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 Laboratory2, LTD 

* Typical operating time is set by the results of measuring the duration of voice recorders with memory 

cards microSDHC Samsung EVO + 32GB. 

** 

Minimal operation time is determined by loss of battery capacity by 40% in the aging process, or at 

low temperatures. 

1.3. Light indication of operation modes and battery charging modes. 

Light indication of operation modes and emergency cases of the voice recorder is shown in table 3. 

13

16 kHz

34

20

24 kHz

27

16

32 kHz

21

12

14

Duration of work, when 

the resolution is 20-bit.

Discretization fre-

quency

Typical operating 

time* (hours)  

At least ** (hours) 

8 kHz

42

25

16 kHz

26

15

24 kHz

18

11

32 kHz

13

8

15

Suppression outside the band of operating fre-

quency range while octave tuning 

at least 60 dB

16

Average life

for at least 2 years

17

Average storage time 

not less than 2 years, with the implementation of 

discharge / charge cycle every three months

18

Battery  charge time

up to 4 hours

19

Function of real-time clock

Yes

20

Function of work as an alarm clock

yes (up to 10 alarms or daily cyclic alarm clock)

21

Function of files digital signature

Yes

22

Voice operated switch (VOX) mode

Yes (three sensitivity levels and record tags at 

operation in VOX mode)

23

Ability to manually control the recording level

Yes (only under 16-bit resolution and compression 

u-law ); from -12 dB to +18 dB in 6 dB.

24

Automatic sound level adjusting 

Yes (only under 16-bit resolution and compression 

u-law ); from -12 dB to +18 dB in 6 dB.

25

Logger

Yes

26

System of records tags in files

Tags at first and to the end of files; tags on press-

ing of the button; tags on operation of an akusto-

pusk.

27

Cyclic recording

Yes

 

Page  

7

Version of 04.04.2019

Summary of Contents for SOROKA-17E

Page 1: ...Laboratory2 LTD SOROKA 17E DIGITAL VOICE RECORDER OPERATIONAL MANUAL Page1 Version of 04 04 2019...

Page 2: ...Laboratory2 LTD Page2 Version of 04 04 2019...

Page 3: ...18 4 LOGGER 18 5 CURRENT REPAIR OF THE VOICE RECORDER 20 5 1 General instructions 20 5 2 Typical faults 21 6 STORAGE AND TRANSPORTATION 22 6 1 The voice recorder should be kept in its original packagi...

Page 4: ...ycles of the battery are held every 3 months 22 7 4 The warranty period is extended for the period of warranty repairs if any 22 7 5 In case of defects discovered in the voice recorder due to the manu...

Page 5: ...n and full use of technical capabilities of a SOROKA 17 Recorder Fig 1 Delivery set of voice recorder Soroka 17E Table 1 List of items supplied Name The number Option 17E 1 Voice recorder Soroka 17 1...

Page 6: ...micro SDHC FAT32 filing system 5 Interface with PC via micro SD card 6 Charger type Cable USB micro USB 7 Discretization of sound frequency 8 kHz 16 kHz 24 kHz 32 kHz 8 Resolution 8 bit u law 16 bit...

Page 7: ...least 60 dB 16 Average life for at least 2 years 17 Average storage time not less than 2 years with the implementation of discharge charge cycle every three months 18 Battery charge time up to 4 hours...

Page 8: ...sible only by pressing a button b Mono recording mode after a brief pressing of control button 1 If the battery voltage is normal the indicator repeatedly blinks green internal microphone orange exter...

Page 9: ...ce of the voice recorder Soroka 17E is shown in Figure 2 Fig 2 Appearance of voice recorder Soroka 17E Charging modes Indicator Status Charge a The end of the charge of the rechargeable bat tery Indic...

Page 10: ...starting to use the voice recorder it is necessary to carry out an external inspec tion for mechanical damage On the surface there should be no cracks chips dents Metal parts should not have any trace...

Page 11: ...ard into the voice recorder Turn the voice recorder on by pressing the control button for 2 seconds After turning on voice recorder enters the operating mode which has been set by the user at the last...

Page 12: ...by silence Use of beeps between fragments allows the user to define au rally the beginning of a new fragment when listening files c Sensitivity of voice recording switch The user can adjust a thresho...

Page 13: ...pression Use of u law compression allows to significantly increase record duration and by two tree times decrease memory consumption on the microSD card in comparison to the record modes in a format 1...

Page 14: ...er which voice recorder will switch off and expect activation of the following alarm clock Alarm clocks work in strict sequence from the first to the tenth The voice recorder will be switched off auto...

Page 15: ...f the progress digital signature calculation c Button Start Stop File digital signature checking runs by pressing the Start button By pressing Stop button the checking process stops At the end of the...

Page 16: ...Laboratory2 LTD Page16 Version of 04 04 2019...

Page 17: ...h information about the labels will have the name FL_8 TXT The generated file with information on labels is automatically stored in the directory of the originally scanned file or directory in which t...

Page 18: ...ry time when it detects an audio signal actuation of the voice activation mode Analysis of the tags may be formed for example using Sound Forge version 6 0 or higher or using software supplied dict ex...

Page 19: ...on number POWER_RESET Reset by power failure PIN_76_RESET Processor hardware reset PMMSWBOR For official purposes WAKE_UP_FROM_LPX 5 For official purposes SECURITY_VIOLATION For official purposes SVSL...

Page 20: ...IMEOUT Micro SD does not respond to a command to read data 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 record ing d...

Page 21: ...e 6 Table 6 Typical faults of the voice recorder and their solutions Faults Methods of correction The voice recorder doesn t switch on Charge the storage battery Recorded audio files are not readable...

Page 22: ...with air temperature over 25 C 7 Manufacturer s warranty 7 1 The manufacturer guarantees the accordance of the voice recorders to the technical re quirements providing that the customer observe instr...

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