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47
KP-812 Keypanels User Manual
Service Menu, DSP Func
This service menu item accesses the digital signal processing feature.
1.
Select DSP Func, then tap the encoder knob.
Filtering displays. Turn the encoder knob to see the other DSP options: Filtering,
Gating, Metering, Mixing.
Refer to one of the following paragraphs for further information on each of these options:
Filtering
Filtering lets you add a 9.6 kHz notch filter to one or more audio sources. This can be useful
in a few cases when the keypanel data port signal is being heard in the audio line due to cable
routing problems.
1.
Select
Filtering
, then tap the encoder knob.
Microphone displays. Turn the encoder knob to display other options for filtering.
2.
Once you have chosen the
source to filter
, tap the encoder knob.
¡
None displays to indicate that no filtering is selected.
3.
Turn the encoder knob to display
Notch.
Notch displays
4.
Tap the encoder knob.
¡
Notch displays. The arrow indicates that the notch filter is now selected.
5.
Hold the encoder knob for 1 second to exit.
6.
Run
Service Menu, Save Cfg
to save the change.
Gating
Gating minimizes or eliminates background noise problems by shutting off an audio source
when the sound level drops below a certain threshold.
1.
Select
Gating
, then tap the encoder knob.
Microphone displays. Turn the encoder knob to display other options for filtering.
Microphone, Matrix, Aux 1
2.
Once you have chosen the
source to gate
, tap the encoder knob.
Gating displays to indicate that no filtering is selected.
3.
Tap the encoder knob.
¡
Gating displays. The arrow incidates that gating is now selected.
4.
Hold the encoder knob for 1 second to exit.
5.
Run
Service Menu, Save Cfg
to save the change.
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