Yeah I've tried WASAPI with my MOTU, and couldn't get it to work. Is it an audio interface driver issue? It works for me with my MOTU and Audition 3.0.1, but not Audacity.OK it's working:
View attachment 84240
The secret sauce it to select WASAPI.
View attachment 84241
Things to note in the above screen shot.
Dolby Reference Player is using LoopBe audio interface to "Play"
LoopBe audio interface is configured to 48KHz 24bit 16 channels.
It's greyed out in windows sound recording properties --> advanced, because I have "locked" it in the LoopBe monitor.
Audacity is using the WASAPI LoopBe input, set for 16 channels (see first screenshot).
And I don't even know what LoopBe is?