Mic just outputs white noise!

deline · 2026-07-12 20:49:31

hello, i fixed the audio but my mic was not detected at first, i fixed that but now i have another problem, no one hears me. instead they hear noise. the output of aplay -l is:

 **** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC256 Analog [ALC256 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  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

Last edited by deline (2026-07-17 01:31:37)

Erwin Iosef · 2026-07-13 17:27:38

What exact device are we talking about?
Check out: https://wiki.archlinux.org/title/PipeWi … _distorted

seth · 2026-07-13 19:02:37

Also probably

amixer
amixer -Dhw:0

Static input might come from an (unused) external mic or line-in?

deline · 2026-07-15 23:40:37

seth wrote:

Also probably
amixer
amixer -Dhw:0
Static input might come from an (unused) external mic or line-in?

amixer :

  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 23821 [36%] [on]
  Front Right: Playback 23821 [36%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 65536
  Front Left: Capture 65536 [100%] [on]
  Front Right: Capture 65536 [100%] [on]

amixer -Dhw:0 :

Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 52 [60%] [-26.25dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 0 [0%] [-65.25dB] [off]
  Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB] [on]
  Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958',1
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',2
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',3
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 63 [100%] [30.00dB] [on]
  Front Right: Capture 63 [100%] [30.00dB] [on]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'
Simple mixer control 'Internal Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'Rear Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

i think it all comes from internal mic, since this is the one i use, im very sorry i really dont know how to read these outputs right

Last edited by deline (2026-07-16 11:08:13)

seth · 2026-07-16 05:35:16

Please use [code][/code] tags. Edit your post in this regard.

Simple mixer control 'Mic Boost',0
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Capture',0
  Front Left: Capture 63 [100%] [30.00dB] [on]
  Front Right: Capture 63 [100%] [30.00dB] [on]
Simple mixer control 'Auto-Mute Mode',0
  Item0: 'Disabled'
Simple mixer control 'Internal Mic Boost',0
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'Rear Mic Boost',0
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

There're three "Mic Boost"s, another Capture device and some auto-mute switch.

alsamixer -Dhw:0 # you'll have to press F4 to switch to input devices

Try to play with those (just ramp all up while yelling at a wall until you can hear yourself yelling over the heaphones, then reduce the other ones until the noise is gone)

deline · 2026-07-16 11:15:44

cant hear myself, mic, internal mic, and rear mic dont capture any sound, rear mic and mic are completely silent. and internal mic outputs only static

dimich · 2026-07-16 12:10:48

deline wrote:

i fixed the audio

If you mean this issue, you didn't fix it. According to the description, there was some malfunction, and symptoms disappeared after reboot.

deline wrote:

but my mic was not detected at first, i fixed that

How?

deline wrote:

but now i have another problem, no one hears me. instead they hear noise.

Do you hear that noise on your system? Can you record it?
The noise may be injected as a "comfort noise" by your communication software, so other people hear it while your audio source is completely quiet.

Last edited by dimich (2026-07-16 12:23:24)

deline · 2026-07-16 13:31:02

How?

i made a conf file using nano in etc/modprobe.d/alsa.conf
and put

options snd-intel-dspcfg dsp_driver=1
options snd_hda_intel model=laptop-dmic

in there

Do you hear that noise on your system? Can you record it?

yes i can record it

seth · 2026-07-16 15:30:36

… internal mic … dont capture any sound … and internal mic outputs only static

?
Did you try to alter the left/right channels of that microphone separately?
Also try to produce some sound very close to the microphone.

dimich · 2026-07-16 16:02:06

deline wrote:

options snd_hda_intel model=laptop-dmic

Perhaps you specified wrong board model. What is your h/w?
Full list of supported boards is here: https://github.com/archlinux/linux/blob … models.rst

deline · 2026-07-16 17:46:00

seth wrote:

… internal mic … dont capture any sound … and internal mic outputs only static
?
Did you try to alter the left/right channels of that microphone separately?
Also try to produce some sound very close to the microphone.

what i meant is that it doesnt react to me talking or any sound at all, it doesnt capture anything and only outputs static

tried, doesnt work

deline · 2026-07-16 18:01:16

dimich wrote:

deline wrote:
options snd_hda_intel model=laptop-dmic
Perhaps you specified wrong board model. What is your h/w?
Full list of supported boards is here: https://github.com/archlinux/linux/blob … models.rst

i have an MSI cyborg 15 laptop, if thats what youre asking..
and the sound card is HDA-Intel - HDA Intel PCH or ALC256 Analog i think

dimich · 2026-07-16 18:35:05

deline wrote:

i have an MSI cyborg 15 laptop

Different revisions may have different hardware. What is output of

# dmidecode -s baseboard-product-name

?

Do you have sof-firmware package installed?
Try to install it if not. Then reboot and show

$ dmesg | grep snd_hda_intel

and test the mic.

Try to comment out that "snd_hda_intel model=laptop-dmic", reboot, check dmesg and test mic again.
Edit: remove "options snd-intel-dspcfg dsp_driver=1" as well.

