How about "arecord -v -f cd -Dhw:0,0,2 test.wav" ?
Simple mixer control 'Digital Mic',0
Capabilities: cvolume cswitch penum
Capture channels: Front Left - Front Right
Limits: Capture 0 - 12
Front Left: Capture 11 [92%] [16.50dB] [on]
Front Right: Capture 11 [92%] [16.50dB] [on]
Simple mixer control 'Digital Mic Boost',0
Capabilities: cvolume penum
Capture channels: Front Left - Front Right
Limits: Capture 0 - 3
Front Left: Capture 3 [100%] [36.00dB]
Front Right: Capture 3 [100%] [36.00dB]
Node 0x1e [Pin Complex] wcaps 0x40040b: Stereo Amp-In
Control: name="Digital Mic Boost Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x03 0x03]
Pincap 0x00000020: IN
Pin Default 0x90a601f0: [Fixed] Mic at Int N/A
Conn = Digital, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Power states: D0 D1 D2 D3
Power: setting=D0, actual=D0
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https://bugs.launchpad.net/bugs/631121
Title:
Internal mic doesn't work in my laptop
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