[wdmaudiodev] Re: AVStream virtual audio driver: different sound quality dependently on the number of CPU cores.
- From: Tim Roberts <timr@xxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 21 Jul 2016 12:52:44 -0700
Alexander Ivash wrote:
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.
Time is an extremely fluid concept in VMs. Some of the VM managers
manipulate the clock interrupts to fool the VM into thinking that no
time has passed when it actually has. That kind of manipulation, of
course, plays havoc with real-time requirements.
You should try this on real iron. If it doesn't fail there, then there
is little you can do.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
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