Re: alsa Not Working on CentOS 7

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



gw1500 wrote on 10/20/2015 04:20 PM:
> I apologize if this is a duplicate post but I think something happened
> to my subscription and I had to resubscribe.
>
> I just installed alsa (1.0.28-2) from the CentOS 7 repository and cannot
> get it to work. When I try a known good 'wav' file with 'aplayer' all I
> get is a continuous hiss. Can someone help me trouble shoot this? TIA.


Try this solution (from my ALSA-solution on Debian; I've removed pulseaudio):

As root determine the sound card number you want to use as the
default sound card by issuing the shell command
   # aplay -l

Save and replace your /etc/asound.conf by the following one
and replace therein the "card" number.

Reboot

Verify that the virtual device named "default" is listed under
   # aplay -L

In your applications set the audio device to "default".

Flash plugin by default uses the "default" device, but
for vlc in ~/.config/vlc/vlcrc one must manually disable
the following entry by putting a # in front of the line
   alsa-audio-device=

This solution also allows multiple apps to share the same sound card at the 
same time.


# /etc/asound.conf
# All AV-apps should/must use the device "default" for sharing to work

pcm.mymixer {
     type asym

     playback.pcm {
         # See plugin:dmix at 
http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html
         type dmix

         ipc_key  10001
         ipc_perm 0660
         ipc_gid  audio

         slave {
             channels 2

             pcm {
                 type hw
                 card 1
             }
         }
     }

     capture.pcm {
         type null
     }
}

pcm.!default {
     type plug
     slave.pcm "mymixer"
}

ctl.!default {
   type hw
   card 1
}





------------------------------------------------------------------------------
_______________________________________________
Alsa-user mailing list
Alsa-user@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-user



[Index of Archives]     [ALSA Devel]     [Linux Audio Users]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [Yosemite Photos]     [KDE Users]     [Fedora Tools]

  Powered by Linux