How to record from Mixer

I want to record the computer sounds such as youtube or other audio playing.

Dell 5755 Ubuntu 20.04

audacity-linux-3.1.3-x86_64.AppImage

ALSA
HD-Audio Generic:ALC3223 Analog (hw1,0)
Pulse
Default


Sound settings:
Input Device:
Headset Microphone-Built in Audio = ( unplug headphones, replug and choose MIC then can record voice through headphone speakers)
Microphone Built in Audio = (no audio at all from laptop but faintly can hear on playback my fingers hard tapping the laptop)
Internal Microphone Built in Audio = (can hear audio but record outside noises)


sudo apt-get update -y
sudo apt-get install -y pavucontrol
pavucontrol

While youtube is playing and audacity is recording I see under Recording:
ALSA plug-in [audacity]…from Built-in Audio Analog Stereo

Play back recording and zero from youtube and I just hear me typing and clicking the mouse.



Tried:
sudo apt-get install alsa alsa-tools.
Source: https://frameboxxindore.com/windows/how-do-i-install-alsamixer-on-ubuntu.html

How do I add myself to the mixer?

Did a hard restart. Nothing changed.

arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: Generic [HD-Audio Generic], device 0: ALC3234 Analog [ALC3234 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

want to record the computer sounds such as youtube or other audio playing.

I got my answer using a different program found at https://vitux.com/how-to-record-audio-in-ubuntu/

audio-recorder.

:slight_smile::):):):slight_smile:
:smiley: :smiley: :smiley: :smiley:

To do that with Audacity: https://manual.audacityteam.org/man/tutorial_recording_computer_playback_on_linux.html