the capture volume has atten and gain (-16.5db to 30dB)
control.10 {
iface MIXER
name 'Capture Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -1650
dbmax 3000
dbvalue.0 -1650
dbvalue.1 -1650
}
}
the mic jack has boost volume control but your internal mic did not
Node 0x18 [Pin Complex] wcaps 0x40058f: Stereo Amp-In Amp-Out
Control: name="Mic Boost Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Mic Jack", index=0, device=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x00001734: IN OUT Detect
Vref caps: HIZ 50 GRD 80
Pin Default 0x03a19830: [Jack] Mic at Ext Left
Conn = 1/8, Color = Pink
DefAssociation = 0x3, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=02, enabled=1
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
Connection: 1
0x0e
dB range of mic jack is -16.5 to 60 dB
dB range of internal mic is -16.5 to 30 dB
0.342| 0.000) D: [pulseaudio] alsa-mixer.c: Available mixer paths (after
tidying):
( 0.342| 0.000) D: [pulseaudio] alsa-mixer.c: Path Set 0x8472b58,
direction=2
( 0.342| 0.000) D: [pulseaudio] alsa-mixer.c: Path analog-input-microphone
(Microphone), direction=2, priority=87, probed=yes, supported=yes,
has_mute=yes, has_volume=yes, has_dB=yes, min_volume=0, max_volume=3,
min_dB=-16,5, max_dB=60
( 0.342| 0.000) D: [pulseaudio] alsa-mixer.c: Element Mic Boost,
direction=2, switch=0, volume=1, volume_limit=-1, enumeration=0, required=0,
required_any=4, required_absent=0, mask=0x3600000000f66, n_channels=2,
override_map=yes
( 0.343| 0.000) D: [pulseaudio] alsa-mixer.c: Element Capture, direction=2,
switch=1, volume=1, volume_limit=-1, enumeration=0, required=0, required_any=0,
required_absent=0, mask=0x3600000000f66, n_channels=2, override_map=yes
( 0.343| 0.000) D: [pulseaudio] alsa-mixer.c: Jack Mic, alsa_name='Mic
Jack', detection possible
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https://bugs.launchpad.net/bugs/1245340
Title:
Internal michrophone works only in System testing
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