[wdmaudiodev] Re: AVStream virtual audio driver: different sound quality dependently on the number of CPU cores.

  • From: 若水 <shlikewater@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 21 Jul 2016 18:36:01 +0800

Hello, Alexander:
There is not enough information to check the problem. Could you give us the
inf file, filter descriptor, pin descriptor etc. You can send me your
project, if possible.

Best Regards,
Shang Jing

2016-07-21 18:29 GMT+08:00 Alexander Ivash <elderorb@xxxxxxxxx>:

What could be the reason for the following behaviour:

On one Windows 7 x64 VM (with 1 CPU) driver works fine (well, with
rare audio artifacts)
On the SAME VM but with 2 CPUs driver works awfully, sound is heavily
distorted.

Behaviour seems to not depend (or influence is very low) on using

KSPIN_FLAG_INITIATE_PROCESSING_ON_EVERY_ARRIVAL or
KSPIN_FLAG_ASYNCHRONOUS_PROCESSING

What other things can I check?

Regards, Alexander
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