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alsaとpulseaudio専用ノイズ

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alsaとpulseaudio専用ノイズ

数日間ヘッドフォンを設定しようとしました。何かをパスしたりプレイしたりaplayするたびに、speaker-test非常に大きな白いノイズが聞こえます。 MS Windowsで動作するので、ハードウェアの問題ではないことを知っています。

これは私のaplay -L結果です。

null
    Discard all samples (playback) or generate zero samples (capture)
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pulse
    PulseAudio Sound Server
speex
    Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
    Plugin for channel upmix (4,6,8)
vdownmix
    Plugin for channel downmix (stereo) with a simple spacialization
default:CARD=PCH
    HDA Intel PCH, CA0132 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, CA0132 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    Front output / input
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
    HDA Intel PCH, CA0132 Digital
    IEC958 (S/PDIF) Digital Audio Output
usbstream:CARD=PCH
    HDA Intel PCH
    USB Stream Output
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 2
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 3
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=4
    HDA NVidia, HDMI 4
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=5
    HDA NVidia, HDMI 5
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=6
    HDA NVidia, HDMI 6
    HDMI Audio Output
usbstream:CARD=NVidia
    HDA NVidia
    USB Stream Output

aplay -l出力：

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CA0132 Analog [CA0132 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: CA0132 Digital [CA0132 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 11: HDMI 5 [HDMI 5]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 12: HDMI 6 [HDMI 6]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

私のもの/etc/modprobe.d/alsa-base.conf： options snd-hda-intel model=auto

amixer info:

Card default 'PCH'/'HDA Intel PCH at 0xed920000 irq 164'
  Mixer name    : 'Creative CA0132'
  Components    : 'HDA:11020011,1458a046,00100918'
  Controls      : 45
  Simple ctrls  : 25

amixer contents:

numid=29,iface=CARD,name='Front Headphone Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=30,iface=CARD,name='Front Headphone Jack',index=1
  ; type=BOOLEAN,access=r-------,values=1
  : values=on
numid=27,iface=CARD,name='Mic Phantom Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=on
numid=28,iface=CARD,name='SPDIF Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=31,iface=CARD,name='SPDIF Phantom Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=on
numid=2,iface=MIXER,name='Master Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=on,on
numid=1,iface=MIXER,name='Master Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=99,step=0
  : values=99,99
  | dBscale-min=-90.00dB,step=1.00dB,mute=0
numid=45,iface=MIXER,name='PCM Playback Volume'
  ; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
  : values=255,255
  | dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=14,iface=MIXER,name='Surround Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=22,iface=MIXER,name='Mic SVM Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=9,iface=MIXER,name='Mic1-Boost (30dB) Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=4,iface=MIXER,name='Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=3,iface=MIXER,name='Capture Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=99,step=0
  : values=99,99
  | dBscale-min=-90.00dB,step=1.00dB,mute=0
numid=36,iface=MIXER,name='IEC958 Default PCM Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=32,iface=MIXER,name='IEC958 Playback Con Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=33,iface=MIXER,name='IEC958 Playback Pro Mask'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=34,iface=MIXER,name='IEC958 Playback Default'
  ; type=IEC958,access=rw------,values=1
  : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=35,iface=MIXER,name='IEC958 Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
numid=38,iface=MIXER,name='IEC958 Capture Default'
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=37,iface=MIXER,name='IEC958 Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=13,iface=MIXER,name='AMic1/DMic Auto Detect Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=11,iface=MIXER,name='AMic1/DMic Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=6,iface=MIXER,name='Analog-Mic2 Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=5,iface=MIXER,name='Analog-Mic2 Capture Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=99,step=0
  : values=90,90
  | dBscale-min=-90.00dB,step=1.00dB,mute=0
numid=25,iface=MIXER,name='CrystalVoice Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=15,iface=MIXER,name='Crystalizer Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=16,iface=MIXER,name='Dialog Plus Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=20,iface=MIXER,name='Echo Cancellation Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=19,iface=MIXER,name='Equalizer Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=12,iface=MIXER,name='HP/Speaker Auto Detect Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=10,iface=MIXER,name='HP/Speaker Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=23,iface=MIXER,name='Noise Reduction Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=24,iface=MIXER,name='PlayEnhancement Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=17,iface=MIXER,name='Smart Volume Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=21,iface=MIXER,name='Voice Focus Capture Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=26,iface=MIXER,name='VoiceFX Capture Switch'
  ; type=ENUMERATED,access=rw------,values=1,items=14
  ; Item #0 'Neutral'
  ; Item #1 'Female2Male'
  ; Item #2 'Male2Female'
  ; Item #3 'ScrappyKid'
  ; Item #4 'Elderly'
  ; Item #5 'Orc'
  ; Item #6 'Elf'
  ; Item #7 'Dwarf'
  ; Item #8 'AlienBrute'
  ; Item #9 'Robot'
  ; Item #10 'Marine'
  ; Item #11 'Emo'
  ; Item #12 'DeepVoice'
  ; Item #13 'Munchkin'
  : values=0
numid=8,iface=MIXER,name='What U Hear Capture Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=7,iface=MIXER,name='What U Hear Capture Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=99,step=0
  : values=90,90
  | dBscale-min=-90.00dB,step=1.00dB,mute=0
numid=18,iface=MIXER,name='X-Bass Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
numid=40,iface=PCM,name='Capture Channel Map'
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR
numid=39,iface=PCM,name='Playback Channel Map'
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR
numid=44,iface=PCM,name='Capture Channel Map',device=1
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR
numid=43,iface=PCM,name='Playback Channel Map',device=1
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR
numid=41,iface=PCM,name='Capture Channel Map',device=2
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR
numid=42,iface=PCM,name='Capture Channel Map',device=4
  ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0
  : values=0,0
  | container
    | chmap-fixed=FL,FR

