Bug 217730

Summary:	Lenovo Thinkpad T490 Microphone Noise
Product:	Linux	Reporter:	Conan (formyneeds2)
Component:	Kernel	Assignee:	Virtual assignee for kernel bugs (linux-kernel)
Status:	NEW ---
Severity:	high	CC:	bagasdotme
Priority:	P3
Hardware:	Intel
OS:	Linux
Kernel Version:		Subsystem:
Regression:	No	Bisected commit-id:

Description Conan 2023-07-30 01:46:49 UTC

I have reported this issue to the Arch but they redirected me to here.
https://bugs.archlinux.org/task/79245


Description:
When I use microphone for online meetings, my sound reaches them with a high noise that prevent it from being understood. I tested the microphone on my own and yes the noise is there. I tried pulseaudio and pipewire, but neither has solved the problem. This problem is not stemming from hardware since I do not have this issue with Windows 10.

Additional info:
* pulseaudio: 16.1-6, piprewire: 1:0.3.75-2, kernel: 6.4.6-arch1-1

Steps to reproduce:
1 - Open a chat app/website or online meeting tool like, Whatsapp, Signal, Zoom, etc.
2 - Speak to the microphone. You can use Whatsapp and Signal to listen your microphone sound.

Comment 1 Bagas Sanjaya 2023-07-30 02:59:15 UTC

(In reply to Conan from comment #0)
> I have reported this issue to the Arch but they redirected me to here.
> https://bugs.archlinux.org/task/79245
> 
> 
> Description:
> When I use microphone for online meetings, my sound reaches them with a high
> noise that prevent it from being understood. I tested the microphone on my
> own and yes the noise is there. I tried pulseaudio and pipewire, but neither
> has solved the problem. This problem is not stemming from hardware since I
> do not have this issue with Windows 10.
> 
> Additional info:
> * pulseaudio: 16.1-6, piprewire: 1:0.3.75-2, kernel: 6.4.6-arch1-1
> 
> Steps to reproduce:
> 1 - Open a chat app/website or online meeting tool like, Whatsapp, Signal,
> Zoom, etc.
> 2 - Speak to the microphone. You can use Whatsapp and Signal to listen your
> microphone sound.

* What hardware are you using (also show lspci output)?
* Can you test v6.1.y stable series and latest mainline (v6.5-rc3)?
* Can you reproduce this issue with any sound recorder programs that are
  available on Arch repositories?

Comment 2 Bagas Sanjaya 2023-07-30 03:04:26 UTC

(In reply to Conan from comment #0)
> I have reported this issue to the Arch but they redirected me to here.
> https://bugs.archlinux.org/task/79245
> 
> 
> Description:
> When I use microphone for online meetings, my sound reaches them with a high
> noise that prevent it from being understood. I tested the microphone on my
> own and yes the noise is there. I tried pulseaudio and pipewire, but neither
> has solved the problem. This problem is not stemming from hardware since I
> do not have this issue with Windows 10.
> 
> Additional info:
> * pulseaudio: 16.1-6, piprewire: 1:0.3.75-2, kernel: 6.4.6-arch1-1
> 
> Steps to reproduce:
> 1 - Open a chat app/website or online meeting tool like, Whatsapp, Signal,
> Zoom, etc.
> 2 - Speak to the microphone. You can use Whatsapp and Signal to listen your
> microphone sound.

Can you also show dmesg (or journalctl output)?

Comment 3 Conan 2023-07-30 17:47:27 UTC

Thanks for reply.

These are outputs:
https://pastebin.com/VdsDQ7s5
https://pastebin.com/W9xMjrBH

I have tried with v6.1.39 and v6.5rc3 and the problem continues. I also tried this with krecorder from Arch repositories. The problem is still there. 

I also realized that if I lower microphone volume below half, the noise goes away. If I raise it above half, it comes.

Comment 4 Conan 2023-07-30 18:22:22 UTC

(In reply to Bagas Sanjaya from comment #1)
> (In reply to Conan from comment #0)
> > I have reported this issue to the Arch but they redirected me to here.
> > https://bugs.archlinux.org/task/79245
> > 
> > 
> > Description:
> > When I use microphone for online meetings, my sound reaches them with a
> high
> > noise that prevent it from being understood. I tested the microphone on my
> > own and yes the noise is there. I tried pulseaudio and pipewire, but
> neither
> > has solved the problem. This problem is not stemming from hardware since I
> > do not have this issue with Windows 10.
> > 
> > Additional info:
> > * pulseaudio: 16.1-6, piprewire: 1:0.3.75-2, kernel: 6.4.6-arch1-1
> > 
> > Steps to reproduce:
> > 1 - Open a chat app/website or online meeting tool like, Whatsapp, Signal,
> > Zoom, etc.
> > 2 - Speak to the microphone. You can use Whatsapp and Signal to listen your
> > microphone sound.
> 
> * What hardware are you using (also show lspci output)?
> * Can you test v6.1.y stable series and latest mainline (v6.5-rc3)?
> * Can you reproduce this issue with any sound recorder programs that are
>   available on Arch repositories?

Since I don't know if you get notified when I comment without replying, I post my comment again.

Thanks for reply.

These are outputs:
https://pastebin.com/VdsDQ7s5
https://pastebin.com/W9xMjrBH

I have tried with v6.1.39 and v6.5rc3 and the problem continues. I also tried this with krecorder from Arch repositories. The problem is still there. 

I also realized that if I lower microphone volume below half, the noise goes away. If I raise it above half, it comes.