[P-I H]

I have a Geforce GT520 card that's work with AE.
Both Output Audio Device and Output Audio are set to hdmi:CARD=NVidia,DEV=3. The same as used by cdhesse.
With the AE build from 14/4 on a Ubutu 12.04 beta release I am able to play videos these audio streams:
DTS
DTS/24
Dolby 5.1
Dolby True HD
PCM 2.0 plays with distortions
with DTS Master Audio the video looks fine, but there is no sound.
On a Harman Kardon 355 Reciever with 5.1 speaker configuration.

The computer has also another audio card with a C-Media 8768 chipset connected to a Yamaha reciever over SPDIF and in this case a 2.0 speaker configuration.
With Audio Output set to Optical/Coax and Audio Output Device set to C-Media CMI8768 iec958, I am able to play videos with these audio tracks:
DTS
DTS 96/24
Dolby 5.1
Dolby True HD that plays Dolby Digital
DTS HD Master Audio, that plays DTS
with PCM 2.0 the video looks OK, but there is no sound.

It is hard to know if my problems depend on wrong configurations or AE, as there are no information available, as far as i know, about how to configure a system to support AE.