Last edited by dimich (2026-07-16 18:38:10)

deline · 2026-07-16 19:46:03

 sudo dmidecode -s baseboard-product-name

outputs

 MS-15K1

and

 sudo dmesg | grep snd_hda_intel

outputs

[    3.669032] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[    3.669246] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [i915])
[    3.669440] snd_hda_intel 0000:01:00.1: enabling device (0000 -> 0002)
[    3.669570] snd_hda_intel 0000:01:00.1: Disabling MSI
[    3.669578] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client

commented out, removed, rear mic disappeared but the static is still there, althought i cant make the static louder now, but in general microphone still doesnt seem to work

seth · 2026-07-16 20:17:48

ALC256 Analog i think

So probably not a digital microphone?

Did you try "headset-mic" or "alc256-asus-mic"?

dimich · 2026-07-16 20:52:16

deline wrote:

commented out, removed, rear mic disappeared but the static is still there, althought i cant make the static louder now, but in general microphone still doesnt seem to work

Dual boot? 3rd link in seth's signature, mandatory.

Is / was sof-firmware installed?
Doesn't Fn+F6 enable mic?

deline · 2026-07-16 21:14:39

i dont have dual boot, yes sof-firmware is installed, fn+f6 doesnt do anything cause microphone is already on but still only outputs static, i'll try to put

 alc256-asus-mic

into the conf file right now

deline · 2026-07-16 21:20:56

still nothing, unfortunately

dimich · 2026-07-16 22:01:07

How do you check whether mic works? Actually there are two paths for feedback:
Hardware, when microphone is wired to output directly in circuit. Sound servers (pipewire/pulseaudio) usually disable it. However, with digital mic this path may be not available.
Software, when sound server mixes mic stream into output stream. Moreover, sound server usually mix mic signal to output only while capturing. So absense of feedback to output does not always mean that mic doesn't work.

BTW,

$ pacmd list-sources

?

There may be misconfguration on different levels: kernel driver, alsa, sound server.

Run

alsamixer -Dhw:0 -V capture

and try to increase 'Mic Boost' while capturing audio.

Perhaps easiest way to play around sound server settings is to install and run pavucontrol. Check "Profile:" in "Configuration" tab first. Then go to "Input Devices", select internal mic, unmute it and increase gain.

seth · 2026-07-16 22:37:22

seth also wrote:

Did you try "headset-mic"

Ideally

arecord -Dhw:0 -f cd > some.wav

would undercut the sound servers.

deline · 2026-07-16 22:58:29

i use OBS to check

 bash: pacmd: command not found

increasing/decreasing mic boost or internal mic boost does nothing, in pavucontrol i found "GA107 High Definition Audio Controller" but it is off, changing to "Pro Audio" makes all sound disappear and adds more output devices :
GA107 High Definition Audio Controller Pro, GA107 High Definition Audio Controller Pro 7, GA107 High Definition Audio Controller Pro 8, GA107 High Definition Audio Controller Pro 9.

changing Built-In-Audio from "Analog-Stereo-Duplex" to "Pro Audio" changes the output from "Built-In Analog Stereo" to "Built-In Audio Pro 3" but i cant hear any sound when changing to that, even though i see that pavucontrol and OBS hear it

deline · 2026-07-16 23:11:04

seth wrote:

seth also wrote:
Did you try "headset-mic"
Ideally
arecord -Dhw:0 -f cd > some.wav
would undercut the sound servers.

arecord -Dhw:0 -f cd > some.wav

i recorded and i only heard static after listening, but, in the very start there is a relatively loud snap sound
edit: i tried headset-mic just now, still nothing

Last edited by deline (2026-07-16 23:13:57)

deline · 2026-07-17 01:27:47

changing to headset-mic made "audio pro" not mute everything i think, but microphone is still in the same condition

Last edited by deline (2026-07-17 01:28:04)

seth · 2026-07-17 06:13:31

Do you have a headset that you can plug into the phone jack?
Does that behave correctly?
If you're booting some live distro, does the sound and microphone there work OOTB?

deline · 2026-07-17 08:46:14

no i sadly dont have a headset, and i dont boot live distro,
i will try to buy an external microphone and connect it , i hope it will work

Arch Linux

#1 2026-07-12 20:49:31

Mic just outputs white noise!

#2 2026-07-13 17:27:38

Re: Mic just outputs white noise!

#3 2026-07-13 19:02:37

Re: Mic just outputs white noise!

#4 2026-07-15 23:40:37

Re: Mic just outputs white noise!

#5 2026-07-16 05:35:16

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#6 2026-07-16 11:15:44

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#7 2026-07-16 12:10:48

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#8 2026-07-16 13:31:02

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#9 2026-07-16 15:30:36

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#10 2026-07-16 16:02:06

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#11 2026-07-16 17:46:00

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#12 2026-07-16 18:01:16

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#13 2026-07-16 18:35:05

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#14 2026-07-16 19:46:03

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#15 2026-07-16 20:17:48

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#16 2026-07-16 20:52:16

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#17 2026-07-16 21:14:39

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#18 2026-07-16 21:20:56

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#19 2026-07-16 22:01:07

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#22 2026-07-16 23:11:04

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#23 2026-07-17 01:27:47

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#24 2026-07-17 06:13:31

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#25 2026-07-17 08:46:14

Re: Mic just outputs white noise!

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