ls -la /dev/snd:

total 0
drwxr-xr-x   3 root root      440 Jul 17 23:01 .
drwxr-xr-x  21 root root     4160 Jul 17 23:01 ..
drwxr-xr-x   2 root root       80 Jul 17 23:01 by-path
crw-rw----+  1 root audio 116, 18 Jul 17 23:01 controlC0
crw-rw----+  1 root audio 116, 10 Jul 17 23:01 controlC1
crw-rw----+  1 root audio 116, 17 Jul 17 23:01 hwC0D0
crw-rw----+  1 root audio 116,  9 Jul 17 23:01 hwC1D0
crw-rw----+  1 root audio 116, 12 Jul 17 23:11 pcmC0D0c
crw-rw----+  1 root audio 116, 11 Jul 17 23:34 pcmC0D0p
crw-rw----+  1 root audio 116, 16 Jul 17 23:11 pcmC0D1c
crw-rw----+  1 root audio 116, 15 Jul 17 23:11 pcmC0D1p
crw-rw----+  1 root audio 116, 13 Jul 17 23:01 pcmC0D2c
crw-rw----+  1 root audio 116, 14 Jul 17 23:01 pcmC0D4c
crw-rw----+  1 root audio 116,  6 Jul 17 23:11 pcmC1D10p
crw-rw----+  1 root audio 116,  7 Jul 17 23:11 pcmC1D11p
crw-rw----+  1 root audio 116,  8 Jul 17 23:11 pcmC1D12p
crw-rw----+  1 root audio 116,  2 Jul 17 23:11 pcmC1D3p
crw-rw----+  1 root audio 116,  3 Jul 17 23:11 pcmC1D7p
crw-rw----+  1 root audio 116,  4 Jul 17 23:11 pcmC1D8p
crw-rw----+  1 root audio 116,  5 Jul 17 23:11 pcmC1D9p
crw-rw----+  1 root audio 116,  1 Jul 17 23:01 seq
crw-rw----+  1 root audio 116, 33 Jul 17 23:01 timer

pactl info:

Server String: /run/user/1000/pulse/native
Library Protocol Version: 34
Server Protocol Version: 34
Is Local: yes
Client Index: 5
Tile Size: 65472
User Name: REDACTED
Host Name: REDACTED
Server Name: pulseaudio
Server Version: 14.2
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_00_1f.3.analog-stereo
Default Source: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
Cookie: cf41:a508

私のAlsaミキサー： アルサミキサー

/proc/asound/card0/codec#0:

