Originally Posted by stevekale
Theta agree that a Casablanca connected via HDMI to a motherboard is meant
to present itself as a multichannel device. (In Windows 7, right-click on the sound button, select Playback Devices, identify the option related to the HDMI port e.g. HSR5 Intel (R) Display Audio, select Configure and one should see options under Audio Channels for Stereo, 6 Channels and 8 Channels. I see only Stereo.) I have played stereo files via JRiver over HDMI to the CB but because the CB EDID isn't working to present multichannel capability I've not been able to play multichannel files.
Yes, people play multichannel files over HDMI via JRiver in a "CAPS"/audio server build. When I encountered the issue, I contacted a reviewer of my current (soon to be replaced) motherboard to ask about the problem.
Andrew was very helpful and pointed me to EDID issues being the most likely culprit for the lack of ability to see the CB as a multichannel device. (Scroll down to Media Performance in the review. In his case, he was using a Denon processor.)
I have had the Mac Mini directly connected via HDMI to the CB-IIIHD and it too uses "Intel HD Audio" and the computer does identify the Casablanca correctly as HSR5 and has played 88k & 96/24 multichannel tracks.
But I believe your right insofar as there may be a problem with playing 176k files which I believed was a CB-III problem for me.
It's been awhile since I've been set-up directly to the CB-III via HDMI from the Mini because I've had the HDMI connected to a VP so I could feed the Gen. VIII my files above 48k via digital coax from the computer by way of the VP since I have not installed the new Digi-out card and this was a work around.. The video processor feeds HDMI to the CB-III simultaneously for surround sound music but have not been able to get CB-III to play 176k surround tracks. If seems fine with other freq's in surround.
In about 10 days or so I'll finally get the new Digi-out card installed, which has been sitting here for many, many months and reconnect HDMI directly to CB-III.
So, am I to expect that the CB-III will or will not play 176k surround files via HDMI from a computer using "Intel HD Audio". I know the 176k will pass through the Digi-out card to the Gen. VIII but what about the channels the CB-III actually has to handle?