Installing Audacity
Audacity is available in a wide variety of distros. It’s generally available in the main repositories. For Debian/Ubuntu/Ubuntu-based distro: For Fedora: For OpenSuse: For Arch Linux: If you prefer Snaps or Flatpaks, those are also both available as well. or
Installing PulseAudio Volume Control
This is the application you’ll be using to record audio from the system. It’s a great way to snag audio from videos, songs, or other media to use for a later date. If you’ve ever wondered how people get high-quality audio samples, this is one way to do it. PulseAudio Volume Control is available in most major repositories. You’ll use the same commands as above to install it. For Debian/Ubuntu/Ubuntu-based distro: For Fedora: For OpenSuse: For Arch Linux: PulseAudio Volume Control is also available as a Flatpak but not as a Snap.
Recording Sound from a Microphone
With your microphone plugged in to your system, open Audacity. It should automatically find your hardware and open up ready to record. Just click the big red record button, and you’re recording. It’s as simple as that! Audacity is such a simple tool to use that it’s hard to go wrong.
Recording Sound from Your System
This one is a little more complicated. Hit the record button, just like above. This will start recording from your microphone. After you’re already recording, open PulseAudio Volume Control and navigate your way to the “Recording” tab. Click on the drop-down menu that says: “ALSA plug-in [audacity]… from.” Choose the option that says: “Monitor of Built-In Analog Stereo.” This will keep track of what information applications are sending to PulseAudio and record that rather than the sound coming in from your microphone. From there, go ahead and play whatever sound you’d like, and you’ll see that sound showing up in Audacity as it plays. You can stop recording, scrub through playback, and treat whatever sound you’re recording just like any other audio input into Audacity. I hope you learned a useful thing or two about Audacity and PulseAudio Volume Control. Now that you know how to record your system sound in Linux, make sure to check out some of our other Linux audio articles, such as improving your audio with PulseEffects, how to use ALSA utilities to manage audio from the terminal, and the essential tools for producing high-quality podcasts in Linux.