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Laboratory2, LTD
SOROKA – 16E
DIGITAL VOICE RECORDER
OPERATIONAL MANUAL
Page1
Version of 14.05.2018

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Summary of Contents for Laboratory2 SOROKA-16E

  • Page 1 Laboratory2, LTD SOROKA – 16E DIGITAL VOICE RECORDER OPERATIONAL MANUAL Page1 Version of 14.05.2018...
  • Page 2: Table Of Contents

    Creating a configuration file......................... 9 Verification of files digital signatures....................13 External microphone connection......................15 SOROKA-16E SYSTEM OF VOICE RECORDER LABELS ......15 LOGGER......................16 CURRENT REPAIR OF THE VOICE RECORDER ........... 17 General instructions ..........................17 Typical faults ............................
  • Page 3 SOROKA-16E. Fig. 1. Delivery set of voice recorder Soroka-16E. Table 1. List of items supplied. Option...
  • Page 4: Product Specification And Description Of Its Operation

    1 Product specification and description of its operation Purpose of the voice recorder. The voice recorder Soroka-16E is designed to record audio with the built-in/external digital MEMS microphone in mono regime to the micro SD memory card or micro SDHC Class4 or higher.
  • Page 5: Light Indication Of Operation Modes And Battery Charging Modes

    Laboratory2, LTD not less than 2 years, with the implementation of Average storage time of the voice recorder discharge / charge cycle every three months Battery charge time Not more than 5 hours Function of real-time clock Function of work as an alarm clock...
  • Page 6 Laboratory2, LTD Table 3.Light indication of modes and emergencies. Modes and emergency situations Status of Indicator "Mode" of the voice recorder 1. In normal recording mode, indicator turns green and stays so until the end of opening file process (duration of file opening depends on the file size and free memory capacity).
  • Page 7: Design And Operation Of The Voice Recorder

    Indicator "Charge" lights green b) Charge of the rechargeable battery indicator "Charge" lights red Design and operation of the voice recorder. The appearance of the voice recorder Soroka-16E is shown in Figure 2. Indicator Mode MicroSD memory card Indicator Charge...
  • Page 8: Voice Recorder Usage

    Laboratory2, LTD 2 Voice recorder usage Operating limitations. To avoid the voice recorder failure, observe the following rules: a) Rechargeable battery charging should be carried out only from USB port of PC and with USB adapter from the delivery set;...
  • Page 9: Setting Voice Recorder Parameters

    Laboratory2, LTD Setting voice recorder parameters. Insert the micro SD card into the card reader. Format the micro SD under the filing sys- tem FAT32. Create a folder with any name on your computer. Copy the dict.exe program from the supplied CD disk (or download it from our web- site) into the created folder.
  • Page 10 Laboratory2, LTD dio level is below a predetermined threshold for 15 seconds, then the voice recorder stops recording and enters the standby mode of the acoustic signal, without closing of the current file. Sound recording fragments are consistently registered in the current file (up to 70 frag- ments in one file).
  • Page 11 Laboratory2, LTD Fig. 3. Tab "Setting the recorder" at dict.exe program window. g) Choice of sampling frequency. Possible values are 8 kHz, 16 kHz, 24 or 32 kHz. The higher sound sampling frequency value, the higher quality of the written-down sound, how- ever the time of autonomous work of a voice recorder is less.
  • Page 12 Laboratory2, LTD j) Setting the current time and date. To use the current system time, put a tick to "System time". To manually change date and time in file system of a voice recorder, remove tick on "System time" and put a tick "To adjust real time clock".
  • Page 13: Verification Of Files Digital Signatures

    Laboratory2, LTD Verification of files digital signatures. Run dict.exe program and select the "Verifying of file integrity" tab, as shown in Fig. 4. This tab is designed to verify digital signatures of the desired file. Fig. 4. Example of digital signature verifying.
  • Page 14 Laboratory2, LTD At the end of the file checking, the program will show the message "The digital signature is valid", if the integrity is not violated. If the file contains errors, the program displays the message "The digital signature is not valid!". Also, for each file, the serial number of the voice recorder is shown (Fig.
  • Page 15: External Microphone Connection

    Tag on VOX initiali- zation Fig. 7. Example of automatic tags recognition by the Sound Forge program in audio files of Soroka-16E voice recorder. The name of each label corresponds to the date and time of its creation. Page15 Version of 14.05.2018...
  • Page 16: Logger

    Laboratory2, LTD 4 Logger. Logger is designed to register history of recorder’s operation and emergencies to the non- volatile memory. In addition, logger contains manufacturing data (recorder identification number and firmware number) Logger stores from 32 to 48 latest events, as well as their time and date.
  • Page 17: Current Repair Of The Voice Recorder

    Laboratory2, LTD SD_WRITE_FAILURE Command to record data do not pass to micro SD NO_SD_BLKWR_RESPONSE There is no confirmation from mcroSD to the recording data block PROGRAM_BOR_RESET Complete reset of the voice recorder. Called forcibly, if the voice recorder has not detected a microSD memory card or if the memory card of filing system contains errors.
  • Page 18: Storage And Transportation

    Laboratory2, LTD 6 Storage and transportation The voice recorder should be kept in its original packaging in heated storage rooms at a temperature ranging from +5 to +25 ˚C with relative humidity less than 80% (at +20 ˚C). The environment must be free from pairs of acids, alkalis and other aggressive impurities.

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