Arch Linux

luiz

Member

Registered: 2020-02-24

Posts: 9

[SOLVED] ALSA microphone configuration

I've been struggling to get my mic working after uninstalling pulseaudio and only using ALSA. Now the microphone does not work properly, It only does if tested with arecord at devices 6 and 7, but It does not work with analog device 0. I tried to configure the .asoundrc file without success

That is the output of arecord -l:

**** List of CAPTURE Hardware Devices ****
card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 6: DMIC (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 7: DMIC16kHz (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0

Can anyone help me?

Last edited by luiz (2022-08-30 22:42:23)

Maniaxx

Member

Registered: 2014-05-14

Posts: 761

Re: [SOLVED] ALSA microphone configuration

Did you check 'alsamixer' for any mode switches?
On the other hand, that 'HDA Analog' source rather sounds like a 'wave' loopback capture device or something (not a mic source). But that's just a guess.
What's wrong with devices 6 and 7?

Last edited by Maniaxx (2022-08-27 18:20:38)

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sys2064

luiz

Member

Registered: 2020-02-24

Posts: 9

Re: [SOLVED] ALSA microphone configuration

I believe HDA Analog is for headphone set, I do not have one plugged in, but I don't know how to configure the system automatic recognition of mic device (tried .asoundrc without success). I've checked capture and all of then are not muted and with volume up. How can I configure the right input device? Everything works fine in devices 6 and 7. Also, when I plug one headphone in it does work, but speakers do work too - so I believe it is a problem of source and sink configuration. Thanks.

Last edited by luiz (2022-08-27 20:50:39)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,263

Re: [SOLVED] ALSA microphone configuration

Create a .asoundrc with the contents

defaults.pcm.dsnoop.device 6

FWIW what are you ultimately using to test? The sink/sources distinction is plainly not as explicit for ALSA and this highly depends on what your actual recording application tries to do with ALSA devices, there are "multiple" ways of doing it and every application  might do there own slightly incompatible detection, which is one of the reasons pulse exists to have an actual proper detection/presenting mechanisms for default devices that stay the same.

Last edited by V1del (2022-08-29 12:29:57)

luiz

Member

Registered: 2020-02-24

Posts: 9

Re: [SOLVED] ALSA microphone configuration

I've been using arecord to test it as described on ALSA wiki (arecord -d5 -D hw:0,6 test.wav, for example). That way I could explicit the device I wanted to, but was unable to configure it the right way on file .asoundrc.
But firefox still needs pulse as I notice now, already reinstall it. Thanks!