using maximum space of card Q Recorded sound is distorted in very loud sequences A Enable AGC function in recorder s settings to prevent microphone overloading by l
8. oud sounds Avoid using ADPCM2 compression if you require good quality of audio
9. u will find one file with name rcimage raw which is used for storing all records If you want to make a backup of all stored records you should copy this file to your local hard drive In case of selecting larger used space for image file there will be more than one file created and the others will be named rcimage ral rcimage ra2 etc Once you have created image file you can insert the card into the recorder and start using it Do not remove or insert the card when the recording is in progress Start and stop the recording This action is operated by using a slide switch The slide switch works in parallel with the internal timers for scheduled recording For example when the slide switch is in ON position the recording is not interrupted regardless the settings of scheduled recording When the timer activates the recording it still continues until the scheduler reaches the scheduled stop time regardless the position of slide switch Before the recording starts the LED flashing sequence will follow When the LED flashes 5 times it means some failure of the micro SD card and the recording didn t start When it flashes only ones the card is full and recording can t be started Flashing 2 to 4 times indicates available memory space 4 flashes more than 75 space available 3 flashes more than 50 space available 2 flashes less than 25 space available The recorder should store up to 255 records If this count
10. ys with alkaline batteries Voice activated recording yes AGC function user selectable automatic gain control or fixed microphone gain Exporting format by using included software WAV format Scheduled recording selectable daily period week period or calendar Operating mode select slide switch Microphone type high quality Knowles EK23 series micro SD card slot indication red LED t ON position OFF position Battery life in recording mode for Zinc Air battery type measured in hours Sample rate po D O 22kHz For extending battery life should be used voice acitivated recording mode This option may extend this time significantly Operating instructions For controlling all functions is used one slide switch and multifunctional LED Before inserting batteries you must have ready formatted SDHC card which must be formatted by included recording manager Card must be formatted with FA T32 filesystem only and can t contain any other files or folders than image files created by recording manager and can t be used by other equipement like PDA digital camera etc After insertion of card to PC you need to start formating by selection in menu Memory gt Create new image You should select option to create smaller image file than the size of the card however the total recording time will be shorter Creating of image file should take several minutes After the creating of image files is complete yo
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