[wdmaudiodev] Re: [wdmaudiodev]
- From: franco@xxxxxxxxxx
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Wed, 29 Aug 2007 10:47:25 +0200
Dear mihaela@xxxxxxxxx,
Please note that I am out of the office but will endeavour to return your email
upon my return.
Best regards,
franco@xxxxxxxxxxx
-----8<---------
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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