====== Alsa Sound Configuration ======



===== intel-hda setup =====

I like being able to play multiple audio steams at the same time through one sound card.  

First, run (as root):

<code bash>
# system-config-soundcard
</code>

This will create a /etc/asound.conf file based on your soundcard (mine is the intel-hda card).

(this is what mine looked like:)

<code>
#Generated by system-config-soundcard, do not edit by hand
#SWCONF
#DEV 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0
</code>

\\ 
After running the above command, I had to add some dmix (software sound mixing) settings to my /etc/asound.conf (([[http://www.alsa-project.org/alsa-doc/doc-php/asoundrc.php?module=hda-intel]])):

<note note>
We basically just customize our default sound card's pcm settings (my default card is card 0).  Notice that I customize pcm.card0 and then add a pcm.dmixer (which is referenced in pcm.card0)
</note>

<note important>
Make sure you set the ''pcm "hw:0,0"'' in the pcm.dmixer configuration area to match your default card
</note>

<code>
#Generated by system-config-soundcard, do not edit by hand
#SWCONF
#DEV 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0

pcm.card0 {
        type plug
        slave.pcm "dmixer"
}

pcm.dmixer {
        type dmix
        ipc_key 1025
        slave {
                pcm "hw:0,0"
                period_time 0
                period_size 4096
                buffer_size 16384
                periods 128
                rate 44100
        }
        bindings {
                0 0
                1 1
        }
}
</code>

==

{{tag>:linux:fedora:fc6 :linux:fedora :linux}}