Laboratory 2,LTD
Version of
12.05.2020
Page 4
1. Product specification and description of the voice recorder
1.1 Voice Recorder "SOROKA-06E" is designed to record audio signals with the built-in
or external digital MEMS microphones in the mono / stereo modes to the memory card mi-
croSD or microSDHC Class4 or higher.
1.2 Basic specifications of voice recorder are shown in Table 2.
Table 2. Specifications of voice recorder "SOROKA- 06E".
№
Parameter
Description
1
Dimensions, mm
45х24х8.5
2
Operating temperature range
-20°С to +40°С
3
Recording file format
«WAV»
4
Memory type
removable memory card microSD/SDHC
5
PC interface
via microSD card
6
Type of the charger
from the USB port
7
Discretization of sound frequency
8 kHz and 16 kHz
8
Sound resolution
16-bit / 8-bit u-law
9
Microphone Sensitivity
-26 dBFS at 94 dB SPL (8-9 meters)
10
Sound / Noise ratio
of 64 dB
11
Non-Linear Distortion Ratio
less than 3%
12
Frequency range as per
level -3 dB.
Discretization frequency
8 kHz
50 Hz - 3.5 kHz
16 kHz
100 kHz - 7 kHz
13
Length of operation
from internal accumu-
lator (
Kingmax
memory card 16 GB
10 cl
)
The frequency of dis-
cretization
Typical operating time
(hours)
Not less than * (hours)
Mono
Stereo
Mono
Stereo
8 kHz / 16-bit
42
21
25
13
16 kHz / 16-bit
25
13
15
8
8 kHz / 8 bit u-law
52
26
31
16
16 kHz / 8 bit u-law
31
16
19
10
14
Length of continuous recording with an external
accumulator 1.8 A h, 8 kHz, 8 bit
Up to 670 hours (28 days)
15
Function of real-time clock
Yes
16
Function of work as an alarm clock
Yes (up to 10 alarms or daily cyclical alarm)
17
File encryption function
Yes
18
The digital signature of files function
Yes
19
Mode of voice operated switch (VOX)
Yes (three levels of sensitivity and record labels while
voice activation)
20
Ability to manually control the recording level
Yes; -12 dB to +18 dB with step 6 dB.
21
Mode of automatic recording level control
Yes; -12 dB to +18 dB with step 6 dB.
22
Logger
Yes
23
The possibility of connecting external mono / ste-
reo microphones
Yes
24
The possibility to connect an external power supply
Yes
25
The system of recording tags in the files
Tags for beginning and end of the file; tags by press-
ing; tags for actuating the voice activation.
* Minimum time of operation of the voice recorder due to loss of accumulator capacity by
40% in the aging process, or at low temperatures.
