[wdmaudiodev] Re: Vista Audio Architecture

  • From: Tim Roberts <timr@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 28 Sep 2006 16:40:11 -0700

Hakon Strande wrote:

> All legacy driver models should continue to work for basic streaming
> in most cases but AEC and Mic Array processing are application graph
> DMO effects in Vista (and hosted by the RTC API as well) and does not
> belong in the driver layer in our vision of Windows and our desire to
> enable more powerful and flexible Windows application experiences
> going forward.

I understand your goal here, but how does this philosophy reconcile with
a client's quite reasonable desire to have his echo cancellation operate
globally over all audio producers and consumers?  It's not clear to me
that an application-centric focus, using DMO effects in an app graph,
can provide the same end-to-end control that one has in XP.

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

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