Raspberry PI: Volume control

Set the volume of sound output jack or USB sound card on Raspberry PI with Raspbian distro. This action will be perfomed with amixer utility. First list all audio capable devices: $ amixer Sample output: Simple mixer control ‘Speaker’,0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left – Front Right Limits: Playback 0 – […]