Laboratory2, LTD
SOROKA – 09M
DIGITAL VOICE RECORDER
OPERATIONAL MANUAL
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Version of 25.02.2018
Laboratory2, LTD
TABLE OF CONTENTS
1 PRODUCT SPECIFICATION AND DESCRIPTIO N OF THE VOICE
RECORDER OPERATION ......................................................................................... 4
1.1 Purpose of the voice recorder. ............................................................................................................... 4
1.2 Basic specifications of the voice recorder. ............................................................................................ 4
1.3 Light indication of operation modes and battery charging modes .................................................... 5
1.4 Design and operation of the voice recorder. ........................................................................................ 7
2 USAGE OF THE VOICE RECORDER ................................................................ 8
2.1 Operating limitations. ............................................................................................................................ 8
2.2 Preparation of the voice recorder for usage. ....................................................................................... 8
2.3 Rechargeable battery charging ............................................................................................................. 8
2.4 Setting voice recorder parameters. ....................................................................................................... 9
2.5 Usage of the voice recorder ................................................................................................................... 9
2.6 Creating a configuration file. ................................................................................................................ 9
2.7 Verification of fils digital signatures................................................................................................... 13
3 SOROKA-09M SYSTEM OF VOICE RECORDER LABELS. ........................... 15
4 LOGGER. .......................................................................................................... 16
5 CURRENT REPAIR OF THE VOICE RECORDER ........................................... 17
6 STORAGE AND TRANSPORTATION.............................................................. 18
7 MANUFACTURER'S WARRANTY ................................................................... 19
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Operation Manual contains information on specifications, the device and the operating principles, the rules of storage, instructions for use and maintenance, necessary
for the proper operation and full usage of the technical capabilities of the voice recorder SOROKA-09M.
Fig. 1. Delivery set of voice recorder Soroka-09M.
Table 1. List of items supplied.
Name
Quantity
Option
09.1ME
09.2ME
1. Voice Recorder Soroka -09M
1
+
+
2. Micro SDHC memory card
1
16GB
32GB Samsung EVO+
3. Passport
1
+ +
4. USB charging cable for the voice recorder
1
+ +
5. CD ROM disk with software and a set of
software and manual
1
+
+
6. Card Reader
1
+
+
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1 Product specification and description of its operation
1.1 Purpose of the voice recorder.
The voice recorder Soroka-09M is designed to record audio with the built-in digital MEMS mi-
crophone in mono regime to the micro SD memory card or micro SDHC Class4 or higher.
1.2 Basic specifications of the voice recorder are shown in Table 2.
Table 2. Specifications of the voice recorder SOROKA - 09M.
№
Parameter
Description
1
Dimensions
33.3x26x5.3
2
Operating temperature range
-20° C to +40° C
3
Recording file format
«.WAV»
4
Type of memory and filing system
Removable memory car ds micro SD, 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, 20 bit.
9
Microphone Sensitivity
-26 dBFS at 94 dB SPL (8-9 m eters )
10
Non-Linear Distortion Ratio
less than 3%
11
Frequency r ange as per
level - 3 dB
Discretization fre-
quency
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
Discretization fre-
quency
Typical operating
time* (hours)
Not less than ** (hours)
8 kHz
102 61
16 kHz
68 40
24 kHz
50 30
32 kHz
40 24
13
Duration of wor k, whe n
the resolution is 16-bit
without compression
Discretization fre-
quency
Typical operating
time* (hours)
Not less than ** (hours)
8 kHz
84 50
16 kHz
44 26
24 kHz
41 24
32 kHz
32 19
14
Duration of wor k, whe n
Discretization fre-
Typical operating
Not less than ** (hours)
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the resolution is 20-bit.
quency
time* (hours)
8 kHz
68 40
16 kHz
38 22
24 kHz
27 16
32 kHz
19 11
15
Suppression outside the band of operating fre-
quency range while tuning an octave
at least 60 dB
16
Average life of the voice recorder
for at least 2 years
17
Average storage time of the voice
not less tha n 2 years, with the implementation of
discharge / charge cycle every three months
18
Battery charge time
Not more than 5 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 levels of sensitivity and tags of record at
operation of voice operated switch)
23
Ability to manually control the recording level
yes (only 16-bit only with resolution and compres-
sion u-law ); from -12 dB to +18 dB in 6 dB.
24
Automatic sound level adjusting
Yes (only 16-bit only with resolution and compres-
sion u-law ); from -12 dB to +18 dB in 6 dB.
25
Logger
Yes
26
System of tags of records in files
tags at the begin ning and at the end o f file s; tags by
pressing the button; tags at VOX activation
* Standard operation time is determined by the results of record time measurements with memory cards
from the delivery set.
** 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.
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Table 3.Light indication of modes and emergencies.
Modes and emergency situations
of the voice recorder
Status of Indicator "Mode"
a)Getting started (when the recorder is
being switching on by the user)
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). After openi n g t he file , indicator "Mode" repeatedly flashes green, or if the accumulator discharged - red. A further indication is possible only by pressing a button.
2. If "dict.ini" file is tasked to operate by the alarm clocks, the indicator
lights up green for 1 second and voice re
corder enters standby mode by
switching the alarm. A further indication is possible only by pressing a
button.
3. If the recorder is set up to operate as voice operating switch, the indicator
lights up for 1 second green, and then lights up for one sec ond orange. A
further indic ation is po s s i ble only by pressing a button.
b) Mono recording mode (after the brief
pressing of control button)
1. If the battery voltage is normal, the indicator repeatedly blinks green.
2. If the battery is low, the LED blinks several times in red.
c) Recording mode with voice operated
switch (VOX) (after a brief pressing of a
button)
After detecting the audio signal of the preset level - similar to normal mode
d) Alarm clock record mode (after brief
pressing of the button)
LED blinks slowly red and green colors, independently from the other re-
cording modes and battery charge level .
e) Standby mode for alarm clocks (Short
time after the brief pressing of the control button)
After brief pressing the button, there are triple-time alternate blinks red and
green.
f) Emergency - incorrect filing system,
the lack of a memory card or fault-of
memory card
After switching the recorder on, indicator turns green, then - red, and then
voice recorder turns off.
g) Status "No free space on the disc"
Indicator, after turning the voice recorder on, glows green for s ome time
(depending on the size of the micro SD and size of file being created), then
recorder turns off.
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