Re: Is it time for remove (crap) ALSA from kernel tree ?

Rene Herman
2007-06-28T02:32:32Z

On 06/28/2007 03:58 AM, Rene Herman wrote:

> to figure it out. If you need to specify an ALSA device somewhere, make
> sure it's not the old "hw:0" but "default" (or "default:0" for the first
> card, "default:1" for the second, ...). The "hw:N" devices don't do
> mixing.

Slight correction/expansion -- don't do _software_ mixing. Some cards can do
hardware mixing and in that case, "hw:N" or, specifically "hw:N,0", "hw:N,1"
and so on devices are available as hardware mixed devices.

Try a cat /proc/asound/card0/pcm0p/info and check the "subdevices_count" for
the number of hardware mixed playback devices you have available. If it's 1,
your card should've been configured (by ALSA itself) to use software mixing
by default and if it's higher than 1, it should not have been and will use
hardware mixing...

Rene.