[solved] - laptop mic not working

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[solved] - laptop mic not working

Postby PsySc0rpi0n » 2020-01-16 20:57

Hi.

New problem.
My laptop mic it's not recording or capturing any sound.

Code: Select all
$ cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7c10000 irq 33


Code: Select all
$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC892 Alt Analog [ALC892 Alt Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


Then I try to record some sound by:
Code: Select all
$ arecord -d 10 -v testSound.wav
Recording WAVE 'testSound.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
ALSA <-> PulseAudio PCM I/O Plugin
Its setup is:
  stream       : CAPTURE
  access       : RW_INTERLEAVED
  format       : U8
  subformat    : STD
  channels     : 1
  rate         : 8000
  exact rate   : 8000 (8000/1)
  msbits       : 8
  buffer_size  : 4000
  period_size  : 1000
  period_time  : 125000
  tstamp_mode  : NONE
  tstamp_type  : GETTIMEOFDAY
  period_step  : 1
  avail_min    : 1000
  period_event : 0
  start_threshold  : 1
  stop_threshold   : 4000
  silence_threshold: 0
  silence_size : 0
  boundary     : 9007199254740992000


But I get nothing when I try to play the file:
Code: Select all
$ aplay testSound.wav
Playing WAVE 'testSound.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono


By the GUI, I can see this:
Image

What would be the problem?
Last edited by PsySc0rpi0n on 2020-01-20 19:52, edited 1 time in total.
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Re: laptop mic not working

Postby stevepusser » 2020-01-17 03:52

Is it a USB or 3.5 mm jack type microphone? If #2, does your laptop have a dedicated mic jack, or is it a dual purpose one like a cell phone has?
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Re: laptop mic not working

Postby PsySc0rpi0n » 2020-01-17 20:48

stevepusser wrote:Is it a USB or 3.5 mm jack type microphone? If #2, does your laptop have a dedicated mic jack, or is it a dual purpose one like a cell phone has?


It's just the laptop mic. Anyways, I fixed it.
This is a bit confusing to me in terms of available devices shown in the GUI panels, audio systems such as Alsa and Pulse Audio and then there are an whole set of devices (I don't even know if those are devices or not) like Analog Stereo Input, Analog Stereo Output, Analog Stereo Duplex, HDMI devices, 5.1 Surround sound devices, etc, etc etc.

Too many things that confuses me a lot every time I have any trouble with sound.

Anyways, the problem is that I should have Analog Stereo Duplex and I din't have it selected.
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