Codec: Creative CA0132
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x11020011
Subsystem Id: 0x1458a046
Revision Id: 0x100918
No Modem Function Group found
Default PCM:
    rates [0x0]:
    bits [0x0]:
    formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
  Power states:  D0 D3 D3cold S3D3cold CLKSTOP EPSS
  Power: setting=D0, actual=D0
GPIO: io=0, o=0, i=0, unsolicited=1, wake=1
Node 0x02 [Audio Output] wcaps 0x49d: Stereo Amp-Out
  Device: name="CA0132 Analog", type="Audio", device=0
  Amp-Out caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-Out vals:  [0x63 0x63]
  Converter: stream=0, channel=0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x03 [Audio Output] wcaps 0x49d: Stereo Amp-Out
  Amp-Out caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-Out vals:  [0x5a 0x5a]
  Converter: stream=0, channel=0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x04 [Audio Output] wcaps 0x49d: Stereo Amp-Out
  Amp-Out caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-Out vals:  [0x5a 0x5a]
  Converter: stream=0, channel=0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x05 [Audio Output] wcaps 0x691: Stereo Digital
  Control: name="IEC958 Playback Con Mask", index=0, device=0
  Control: name="IEC958 Playback Pro Mask", index=0, device=0
  Control: name="IEC958 Playback Default", index=0, device=0
  Control: name="IEC958 Playback Switch", index=0, device=0
  Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
  Device: name="CA0132 Digital", type="SPDIF", device=1
  Converter: stream=0, channel=0
  Digital:
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xa]: 16 24
    formats [0x5]: PCM AC3
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x06 [Audio Output] wcaps 0x491: Stereo
  Converter: stream=0, channel=0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x07 [Audio Input] wcaps 0x10059b: Stereo Amp-In
  Device: name="CA0132 Analog", type="Audio", device=0
  Amp-In caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-In vals:  [0xe3 0xe3]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x1e4]: 16000 44100 48000 88200 96000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x12
Node 0x08 [Audio Input] wcaps 0x10059b: Stereo Amp-In
  Control: name="Analog-Mic2 Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Analog-Mic2 Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Device: name="CA0132 Analog Mic-In2", type="Audio", device=2
  Amp-In caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-In vals:  [0xda 0xda]
  Converter: stream=0, channel=0
  SDI-Select: 0
  PCM:
    rates [0x1e4]: 16000 44100 48000 88200 96000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x11
Node 0x09 [Audio Input] wcaps 0x100791: Stereo Digital
  Control: name="IEC958 Capture Switch", index=0, device=0
  Control: name="IEC958 Capture Default", index=0, device=0
  Device: name="CA0132 Digital", type="SPDIF", device=1
  Converter: stream=0, channel=0
  SDI-Select: 0
  Digital:
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x1f0]: 32000 44100 48000 88200 96000
    bits [0xa]: 16 24
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x0e
Node 0x0a [Audio Input] wcaps 0x10079b: Stereo Digital Amp-In
  Control: name="What U Hear Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="What U Hear Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Device: name="CA0132 What U Hear", type="Audio", device=4
  Amp-In caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-In vals:  [0xda 0xda]
  Converter: stream=0, channel=0
  SDI-Select: 0
  Digital:
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x1ec]: 16000 22050 44100 48000 88200 96000
    bits [0x1b]: 8 16 24 32
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x13
Node 0x0b [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x00010010: OUT EAPD
  EAPD 0x2: EAPD
  Pin Default 0x01014010: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x02
Node 0x0c [Pin Complex] wcaps 0x400701: Stereo Digital
  Pincap 0x00000010: OUT
  Pin Default 0x014580f0: [Jack] SPDIF Out at Ext Rear
    Conn = Optical, Color = Purple
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x05
Node 0x0d [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x00000014: OUT Detect
  Pin Default 0x014570f0: [Jack] SPDIF Out at Ext Rear
    Conn = Optical, Color = Yellow
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=04, enabled=1
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x06
Node 0x0e [Pin Complex] wcaps 0x400681: Stereo Digital
  Pincap 0x00000020: IN
  Pin Default 0x01c530f0: [Jack] SPDIF In at Ext Rear
    Conn = Optical, Color = Blue
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x0f [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x0000001c: OUT HP Detect
  Pin Default 0x0221401f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0x00:
  Unsolicited: tag=05, enabled=1
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x02
Node 0x10 [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x0000001c: OUT HP Detect
  Pin Default 0x02216011: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Orange
    DefAssociation = 0x1, Sequence = 0x1
  Pin-ctls: 0x00:
  Unsolicited: tag=01, enabled=1
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x03
Node 0x11 [Pin Complex] wcaps 0x40058b: Stereo Amp-In
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00]
  Pincap 0x00003734: IN OUT Detect
    Vref caps: HIZ 50 GRD 80 100
  Pin Default 0x02012014: [Jack] Line Out at Ext Front
    Conn = 1/8, Color = Grey
    DefAssociation = 0x1, Sequence = 0x4
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x04
Node 0x12 [Pin Complex] wcaps 0x40048b: Stereo Amp-In
  Control: name="Mic1-Boost (30dB) Capture Switch", index=0, device=0
    ControlAmp: chs=1, dir=In, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00]
  Pincap 0x00003724: IN Detect
    Vref caps: HIZ 50 GRD 80 100
  Pin Default 0x37a791f0: [Jack] Mic at Oth Mobile-In
    Conn = Analog, Color = Pink
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=02, enabled=1
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x13 [Pin Complex] wcaps 0x400681: Stereo Digital
  Pincap 0x00000020: IN
  Pin Default 0x908700f0: [Fixed] Line In at Int N/A
    Conn = Analog, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x20: IN
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x14 [Beep Generator Widget] wcaps 0x70040c: Mono Amp-Out
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals:  [0x1c]
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x15 [Vendor Defined Widget] wcaps 0xf00600: Mono Digital
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x16 [Vendor Defined Widget] wcaps 0xf00680: Mono Digital
  Unsolicited: tag=03, enabled=1
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x17 [Audio Output] wcaps 0x49d: Stereo Amp-Out
  Amp-Out caps: ofs=0x5a, nsteps=0x63, stepsize=0x03, mute=1
  Amp-Out vals:  [0x5a 0x5a]
  Converter: stream=0, channel=0
  PCM:
    rates [0x5ec]: 16000 22050 44100 48000 88200 96000 192000
    bits [0x1f]: 8 16 20 24 32
    formats [0x1]: PCM
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x18 [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x00000010: OUT
  Pin Default 0x500000f0: [N/A] Line Out at Int N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 1
     0x17

