[wdmaudiodev] dwChannelMask

  • From: wdm <wdm@xxxxxxxxxxxxx>
  • To: "'wdmaudiodev@xxxxxxxxxxxxx'" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Wed, 5 Mar 2003 17:44:36 +0100

Hi everyone,

development of my generic ASIO-driver (www.asio2ks.de) 
is proceeding nicely. Quite a few cards & applications
already work pretty well with it.

There is one things so far which I could not figure out.
If I have a multi-channel-card (like 5.1 or so) Should
it be possible to stream to only specific channels?
If I want to stream to channels 1 and 4 (leaving out
2 and 3), could I just set nChannels=2 and dwChannelMask=9?

Or to use only a mono-channel streamed on the right
channel of a stereo-capable soundcard, could I set
nChannels=1 and dwChannelMask=2?

It seems that not all cards support such procedures.
Is there any way I can find out if a card would
support this mode of operation?


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