Laboratory2, LTD
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Version of 21.12.2020
Fig. 3. Tab "Setting the recorder" in
dict.exe
program window.
g) Choice of sampling frequency.
Possible values are 8 kHz, 16 kHz, 24 or 32 kHz. The
higher sound sampling frequency value, the higher quality of the written-down sound, how-
ever the time of autonomous work of a voice recorder is less.
h) Sound resolution.
The voice recorder can record in three formats:
16 bits under u-law
compression
,
16 bits without compression
,
20 bits without compression
. 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 with the record modes in a format
16/20 bits without compression.
i)
Switching on/off logger
. When logger is switched on, all main events will be saved into
internal memory of voice recorder with their time and date. There is also stored voice record-
er production data (Identification number and number of the internal software). At normal
switching off of the voice recorder, the last 48 events will be copied from the internal
memory onto microSD in the INF_REG.TXT file. More detailed information about the log-
ger see in paragraph 4.
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