6
www.ts-market.com
resulting recording will consist only of the recorded parts (when the signal exceeded the threshold)
without taking into account pauses. These parts will be played one after the other without interruption.
Configuring VAS
1. To configure the voice activation system (VAS), there are two parameters - the VAS level and the
VAS time.
2. The VAS level is adjusted from 0 to -55 dB, while it should be taken into account that at 0 dB, in order
for the recorder to turn on for recording, you should practically shout into the microphone of the
recorder, and at -55 dB, the slightest rustle is enough and the recorder will start recording.
3. The VAS time is adjustable from 1 to 15 seconds. If you set the VAS time to 1 second, then the
recording inside the file will break into many pieces when pauses in the conversation for more than 1
second. If you set 15 seconds, then after any knock, the recorder will continue recording for 15 seconds,
including silence, which is also not very good in some cases. Therefore, we recommend setting the VAS
time to 7 seconds.
4. It is more difficult with the recommendations of the VAS level, since the recording conditions can be
completely different (in an empty room, in an apartment with carpets, on the street or in a car). The
correctness of choosing the VAS level will come with experience, but for now we recommend doing
this — set the VAS level to, say, 20 dB (do not forget to press the button in the RecManager “apply
settings to the recorder" after changing the parameters) after disconnecting the recorder from the PC,
turn on the recorder for recording and place it in the place where the recorder will be located during
recording. With silence that does not need to be recorded, after turning on the recorder for recording,
the recording will last for a few more seconds (this is the VAS time that you set in the settings), after
which the recorder will switch to standby mode for a useful signal (the sound that you need to record)
what will be evidenced by the dim glow of the LED. If the VAS level is set correctly, after you start
talking, the recorder will switch to recording mode, which will be indicated by the flashing of the LED.
After the end of the speech and the VAS time, the recorder should switch to the standby mode of a
useful signal.
5. If the voice recorder does not enter the standby mode of a useful signal during silence, then the VAS
level must be changed closer to zero (if it was -20 dB, then -17 dB must be set).
6. If, when a useful signal appears, the recorder does not switch to recording mode, then the VAS level
should be changed closer to -55 dB (if it was - 20 dB, then it should be set to -25 dB).
In recorders, it is possible to use the VAS system with timers at the same time, while it should be
taken into account that in this case it is not necessary to turn on the recorder for recording, but it will
turn on for recording itself when the time that you set on the timer is reached, taking into account
that you have synchronized the clock a voice recorder with time on a PC.
