linux audio

$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC898 Digital [ALC898 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC898 Analog [ALC898 Analog]
  Subdevices: 2/2
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1



$ cat /proc/asound/devices
  1:        : sequencer
  2: [ 0- 2]: digital audio capture
  3: [ 0- 1]: digital audio playback
  4: [ 0- 1]: digital audio capture
  5: [ 0- 0]: digital audio playback
  6: [ 0- 0]: digital audio capture
  7: [ 0- 0]: hardware dependent
  8: [ 0]   : control
  9: [ 1- 9]: digital audio playback
 10: [ 1- 8]: digital audio playback
 11: [ 1- 7]: digital audio playback
 12: [ 1- 3]: digital audio playback
 13: [ 1- 0]: hardware dependent
 14: [ 1]   : control
 33:        : timer


ms@ms:~$ arecord -L
default
    Playback/recording through the PulseAudio sound server
sysdefault:CARD=PCH
    HDA Intel PCH, ALC898 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    Front speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Digital
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    Direct sample mixing device
dmix:CARD=PCH,DEV=1
    HDA Intel PCH, ALC898 Digital
    Direct sample mixing device
dmix:CARD=PCH,DEV=2
    HDA Intel PCH, ALC898 Analog
    Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
    HDA Intel PCH, ALC898 Digital
    Direct sample snooping device
dsnoop:CARD=PCH,DEV=2
    HDA Intel PCH, ALC898 Analog
    Direct sample snooping device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC898 Digital
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=2
    HDA Intel PCH, ALC898 Analog
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC898 Analog
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC898 Digital
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=2
    HDA Intel PCH, ALC898 Analog
    Hardware device with all software conversions
ms@ms:~$