[wdmaudiodev] Audio noisy

  • From: Girish <girishsadananda@xxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 8 Jul 2010 16:57:47 +0530 (IST)

We have implemented two audio mini drivers for Bluetooth using AVStream, One 
for Handsfree ( communication device i.e With render and capture pins) and the 
other for music streaming ( playback device i.e with Render pin).
Both the drivers works fine individually i.e audio streaming and skype call 
works fine. But we have a problem in the below mentioned scenario.
1. Music streaming through playback device. Pause the streaming
2. Start a skype call, it uses communication device ( Handsfree).Accept the 
call.disconnect the call
3. Resume the music streaming from Windows Media Player. Audio is noisy. But if 
we change the track / close and open the media player, audio is perfect.  
   This issue is seen only after disconnecting the call, otherwise pause/resume 
works fine. 
This issue is seen only on Windows 7.
I have tried disabling the playback endpoint for a short while using 
KsFilterFactorySetDeviceClassesState. But didnt help.
Any pointers on how to debug this would help.

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