I have made a tutorial on setting up ALSA. It is much more simple than the one in the Arch Linux wiki. Hope you like it!

When you first install Arch Linux and your preferred desktop environment or window manager, the sound will most likely not be working. The procedure to set it up is very simple. If you want to use OSS, an alternative sound system, see the OSS section at the bottom.

Installation

Simply run pacman -S alsa-lib alsa-utils After you have done this you will need to configure ALSA.