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 Laboratory2, LTD 

 

 

Page4 

Version of 05.09.2019 

1  Product specification and description of its operation 

1.1

 

Purpose of the voice recorder. 

The voice recorder Soroka-10Е is designed to record audio with the built-in digital MEMS mi-

crophone in mono mode to the micro SD memory card or micro SDHC Class4 or higher. The recorder 
is powered by LR03 battery of 1.5 V. 

 

1.2

 

Basic specifications of the voice recorder are listed in Table 2. 

Table 2. Specifications of the voice recorder SOROKA- 10Е. 

№ 

Parameter 

Description 

Dimensions 

50x14,2x16,2 

Operating temperature range 

-20° C to +40° C 

Recording file format 

«.WAV» 

Type of memory and filing system 

Removable memory cards micro SD, micro SDHC; 

FAT32 filing system 

Interface with PC 

via micro SD card 

Element power supply 

Battery LR03 (1,5 V) 

Discretization of sound frequency 

8 kHz, 16 kHz, 24 kHz, 32 kHz 

Resolution 

8 bit(u-law), 16 bit, 20 bit. 

Microphone Sensitivity 

-26 dBFS at 94 dB SPL (8-9 meters) 

10 

Non-Linear Distortion Ratio 

less than 3% 

11 

Frequency range as per 

level - 3 dB 

Sample rate 

 

8 kHz 

3 Hz – 3.384 kHz 

16 kHz 

3 Hz – 6.768 kHz 

24 kHz 

 3 Hz – 10.152 kHz 

32 kHz 

 3 Hz – 13.536 kHz 

12 

Duration of work, when 
the resolution is 16-bit 
with u-law  compression   

Sample rate 

Typical operating time* (hours)  

 

8 kHz 

240 

16 kHz 

164 

24 kHz 

128 

32 kHz 

109 

13 

Duration of work, when 
the resolution is 16-bit 
without compression 

 

Sample rate 

Typical operating time* (hours)  

 

8 kHz 

218 

16 kHz 

141 

24 kHz 

112 

32 kHz 

89 

14 

Duration of work, when 
the resolution is 20-bit. 

Discretization fre-

quency 

Typical operating time* (hours)  

 

8 kHz 

169 

16 kHz 

90 

Содержание SOROKA-10E

Страница 1: ...Laboratory2 LTD Page1 Version of 05 09 2019 SOROKA 10E DIGITAL VOICE RECORDER OPERATIONAL MANUAL...

Страница 2: ...he voice recorder 7 2 VOICE RECORDER USAGE 8 2 1 Operating limitations 8 2 2 Preparation of voice recorder for usage 8 2 3 Setting voice recorder parameters 8 2 4 Usage of the voice recorder 9 2 5 Cre...

Страница 3: ...nance necessary for the correct operation and full use of technical capabilities of a recorder SOROKA 10 Fig 1 Delivery set of voice recorder Soroka 10E Table 1 List of items supplied Name The number...

Страница 4: ...FAT32 filing system 5 Interface with PC via micro SD card 6 Element power supply Battery LR03 1 5 V 7 Discretization of sound frequency 8 kHz 16 kHz 24 kHz 32 kHz 8 Resolution 8 bit u law 16 bit 20 b...

Страница 5: ...ecording 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 t...

Страница 6: ...A further indication is possible 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 inte...

Страница 7: ...on of the voice recorder The appearance of the voice recorder Soroka 10 is shown in Figure 2 Fig 2 Appearance of voice recorder Soroka 10 Element power supply emory card Inclusion button Operating mod...

Страница 8: ...ual before starting to use the voice re corder Before 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 cr...

Страница 9: ...ntegrity of the pro gram dict exe Before using program please read paragraph 2 7 of this document To listen to the recorded files use any player that supports WAV format recom mended is SOUND FORGE ve...

Страница 10: ...loud sounds will be weakened and quiet on the contrary amplified That will allow aligning the sound level automatically This function isn t available is not required at sound resolution of 20 bits e T...

Страница 11: ...ompression allows to significantly increase record duration and by two tree times decrease memory consumption on the microSD card in comparison with the record modes in a format 16 20 bits without com...

Страница 12: ...order 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 automatically after th...

Страница 13: ...gital signature b Indicator of 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 pro...

Страница 14: ...named FL_8 WAV the file with 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...

Страница 15: ...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 exe Secti...

Страница 16: ...DT_PSWRD_VIOLATION For official purposes FLASH_PSWRD_VIOL For official purposes PLL_UNLOCK For official purposes PERF_AREA_FETCH For official purposes PMM_PSWRD_RESET Forced software reset occurs when...

Страница 17: ...repair of the voice recorder should be made at the factory or in the workshop Attention Unauthorized opening of the voice recorder leads to the withdrawing of the war ranty from the voice recorder 5...

Страница 18: ...ts of planes and helicopters To carry out transportation of a dictophone without food battery 7 Manufacturer s warranty 7 1 The manufacturer guarantees the accordance of the voice recorders to the tec...

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