Sound drivers are not included in the dCore kernels but can be imported through the dCore extension alsa-modules-<kernel>-tinycore. Simply run the uname -r
command in a terminal to determine the kernel being used, then run the sce-import
command to install the appropriate alsa-modules extension, which should be loaded at boot. The dCore sound README page about ALSA provides a complete walkthrough.
alsamixer
in a terminal and ensure the volume bars are turned up and no applicable channels are muted (designated with 'MM' below volume slider). A muted 'PCM' channel may also disable sound. Enlarge the alsamixer screenshot to the right for several examples of muted sound channels. Also note the F6 key is used to switch audio devices if more than one device is installed.