[wdmaudiodev] help on MSVAD

  • From: Arijit Paul <arijitpaulin@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Sat, 28 Oct 2006 23:28:00 -0700 (PDT)


I have done lots of ground work, but could not find any satisfactory

explanation on this. My requirement is like that - i will have an 

pseudo audio driver registered. For one of my application (voice chat

application), I will select this driver for audio i/p and o/p.

Application will deliver any incoming voice to the pseudo driver for

audio o/p (in normal case, it would have been given to the sound card 

driver in the system). The pseudo audio driver will forward this voice

to somewhere else(lets say X). The pseudo audio driver will get user

voice i/p from X and forward it to the voice chat application (in that 

case X is acting as a microphone source).

Initially I was thinking it won't be possible in windows. Then I came

across MSVDM where they have written a driver for storing voice to a

file instead of o/p it to sound card. I was thinking to tweak this for 

my purpose.  Will it be possible to make this work for our requirement? 

Also, I heard a lot about kernel streaming. Do I need to devlop any expertise 
on that too.

It will be helpful  if you can tell me  what  are the  things I need to

know  to develop this driver.  I have never  worked on audio  driver in

windows. Also, I heard there are some bugs in MSVAD which have been fixed. Do 
you have any pointers on that?

An early reply will be very much appreciated.

Any pointers or help in this regard will be highly appreciated.



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