So I have solved and answered one of my problems. The HDAV1.3's console had a black/green button labeled "GX" in the lower right hand corner. It was green. I made it black by clicking it and restarted foobar. Now I don't have stereo going to all speakers. This is all inspite of the fact no DSP functions were lit in blue and the EQ MODE says disabled (except this is in black). I never clicked the GX button, it must be set that way as defualt for 5.1 set ups?
However, I still can't get wasapi to send unmolested multich pcm to my onkyo as it still shows 96khz and 5.1 instead of switching to 44.1khz and stereo. Again, the wasapi works great if I use wasapi digital output option.
I also found a dts decoder component called foo_dts on google. Works good, except how do I send the dts to my receiver to decode. Right now, no matter which output I select in foobar or nero showtime, my reciever does not show "dts" on it's display. This holds true for PCM and MULTI PCM over HDMI.
Premise, a FREE home automation program. Open-source Z-Wave Premise Module found here.