Install alsa-source by entering the following commands in the terminal:
sudo apt update sudo apt install alsa-source
ALSA driver sources
This package contains the source code for the ALSA drivers. The source code can be compiled into an alsa-modules package using the m-a utility (available in the module-assistant package). Please note that the kernel headers must be installed to compile these modules. Please read the README.Debian file for more information about loading and building modules. . ALSA is the Advanced Linux Sound Architecture.