Pro Audio Support

Q:
Digital Performer 4.6 and mono-to-stereo UAD-1 plug-ins
 
A:
In Digital Performer 4.6, mono-to-stereo UAD-1 plug-ins do not pass audio. This issue will be addressed in a future UAD-1 update.

The current work-around is to convert the mono track to stereo. Alternately, you can insert a non-UAD-1 plugin in MISO mode (it can be bypassed) in front of the UAD-1 plugin which forces the UAD-1 plugin to operate in stereo-in/stereo-out (SISO) mode.