cat /proc/asound/card*


 0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xf7080000 irq 324
 1 [Generic        ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0xf7800000 irq 326
 2 [SoundBar       ]: USB-Audio - Dell AC511 USB SoundBar
                      Dell Dell AC511 USB SoundBar at usb-0000:2a:00.3-2, full speed
 3 [StudioTM       ]: USB-Audio - Microsoft® LifeCam Studio(TM)
                      Microsoft Microsoft® LifeCam Studio(TM) at usb-0000:21:00.0-2.1, high speed
 4 [LX3000         ]: USB-Audio - Microsoft LifeChat LX-3000
                      C-Media Electronics Inc. Microsoft LifeChat LX-3000 at usb-0000:2a:00.3-3, full