[wdmaudiodev] Re: Intercepting Audio Data Going to Sound Card
- From: e-t172 <e-t172@xxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 17 Jun 2010 20:29:24 +0200
On 17/06/2010 20:15, Tim Roberts wrote:
It's actually possible to install
a GFX APO on your own, but you can't release such a thing unless you
also supply the audio card driver.
Why?
You can use your MSVAD scheme, as long as you get another application
involved. Have MSVAD ship the data to your application, and have the
application forward it to the real sound card.
I implemented this solution using Virtual Audio Cable and WASAPI
Exclusive mode. It works well, but there are some catches:
- it won't be glitch-free if the system is under heavy load (even if the
process priority is set to Realtime and MSCSS is used)
- this solution is quite convoluted, and will add a non-negligible
amount of latency to the audio path
That's why I'm currently rewriting my filter as a GFX sAPO.
--
Etienne Dechamps / e-t172 - AKE Group
Phone: +33 6 20 41 09 29
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