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the pauses are not saved, then the resulting record
will consist of recorded parts only (signal exceeds
the threshold). These parts will be played one after
another without interruption.
Configuring VAS
Voice Activation System (VAS) is congured
in the EMPlus program by changing two
parameters: VAS threshold level and VAS time.
VAS level can be adjusted from 0 to -55 dB. 0 dB
corresponds to very low sensitivity (the device
records only very loud sounds) and the value of
-55 dB to very high sensitivity (the slightest rustle
is enough for the recorder to start recording). The
best of VAS is achieved experimentally. You can
start by setting VAS level at - 20 dB (after you
have changed the settings, do not forget to press
the button «Apply changes to the Recorder»).
After disconnecting the recorder off the PC enable
recording and place it in the conditions similar
to the planned recording (for example, lecture
in a classroom). With the level of VAS properly
congured, after the desired signal, the recorder
switches to record mode which will be indicated
by a LED ashing. If desired signal stops, and the
VAS time is up, the recorder switches to Signal
Standby mode.
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