[wdmaudiodev] Issues with MS AEC.

  • From: "Korolev, AlexeyX" <alexeyx.korolev@xxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 22 Jul 2003 18:44:51 +0400



I'm writing full-duplex audio processing code. I've added MS AEC node to
the driver stack. In most cases AEC is working fine. 

But, if user starts playing sound using Wave Out interfaces (for example
using Windows Media Player) before our driver has inserted AEC to the
driver stack, AEC doesn't work. I can't insert AEC node in topology when
user-mode application is using Wave Out. 


Does anybody have information about it? Is there any known workaround
for this problem?




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