aplay -l give me this
**** List of PLAYBACK Hardware Devices ****
card 0: CMI8738 [C-Media CMI8738], device 0: CMI8738-MC6 [C-Media PCI DAC/ADC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: CMI8738 [C-Media CMI8738], device 1: CMI8738-MC6 [C-Media PCI 2nd DAC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: CMI8738 [C-Media CMI8738], device 2: CMI8738-MC6 [C-Media PCI IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
command aplay -L
default:CARD=CMI8738
C-Media CMI8738, C-Media PCI DAC/ADC
Default Audio Device
front:CARD=CMI8738,DEV=0
C-Media CMI8738, C-Media PCI DAC/ADC
Front speakers
iec958:CARD=CMI8738,DEV=0
C-Media CMI8738, C-Media PCI DAC/ADC
IEC958 (S/PDIF) Digital Audio Output
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=CinemaTM
Microsoft® LifeCam Cinema(TM), USB Audio
Default Audio Device
front:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
Front speakers
surround40:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=CinemaTM,DEV=0
Microsoft® LifeCam Cinema(TM), USB Audio
IEC958 (S/PDIF) Digital Audio Output
default:CARD=NVidia
HDA NVidia
Default Audio Device
front:CARD=NVidia
HDA NVidia
Front speakers
surround40:CARD=NVidia
HDA NVidia
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia
HDA NVidia
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia
HDA NVidia
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia
HDA NVidia
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia
HDA NVidia
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia
HDA NVidia
IEC958 (S/PDIF) Digital Audio Output