Recording from stdin AND ONLY from stdin

Hi, new to the forums.

I’m running Audacity 2.2.2 on PureOS 9.0, which is based on debian. Desktop environment is GNOME 3.30.2.

I am trying to record audio from stdin ONLY. However, Audacity keeps picking up the audio external to the mic jack. So I get a nice level of hiss and external noise in addition to the sound output from the laptop. If I speak, it picks it up… even though I am not using a mic.

I used to be able to record stdin with Audacity years ago on Ubuntu. Then Pulse came along.

I went into alsamixer but it’s been so long since I’ve done anything with it that I can’t remember what I used to do… to get it to work on Ubuntu 10 years ago.

The Pulse mixer applet does not seem to want to open on this laptop. So I don’t have options there.


You need to fix your computer sound system.
Do you have “pavucontrol” installed? Can you run pavucontrol?