Thanks Mac,

That appeared to do the trick.. That is I went in and cleared, exited, then re-checked the full duplex option in RB Audio configuration. Didn't get a chance to test until a few minutes ago, but now I can play the WAV file loaded into track 1 and record on from the mic/PA on track 2. So that is great.

But there is another wrinkle.

The output from the sound card is being fed into the playback input on my Kustom PA, and the record out from the PA is routed to the Aux input on the computer (sound card).

The record output comes after the mixer portion of the PA and before the final Monitor and Master level controls and equalizers. The playback input is after the final Monitor and Master equalizers and definitely does NOT route back in any way to the record output or the mixer portion of the PA.

Even with the playback volume controls set to 0 so no sound is heard through the PA speakers so there could be nothing picked up via the mics track two winds up with a low volume recording of the WAV in track 1. If I sing or talk into the mic that is also recorded.

If I turn the volume slider on track 1 to 0 then track 2 only gets the microphone input and not the backing track audio.

Again the signal path for the playback input on the PA does NOT route through any of the PA inputs and also from previous recording attempts did not appear to route through the record outputs, so I don't think that would be the issue here but I'll check again. That is, in order to record audio coming from the computer I would have to move the audio output from the playback input jacks and bring it in through the PA mixer, which is not what I'm currently doing.


Have you run into this before? is there some option or setting that I'm missing that is causing the audio being played back on track 1 to be recorded on track 2? If you haven't seen this before I'll try pulling things out of the case and disconnect the aux input to the PC, and no the PC does NOT have a microphone built in.

Thanks again,
Burt