>>>pacmd list-sinks | grep -e 'name:' -e 'index'
   index: 0
	name: <alsa_output.pci-0000_01_00.1.hdmi-stereo>
    index: 2
	name: <alsa_output.pci-0000_00_14.2.iec958-stereo>
    index: 3
	name: <combined>
  * index: 12
	name: <alsa_output.usb-C-Media_Electronics_Inc._Bloody_Gaming_Audio_Device-00.iec958-stereo>
>>>cat /proc/asound/cards
 0 [SB             ]: HDA-Intel - HDA ATI SB
                      HDA ATI SB at 0xfbff4000 irq 16
 1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfe77c000 irq 19
 2 [U0x46d0x825    ]: USB-Audio - USB Device 0x46d:0x825
                      USB Device 0x46d:0x825 at usb-0000:00:12.2-4, high speed
 3 [Device         ]: USB-Audio - Bloody Gaming Audio Device
                      C-Media Electronics Inc. Bloody Gaming Audio Device at usb-0000:00:12.0-1, full
>>>aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 3: Device [Bloody Gaming Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0