[wdmaudiodev] Re: Multiple Audio Devices

  • From: Eugene Muzychenko <emuzychenko@xxxxxxxxx>
  • To: Tim Roberts <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Thu, 23 Mar 2006 09:47:29 +0600

> he cannot drive two separate audio cards simultaneously from two
> separate processes. He says that when one process goes foreground,
> audio from the other process stops.

He definitely does something incorrectly. Maybe he uses DirectSound
interface in the compatible mode. The cooperative level should be set to
DSSCL_PRIORITY and buffers should be created with DSBCAPS_GLOBALFOCUS
flag.

> I wanted to ask if there were any architectural reasons for this.

No such reasons exist.

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