Speech Technology Center ANF II, Operating Manual

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DEVICE CONTROLLING VIA PC
61
7.9.3
Voice activation
In the Voice activation section (figure 139) you can control and change current settings of voice activation.
Figure 139 – Settings tab. Voice activation
The
State
options allow selecting the state of voice activation: on or off.
The
Start threshold
slider allows to adjust the level of the input signal (in dB), the exceeding of which, starts the recording.
Start threshold can be set in a range from
0
to
72
dB with
1
dB pitch.
The
Start delay
slider allows setting the time of recording delay when the voice activation starts. Start delay can be set in a
range from
30
to
200
ms with
10
ms pitch.
The Stop threshold slider allows setting minimum level of input signal (in dB). If signal level becomes lower than that value,
the recording will stop. The stop threshold can be set in a range from 0 to 72 dB with 1 dB pitch.
The Stop delay slider allows setting the time slot (in ms) from the moment when voice activation stops the recording, until
the end of it. Stop delay can be set in a range from 500 to 10000 ms with 500 ms pitch.
Start threshold value always must be higher than stop threshold; otherwise, you will see a warning message (figure 140).
Figure 140 – Warning message about inappropriate parameters