[wdmaudiodev] Re: 10ms latency (wavecyclic)

  • From: uwe kirst <u.kirst@xxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Mon, 19 Apr 2004 14:32:44 +0200

Evert van der Poll wrote:

Hi,

Sonar uses direct kernel streaming (or called something similar). It
bypasses the user mode API's like DirectSound or MME. There actually is a
sample of how to do this in the file list of this forum. The file is called
DirectKS.zip. For a sample it is a bit hard to follow but you can get the
idea.

Evert



Hi,
I know this sample quite well. I get low latencies with my wavecyclic drive + directKS sample app. Sonar does something called "wave profiling". It shows a latency of 10 ms. Maybee someone knows what happens if a driver is profiled.

Uwe

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