any reason using pulseaudio ?

only android know which capture device and controls out of 400+ contols

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 0: MultiMedia1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 1: MultiMedia2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 2: CS-Voice (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 3: VoIP (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 5: SLIMBUS_0 Hostless 
(*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 6: INT_FM Hostless (*) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 8: AFE-PROXY TX 
msm-stub-tx-8 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 9: COMPR (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 10: AUXPCM Hostless 
(*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 12: Voice Stub (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 13: VoLTE (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 14: MultiMedia5 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 16: (Slimbus Capture) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 18: (Internal BT-SCO 
Capture) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 20: (Internal FM 
Capture) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 23: (AFE Capture) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 25: (AUX PCM Capture) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 26: (Stub Playback) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 27: (Stub Capture) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 29: (Slimbus1 Capture) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 30: SLIMBUS_2 Hostless 
Capture tabla_tx2-30 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 33: (Slimbus4 Capture) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 34: (Stub1 Capture) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: apq8064tablasnd [apq8064-tabla-snd-card], device 36: (Slimbus3 Capture) 
[]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

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https://bugs.launchpad.net/bugs/1332810

Title:
  Audio quality microphone terrible on LG Nexus 4

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