You can record sounds onto your computer if you have a microphone or other recording equipment connected to it.

To start a basic sound recording application, press Alt+F2, type gnome-sound-recorder into the text box and then click Run. See the Sound Recorder manual for instructions on how to use it.

For more advanced recording needs, you may like to try a multi-track audio editor such as Jokosher or Audacity.

Many other professional-level recording tools are available for Ubuntu. See the Ubuntu Studio website for more information.