Card sysdefault:0 'Audio'/'Generic iStore Audio at usb-20980000.usb-1.3, full speed' Mixer name : 'USB Mixer' Components : 'USB001f:0b21' Controls : 6 Simple ctrls : 2 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 11520 Mono: Playback 6400 [56%] [-20.00dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 8191 Mono: Capture 8191 [100%] [31.99dB] [on] Card sysdefault:1 'vc4hdmi'/'vc4-hdmi' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0