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Not showing DTS-HD MA or 192kHz support - Win 7 AMD HDMI Audio 6950

Last response: in Graphics & Displays
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July 17, 2012 5:54:14 PM

I'm running a Radeon 6950 and using the HDMI audio function and on Windows 7 supported formats it's only showing up to 48kHz and DTS-HD. I'm hooked up to a 7.1 receiver and I'd like to get the full range (DTS-HD MA and 192kHz) but for some reason it's not showing up as supported. I'm running CCC 12.7 beta. Any ideas on what's wrong?
July 17, 2012 6:28:47 PM

What software are you using ? I play DTS - MA using my 6870 to my AVR. I used Power DVD 12
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July 17, 2012 6:32:22 PM

It's not a media software issue but for the record it's MPC-HC with Reclock Wasapi. The issue is somewhere else. Here's a screen of what Windows says for Supported Formats:


I SHOULD have 192kHz there as well, along with DTS-HD MA. Not getting them though...
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July 17, 2012 6:41:38 PM

I just checked mine, I do have 192. Also DTS-HD is same as DTS - HD MA , There is just 1 lower quality, DTS High Resolution. But afaik DTS - HD is MA.
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July 17, 2012 6:56:33 PM

sl4y3r said:
I just checked mine, I do have 192. Also DTS-HD is same as DTS - HD MA , There is just 1 lower quality, DTS High Resolution. But afaik DTS - HD is MA.


Well regardless I should have at least the 192kHz listed, if not also the DTS-HD MA.
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July 17, 2012 7:02:00 PM

Found the problem. In CCC I have my display hooked up using DVI, with HDMI goign to my receiver. I set the resolution of the HDMI going to receiver as 640x480 because I figured I might as well set it as low as possible since I'm only using it for audio anyways. Once I switched it to 1080p the additional formats opened up. Very strange how that works... Seems like the video resolution shouldn't have an effect on the audio formats supported but, it does.
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Best solution

July 18, 2012 4:51:12 AM

Oh yea..i wasn't getting the HD audio decode option when I had set my avr to a non hd res..thats before getting my tv.I found that incredibly strange too
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July 18, 2012 5:04:54 AM

Best answer selected by robollama.
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July 4, 2013 1:52:22 PM

How graphic card determines what sample rate is supported is actually related to the resolution set on the HDMI display (or AVR). Without going into the HDMI spec, let's just say higher resolution requires higher clocking which high sample rate also requires.

Therefore, the behaviour is not strange after all.
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