To check alsa and pulseaudio open your terminal and type
press enter
press F6 key and leave as default, or use up down arrow keys to select the sound card.
After selecting the soundcard check here for mute and move through the channels using left and right arrow keys , there is more than one full screen of the channels, so keep checking across right, adjust the volume levels for each of the channels of your soundcard how you like it to sound, so it is nice.
To exit F6 selections or mixer use Esc key.
Code:
alsamixer
press enter
press F6 key and leave as default, or use up down arrow keys to select the sound card.
After selecting the soundcard check here for mute and move through the channels using left and right arrow keys , there is more than one full screen of the channels, so keep checking across right, adjust the volume levels for each of the channels of your soundcard how you like it to sound, so it is nice.
To exit F6 selections or mixer use Esc key.