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The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system.

Use ALSA on with Applications requiring PulseAudio

Using applications which require PuleAudio on systems which only have ALSA installed can be accomplished through the use of apulse which is a pulse emulator for ALSA.

Install apulse

Install apulse from the AUR using a your preferred package manager or the command:

user $ pamac build apulse

It is built from source so it may take some time to install. Once it is done, create a basic config file using the command:

user $ cp /usr/share/apulse/asoundrc.sample ~/.asoundrc

Using apulse

Using apulse is a simple typing apulse <program> in a terminal. For example:

user $ apulse /usr/lib/firefox/firefox

If all is working, you should now have sound in Firefox without needing pulseaudio

Selecting the Primary Audio Device

If your system keeps on using the wrong device (HDMI instead of PCH or vica versa for example), you can force ALSA to use the correct device. Start by getting a list of your audio devices with the command:

user $ cat /proc/asound/cards

Note the number of the sound device that you want to make the primary. Then using a text editor, put the following into /etc/asound.conf (You may need to create /etc/asound.conf if it doesn't already exist).

user $ sudo nano /etc/asound.conf
defaults.pcm.card 1
defaults.ctl.card 1

Replace 1 in the above example with the number you noted down above.

See also