Laboratory2 SOROKA-17E Quick start guide

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SOROKA – 17E
DIGITAL VOICE RECORDER
OPERATIONAL MANUAL
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CONTENTS
1. PRODUCT SPECIFICATION AND DESCRIPTION OF ITS OPERATION 6...........
1.1. Purpose of the voice recorder. 6.....................................................................................................................
1.2. Basic specifications of the voice recorder are listed in Table 2. 6...............................................................
1.3. Light indication of operation modes and battery charging modes. 7.........................................................
1.4. Design and operation of the voice recorder. 9..............................................................................................
2. VOICE RECORDER USAGE 10..............................................................................
2.1. Operating limitations. 10................................................................................................................................
2.2. Preparation of voice recorder for usage. 10..................................................................................................
2.3. Rechargeable battery charging 10.................................................................................................................
2.4. Setting voice recorder parameters. 11...........................................................................................................
2.5. Usage of the voice recorder. 11.......................................................................................................................
2.6. Creating a configuration file. 12....................................................................................................................
2.7. Verification of files digital signatures. 14......................................................................................................
2.8. External microphone connection. 17.............................................................................................................
3. SYSTEM OF VOICE RECORDER LABELS 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 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. 22....................
6.2. The Voice Recorder in special packaging may be transported in closed vehicle (rail cars, containers,
cars, water [sea or river] transport), as well as in sealed cockpits of planes and helicopters. 22............
7. MANUFACTURER'S WARRANTY 22.....................................................................
7.1. The manufacturer guarantees the accordance of the voice recorders to the technical requirements,
providing that the customer observe instructions for operating conditions, transportation and
storage, set up by this manual. 22..................................................................................................................
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7.2. The warranty period is 12 months within the warranty period of storage. 22.........................................
7.3. The warranty period of storage is 18 months from the date of production, if the charge / discharge
cycles 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 manufacturer’s fault within the
warranty period, troubleshooting and replacing (if needed) of the voice recorder and its components
are made at the manufacturer's expense. 22................................................................................................
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The operation manual contains data on technical characteristics, the device and the principles of
work, rules of storage, instructions on operation and maintenance, necessary for the correct operation
and full use of technical capabilities of a SOROKA-17ЕRecorder.
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
+
2. Memory card microSDHC
1
32GB
3. The adapter for battery charging
1
+
4. Passport
1
+
5. USB cable to charge the recorder
1
+
6. CD with software and user manual
1
+
7. Packaging
1
+
8. CardReader
1
+
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1. Product specification and description of its operation
1.1. Purpose of the voice recorder.
The voice recorder Soroka-17E 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.
1.2. Basic specifications of the voice recorder are listed in Table 2.
Table 2. Specifications of the voice recorder SOROKA- 17E.
№
Parameter
Description
1
Dimensions
26,5x26,8x5,3
2
Operating temperature range
-20° C to +40° C
3
Recording file format
«.WAV»
4
Type of memory and filing system
Removable memory cards 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 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)
At least ** (hours)
8 kHz
65
39
16 kHz
46
27
24 kHz
33
20
32 kHz
27
16
13
Duration of work, when
the resolution is 16-bit
without compression
Sample rate
Typical operating
time* (hours)
At least ** (hours)
8 kHz
56
33
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* 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
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Table 3.Light indication of modes and emergencies.
Modes and emergency cases
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 opening the file, indi-
cator "Mode" repeatedly flashes green(internal microphone) / orange
(external microphone), or if the accumulator discharged - red. A fur-
ther indication is possible only by pressing a button.
2. If "dict.ini" file is tasked to operate by the alarm clocks, the indi-
cator lights up green for 1 second and voice recorder 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 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(internal microphone) / orange (external microphone).
2. If the battery is low, the LED blinks several times in red.
c) Recording mode with voice oper-
ated switch (VOX) (after a brief
pressing of a button)
After detecting the audio signal of the preset level – similar to nor-
mal mode
d) Alarm clock record mode (after
brief pressing of the button)
LED blinks slowly red and green colors, independently from the oth-
er recording 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 sys-
tem, 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 some
time (depending on the size of the micro SD and size of file being
created), then recorder turns off.
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Charge modes light indication of the rechargeable battery is shown in Table 4.
Table 4. Charge modes of light indication of the voice recorder rechargeable battery
1.4. Design and operation of the voice recorder.
The appearance 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
Indicator "Charge" lights green
b) Charge of the rechargeable battery
indicator "Charge" lights red
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The adapter
for connection
of the charger
Мemory card
Operating
mode
indicator
Inclusion
button
Battery charge
indicator

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2. Voice recorder usage
2.1. 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;
b) Protect voice recorder from mechanical shocks – severe bumps may lead to
possible microphone destruction. If the voice recorder received mechanical damage during
operation and this led to its failure, it is not covered by warranty.
c) Do not allow dust and moisture on the microphones, as it can lead to significant
deterioration of the digital microphone performance.
2.2. Preparation of voice recorder for usage.
It is strongly advisable to read carefully this Manual before starting to use the voice
recorder.
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 cracks, chips, dents. Metal
parts should not have any traces of corrosion.
Before the work, it is necessary to configure the voice recorder parameters according to
chapter 2.4 of this document.
Check the recording length of the voice Recorder in accordance with Table 2.
Check the microphone operation, make and listen to test recordings on your PC.
2.3. Rechargeable battery charging
Connect the charger to the voice recorder via the adapter from a set of delivery and
then plug it in the s
If the battery is discharged, the indicator "Charge" will light up red. Once fully
charged, the battery indicator "Charge" will turn green. Charging time of a fully discharged
battery is approximately 4 hours.
Attention! If you want to keep recorder unused for more than a month, it is needed
first to fully charge it.
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