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#1 2020-04-23 04:57:08

Tendel10
Member
Registered: 2020-04-23
Posts: 4

Pulseaudio and/or Alsa issues where mic only records static audio

Overview:

I am having a problem with Pulseaudio and/or Alsa where my mic only outputs static audio, the volume of this audio can be changed but the mic does not record any meaningful audio. I have read through the wiki and followed the all the steps in "Static noise in microphone recording" section, to no success.

What I tried:

When I record at the highest sampling rate of the mic (96000) with the command `arecord -f dat -r 96000 -D hw:0,0 -d 5 highSample.wav` when I play it back with aplay, the static sound clearer and that is it. Also I cannot change the default sample rate in the /etc/pulse/daemon.conf, as once I do and restart pulseaudio with `pulseaudio -k;pulseaudio --start` and run the command `arecord -f cd -d 10 defaultSample.wav`it still records at the default 44100.

I also tried checking for 2 channels, when I run `pacmd list-sources | grep 'name:.*input'` I get the output `name: <alsa_input.pci-0000_00_1f.3.analog-stereo>` and when I add the following lines:

load-module module-remap-source source_name=record_mono master=alsa_input.pci-0000_00_1f.3.analog-stereo master_channel_map=front-left channel_map=mono
set-default-source record_mono

to the bottom of the /etc/pulse/default.pa file and again reload pulseaudio, I get the same output.

I even tried setting `avoid-resampling = yes` to /etc/pulse/daemon.conf and reloading, and again I got the same output.

What I am running:

I am currently running KDE Plasma, with pulseaudio version 13.0 and alsactl version 1.2.2 if that helps anything.

Last edited by Tendel10 (2020-04-23 06:50:02)

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#2 2020-04-23 05:05:50

Tendel10
Member
Registered: 2020-04-23
Posts: 4

Re: Pulseaudio and/or Alsa issues where mic only records static audio

Too add on to that, turning everything up and enabling all options in alsa still does not help!

Last edited by Tendel10 (2020-04-23 06:49:14)

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#3 2020-04-23 06:23:14

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 25,230

Re: Pulseaudio and/or Alsa issues where mic only records static audio

During recording post (default device so that pulse get's actively used) post the outputs of

aplay -l
amixer -c0
dmesg | grep snd
pacmd list-cards
pacmd list-sources
pacmd list-source-outputs

in [ code ] [ /code ] tags without the spaces please.

Last edited by V1del (2020-04-23 06:24:13)

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#4 2020-04-23 06:54:09

Tendel10
Member
Registered: 2020-04-23
Posts: 4

Re: Pulseaudio and/or Alsa issues where mic only records static audio

Sure, hope this helps.

