Arch Linux

grimmy

Member

Registered: 2023-12-16

Posts: 1

Microphone Not Recognized

Hey guys,
I've been working at an internal mic issue for ages and I've finally tucked tail to come for help. Posting everything I know/understand so far, hoping something might stick out to you guys. Thank you ahead of time:

Machine: Lenovo Carbon x1 Tablet, Gen 3,  a fresh Arch on Gnome 45
Running Pipewire 

What does work: sound output, output to headphones, video
What does't work: onboard mic, video sound

Problem:

$ arecord --duration=5 --format=dat test-mic.wav
$ aplay test-mic.wav

...produces only white noise. Microphone is recognized in pavu as "undetected microphone"... and it shows that low-level white noise is being picked up. Otherwise, I see it nowhere.

I've gone through all of the advice in the Pipewire docu and Advanced Linux Sound docu in the archwiki and took as much advice as I could. I also noticed that the specific sound card I have seems to have issues across multiple laptop types and builds.
Others have encountered this issue with this exact hardware and haven't and haven't solved it. I heard it *can* work in ubuntu, but I kind of want to stay on arch for obvious reasons (8 years now and going strong lol).

This is my alsamixer output:
https://ibb.co/NWXq2Bb

That's the default. I have to press F6 to get to my actual sound card, which looks like this:
https://ibb.co/xzFK2MY
https://ibb.co/NmHJbDS

Wondering if it's possible that alsa isn't talking to my soundcard properly?

These are some of the settings:

arecord -l

> arecord -l               

                
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

arecord -L

> arecord -L
null
    Discard all samples (playback) or generate zero samples (capture)
lavrate
    Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pipewire
    PipeWire Sound Server
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
    Default ALSA Output (currently PipeWire Media Server)
sysdefault:CARD=PCH
    HDA Intel PCH, ALC295 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    Front output / input
usbstream:CARD=PCH
    HDA Intel PCH
    USB Stream Output

aplay -L

> aplay -L


null
    Discard all samples (playback) or generate zero samples (capture)
lavrate
    Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pipewire
    PipeWire Sound Server
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
    Default ALSA Output (currently PipeWire Media Server)
sysdefault:CARD=PCH
    HDA Intel PCH, ALC295 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    Front output / input
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC295 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=PCH,DEV=0
    HDA Intel PCH, HDMI 0
    HDMI Audio Output
hdmi:CARD=PCH,DEV=1
    HDA Intel PCH, HDMI 1
    HDMI Audio Output
hdmi:CARD=PCH,DEV=2
    HDA Intel PCH, HDMI 2
    HDMI Audio Output
usbstream:CARD=PCH
    HDA Intel PCH
    USB Stream Output