[wdmaudiodev] Re: Multichannel audio device seen as stereo

  • From: "bart@xxxxxxxxxxxxx" <bart@xxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 07 Nov 2003 08:35:03 +0100

Stephan Kappertz wrote:

> Did you set the speaker layout for your device to 7.1 in Control Panel |
> Sounds and Audio Device Properties | Advanced Audio Properties ?
>
No, I can't. The 'Advanced' button is grayed out.

> WinDVD checks this property and disables/enables multichannel support based
> on the entry. The default value for this property is stereo, no matter how
> many channels your device has.
> 
Ok, so it looks that's the problem....

> Moreover if you support this property in your minidriver, you might be
> handling it incorrectly, making Windows believe that you don't support
> anything else than KSAUDIO_SPEAKER_STEREO.
> 
Could it be because I do not have the topology part of the miniport? I thought
I would not need it as my device has no mixing and volume control on it.

Regards,
                Bart
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