前面ヘッドフォンジャックと背面ヘッドフォンジャックにヘッドフォンを接続してみましたが、どちらもサウンドを再生すると騒音が発生しました。アイドル状態に戻ると騒音が止まりました。

ベストアンサー1

部分的な答え：

標準のIntel HDAサウンドコントローラがあります。これにはCreative CA0132コーデックチップ（コーデック=エンコーダ/デコーダ）が接続されています。チップは少し珍しいように見え、ALSAにはすでに他のコーデックでは見られない多くの機能があります。

このチップのGoogle検索で見つかりました。これ、カーネルのコーデックドライバがまだ多く開発中のようです。

したがって、最初のステップは、ディストリビューションが許可する最新のカーネルをインストールすることです。たぶんこれが問題を解決したかもしれません。

それ以外の場合は、最新のカーネルソースが利用可能であることを確認してください。ここ、ソースからディストリビューションにカーネルをコンパイルしてインストールする方法を学びます。 （難しいことではありません。すべてのディストリビューションに使用できるチュートリアルがたくさんあります。）ここCA0132 コーデックドライバの変更のログ一覧です。

それでも役に立たない場合は、（必要に応じて）コーデック内で何が起こっているのかをデバッグし始めます。

HDAコーデックはDAC、ミキサーなどに対応するノードでグラフィックで構成されています。また、あまりにも増幅されて溺れることがあります。これは、実際の信号が出ているか、実際の信号が予想される位置に到達しないためです。

ここでの最初のステップは、ALSAでミキサー設定を使用することです。必要に応じてPulseaudioを無効にして除外します（Pulseaudioが予測不能な方法でALSAミキサー設定を引き継ぐため）。直接音を再生しますaplay。あなたの質問の情報によると、すでにこれを行っている可能性があり、Pulseaudioがインストールされていない可能性があります。

すべてのキャプチャミキサーはミュートされているように見えますが、ALSAには見えない一部のノードをループバックする場合に備えて、すべてのキャプチャおよび特殊機能ミキサーの音量も低くなりました。

次に、どの再生ミキサーがホワイトノイズの音量に影響し、どのミキサーがそうでないかを調べます。

運が良くて実際の信号が消えたら、おそらく何かを聞いたことがあるでしょう。そうでない場合は、コーデックの設定（または同様の設定）を見てください。ドライバに奇妙な/proc/asound/card0/codec#0ことが必要になる可能性があるため、ドライバのカーネルバグトラッカーにバグを送信するときです。

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