KORG PA4X 76 - Manual (Page 876)

872| Audio In/Out and the Voice Processor
Editing the Filter effect
While in the Voice Preset > Filter & Hard Tune page, you can program the
Filter effect.
This effect uses steep filters to emulate the sound of radios, phones and
devices that generally degrade the audio signal.
Choosing the Filter set
▪ Use the Set pop-up menu to choose settings for the Filter block.
The Routing and Gate Threshold parameters are not part of the set.
Adjusting the level
▪ Use the Level parameter to adjust the level for the Filter effect.