Re: Why the playing audio will be recorded into the mic?

[guest271314 <guest271314@xxxxxxxxx>]

This https://github.com/guest271314/captureSystemAudio?tab=readme-ov-file#pulseaudio-module-remap-source is what I have used to create a remapped source that is the monitor device that can be selected as a microphone by interfaces such as navigator.mediaDevices.getUserMedia() on Chromium and Chrome browsers, which forthe past 5 years did not provide a means to capture system audio, until this https://gist.github.com/guest271314/baaa0b8d4b034ff4e9352af4f2bbf42c was recently implemented 

pactl load-module module-remap-source \
  master=@DEFAULT_MONITOR@ \
  source_name=speakers source_properties=device.description=Speakers \
&& pactl set-default-source speakers

On Sun, May 26, 2024 at 7:07 AM 赵成义 <zhaochengyi@xxxxxxxxxxxxx> wrote:

Are you expecting to be able to record "What-U-Hear" in the headphones from the microphone?

> Yes.

On Wed, May 22, 2024 at 7:40 PM 赵成义 <zhaochengyi@xxxxxxxxxxxxx> wrote:

Hi guys,

>>  I mean I don't need to record played audio, but it is recored into the mic.

>> I can confirm that ALSA loopback is set to false state, and the sink monitor
>>  is not used.
> You probably need echo cancellation

The output audio is not sent to the speakers, but from the headphones, 

and the mic cannot pick up the played audio from the air, 

so I don't think it's an echo issue.

I am using a four-section headset, and the input and output are on the same audio port. 

Is it possible that there is signal interference in the input and output?

Thanks,

Chengyi