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic 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 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
amixer -c0
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 74
  Mono: Playback 65 [88%] [-9.00dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 74
  Mono:
  Front Left: Playback 0 [0%] [-74.00dB] [off]
  Front Right: Playback 0 [0%] [-74.00dB] [off]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 74
  Mono:
  Front Left: Playback 74 [100%] [0.00dB] [on]
  Front Right: Playback 74 [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 254 [100%] [-0.20dB]
  Front Right: Playback 254 [100%] [-0.20dB]
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: 3 [100%] [36.00dB]
  Front Right: 3 [100%] [36.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
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 'IEC958',4
  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 - 80
  Front Left: Capture 80 [100%] [6.00dB] [on]
  Front Right: Capture 80 [100%] [6.00dB] [on]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 120 [100%] [30.00dB]
  Front Right: Capture 120 [100%] [30.00dB]
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%] [36.00dB]
  Front Right: 3 [100%] [36.00dB]
dmesg | grep snd
[   10.744993] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[   10.769838] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[   10.863032] snd_hda_codec_generic hdaudioC0D0: autoconfig for Generic: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
[   10.863035] snd_hda_codec_generic hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   10.863036] snd_hda_codec_generic hdaudioC0D0:    hp_outs=1 (0x16/0x0/0x0/0x0/0x0)
[   10.863037] snd_hda_codec_generic hdaudioC0D0:    mono: mono_out=0x0
[   10.863038] snd_hda_codec_generic hdaudioC0D0:    inputs:
[   10.863040] snd_hda_codec_generic hdaudioC0D0:      Internal Mic=0x1a
[   10.863041] snd_hda_codec_generic hdaudioC0D0:      Mic=0x19
pacmd list-cards
1 card(s) available.
    index: 0
        name: <alsa_card.pci-0000_00_1f.3>
        driver: <module-alsa-card.c>
        owner module: 6
        properties:
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xef128000 irq 129"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "9d71"
                device.product.name = "Sunrise Point-LP HD Audio"
                device.form_factor = "internal"
                device.string = "0"
                device.description = "Built-in Audio"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
                output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
                output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
                output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
                output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: no)
                output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
                output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
                output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
                output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
                output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
                output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
                output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
                output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
                output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
                off: Off (priority 0, available: unknown)
        active profile: <output:analog-stereo+input:analog-stereo>
        sinks:
                alsa_output.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
        sources:
                alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#0: Monitor of Built-in Audio Analog Stereo
                alsa_input.pci-0000_00_1f.3.analog-stereo/#1: Built-in Audio Analog Stereo
        ports:
                analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-speakers"
                analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-headphones"
                hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
pacmd list-sources
2 source(s) available.
    index: 0
        name: <alsa_output.pci-0000_00_1f.3.analog-stereo.monitor>
        driver: <module-alsa-card.c>
        flags: DECIBEL_VOLUME LATENCY 
        state: IDLE
        suspend cause: (none)
        priority: 1030
        volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max rewind: 17 KiB
        sample spec: s16le 2ch 48000Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 0
        fixed latency: 99.95 ms
        monitor_of: 0
        card: 0 <alsa_card.pci-0000_00_1f.3>
        module: 6
        properties:
                device.description = "Monitor of Built-in Audio Analog Stereo"
                device.class = "monitor"
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xef128000 irq 129"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "9d71"
                device.product.name = "Sunrise Point-LP HD Audio"
                device.form_factor = "internal"
                device.string = "0"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
  * index: 1
        name: <alsa_input.pci-0000_00_1f.3.analog-stereo>
        driver: <module-alsa-card.c>
        flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        state: SUSPENDED
        suspend cause: IDLE
        priority: 9039
        volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
                balance 0.00
        base volume: 13076 /  20% / -42.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max rewind: 0 KiB
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 0
        fixed latency: 99.95 ms
        card: 0 <alsa_card.pci-0000_00_1f.3>
        module: 6
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "Generic Analog"
                alsa.id = "Generic Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xef128000 irq 129"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "9d71"
                device.product.name = "Sunrise Point-LP HD Audio"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "17632"
                device.buffering.fragment_size = "4408"
                device.access_mode = "mmap"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Built-in Audio Analog Stereo"
                alsa.mixer_name = "Conexant Generic"
                alsa.components = "HDA:14f11f72,10431a40,00100000 HDA:8086280b,80860101,00100000"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
        active port: <analog-input-internal-mic>
pacmd list-source-outputs
0 source output(s) available.

Last edited by Tendel10 (2020-04-23 06:54:23)

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#5 2020-04-23 07:16:49

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 25,230

Re: Pulseaudio and/or Alsa issues where mic only records static audio

It's always a bit weird to see generically initialized codecs, you didn't set something up to this effect in modprobe.d/kernel parameters did you? What hardware is this? From the output two things that might be relevant, lower both mic boosts, having them on 3 is not usually what you want, and you aren't using pulse for recording in that output maybe try

parec --file-format=wav test.wav

to be sure.

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#6 2020-04-24 01:46:20

Tendel10
Member
Registered: 2020-04-23
Posts: 4

Re: Pulseaudio and/or Alsa issues where mic only records static audio

Ok so my mic that was broken for a little while just started working, for anyone looking back on this thread, I updated my packages, and am now running the 5.6.6 kernel. I had also installed intel-ucode but I dont know if that could have affected the mic.

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