[wdmaudiodev] Re: Intel SST + I2S
- From: Tim Roberts <timr@xxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 9 Jul 2013 09:11:25 -0700
Preston Fick wrote:
> I'm looking in to performing audio processing on a stream that uses
> Intel SST as a WDM audio driver and transports audio to a RealTek
> codec through the I2C. I've been unable to find a view of this type of
> driver stack and was curious if anyone has experience with this. I'd
> assume either writing a lower filter driver (via the gfxswap.xp
> sample) for the SST stream is the way to go, but unlike WDM audio I've
> worked with in the past or UAA I don't see a clear path to perform
> this. Any idea if this will work before I start down that path?
What kind of audio processing do you want to do? With the new (Vista+)
audio engine philosophy, the GFX APOs are considered part of the audio
hardware, and are installed along with the audio drivers. You can't add
your own APOs, unless you're doing it just for your own experimental
purposes.
If you have an application that needs to do audio processing, it can add
whatever filtering it needs, but Microsoft wants to make sure that other
applications are not forced to use your filtering. Prior to Vista, many
people were writing clever (or not-so-clever) audio tweaks, and they
ended up making latency so unpredictable that it was very difficult to
write professional audio applications.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/
Other related posts:
