First, open up a terminal, type alsamixer and make sure, that nothing is muted (MM)
Second, go to /etc/mpd, and open up mpd.conf with your favorite text editor. Press Ctrl+F, and look for the line audio_output. Edit the block to look something like this:
- Code: Select all
name "Sound Card"
When you are finished with the editing save the changes, and exit the editor.
The last thing you will have to do is restarting mpd. In a terminal type: /etc/rc.d/mpd restart. Don't forget to restart firefox too, just in case.
This is why this occurs:
* The sound card does not support hardware mixing (uses dmix plugin)
* An application does not work with ALSA with it's default settings
Detailed description can be found here.
This tutorial was taken from the official Arch Linux wiki.