RE: [Audacity-devel] Audio data conversion in Windows?

[Chris E. <chr...@th...>]

> First thing is to try moving the Audacity gain control while 
> you play.  It's basically a multiplier on the output audio.  
> After a delay of 1/2 second or so, you should see the output 
> changing. If this doesn't work, then the problem is 
> definitely not with Audacity - you're not getting proper data at all.
> 
> If this does work, i.e. you start getting data other than 
> 0x9B, then we know that you're at least getting something we 
> expect. Restart Audacity so that the control is set back to 1.0.
> 
> Have you tried fiddling with the Windows volume control?  
> It's possible that the volume control Windows gives you is a 
> combination of hardware and software.  Windows may be scaling 
> all output samples down by a certain amount.

Dominic, thanks for the response. I ended up just writing a small
program that uses the Windows waveOutOpen and waveOutWrite to send some
raw PCM data to my driver. Turns out that what I send to waveOutWrite is
not what shows up in the driver. I don't have a volume control, 'cause I
don't expose one to the OS for the device. In looking at MSDN, it
appears that maybe kmixer.sys is getting his hands on my data, so my
next step will be to figure out how to get him to leave it alone. So,
Audacity is out of the picture.

Thanks,
-Chris