[wdmaudiodev] AVStream: sound quality depends on the usage, why?

  • From: Alexander Ivash <elderorb@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Tue, 28 Jun 2016 13:05:01 +0300

After a lot of trials and errors I finally managed to register driver
as virtual mic. But now I confronted another issue. Dependently on how
I'm testing driver I can hear different types of sound corruptions.

1. If use via graphedit as 'WDM Streaming Capture Device' - no problem
at all, everything works just fine.

2. If use via graphedit as 'Audio Capture Sources' - sound cropped,
but at least sounds similar to what it should be

3. If use checkbox 'listen' in mixer's properties - sound is
completely distorted

4. If I select virtual mic in skype - sound quality is something in
between 1 & 2 - sound is similar to what it should be, and nearly not
cropped, although delayed.

What could be the reason for such behaviour? I'll check release build
of the driver with no debug tracing enabled to make sure debug build
is not the root cause.
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