On Wed, 19 Nov 2003, Steve deRosier wrote:
> Mark,
>
> I don't know if it's the same effect or not. We're working on an
> "embedded" Linux device. It has a full Linux kernel and basically is a
> hand-built distribution of stock Linux stuff, but is very stripped down
> and some of our apps are custom. As we're not using OSS in any way
> (neither apps nor the Alsa OSS emulation layer) so I can't speak to that.
>
> One of our engrs here seems to think it's a hardware issue also, and the
> only way to get our apps to deal with it is to on the stop command push
> values into the pcm buffer that ramp down to 0 and then fill a full
> buffer-size number of samples of 0 into the buffer before closeing it.
I think that you can attenuate the volumes in a few ms to reduce the big
speaker (volume) move, but yes, doing the slow attenuation is the right
thing when hardware doesn't have the click compensation itself.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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