Bug 204419

Summary:	Noise cancelling on ALC 3232
Product:	Drivers	Reporter:	Moritz Zwerger (bixilon)
Component:	Sound(ALSA)	Assignee:	Jaroslav Kysela (perex)
Status:	RESOLVED WILL_NOT_FIX
Severity:	normal	CC:	bixilon, tiwai
Priority:	P1
Hardware:	Intel
OS:	Linux
Kernel Version:	5.2.9	Subsystem:
Regression:	No	Bisected commit-id:

Description Moritz Zwerger 2019-08-02 22:59:18 UTC

Hi there,
I bought an Lenovo W540. I am running Kubuntu 19.04 with the newest stable linux kernel. 
My problem is, that I miss the noise cancelling on the internal microphone which is offically supported by the ALC3232. I can not find any datasheets more(I found one weeks ago and forgot to save it). It was only software side supported. The proprietary driver (Windows) supports it well.

You can hear every tab on a key on the keyboard. 

I started a thread on the german ubuntu forum (https://forum.ubuntuusers.de/topic/extrem-schlechte-soundqualitaet-mic).


Alsa Information: http://alsa-project.org/db/?f=11daefd5b84971428bb765603344f14429c19faa


I tried several ways: alsamixer, alsa modules, pulse modules,...



Can you please implement this feature? Do you need more informations? 


Thanks

Comment 1 Moritz Zwerger 2019-08-22 13:04:25 UTC

No Answer?

Comment 2 Takashi Iwai 2019-08-22 13:22:23 UTC

I don't think it's supported in the hardware level, but done more or less in software...

Comment 3 Moritz Zwerger 2019-08-22 20:01:12 UTC

I already wrote its software side. How to set it up? I didn't find any option/entry to do this

Comment 4 Takashi Iwai 2019-08-23 07:08:57 UTC

It's not done in kernel.  Please ask about it in the upper layer like PulseAudio or application itself.

Comment 5 Moritz Zwerger 2019-08-23 07:58:23 UTC

Here we go: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/719


//closed