[wdmaudiodev] Re: Windows XP GFX for all devices(non-USB too),

  • From: Tim Roberts <timr@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 15 May 2009 14:50:06 -0700

Michail Nikolaev wrote:
>
> I have task - catch all system sound, process it, and put to the output.
> For Vista it is implemented via sAPOs.
>
> But how to do it for Windows XP?
> Using GFX allow process output only for USB devices, but i need
> support for all of them.
> Also, I dont want to replace installed audio driver.
>
> If it possible in correct way in XP? And how(in some words) it can be
> implemented?
> (The best case - adding my filter driver after KMixer driver).

That's the way I've done it -- as a media class upper filter.

Let me know if you're interested in contracting this out.

-- 
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.

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