[wdmaudiodev] audio filter XP and Vista
- From: Mihaela Laura Dumitrache <mihaela@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Wed, 29 Aug 2007 11:39:28 +0300
> Hello
>
>
> I want to write a driver filter capable of trapping any kind of sound input
> signal (from webcam microphone, from Line input or Microphone input of a
> sound
> card) and capable of applying effect on the sound like Pitch, and any other
> sound effects.
>
> My problem is that I need this driver to be used on XP and Vista.
>
> For USB Audio, the solution, I think, is to write a lower filter driver that
> could intercept the streaming and applies the effects. This solution can be
> used for both systems: XP and Vista.
> For USB Audio on XP, I saw that can be used GFX Filters as an alternatively
> solution.
>
> But for sound card there is any solution? What is your opinion? I looked a
> lot
> for any documentation but found none about this part.
>
> For Vista, I saw that the solution recommended is sAPOs, but for it there are
> some samples on DDK and 2 docs on Microsoft site and that it is all, no more
> details.
>
>
> Thanks
> Mihaela
>
>
>
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