Well, I didn’t know this was free open source software…
I first used it in college, when we had to make a podcast that lasted a few minutes, we used Audacity for putting everything together! Its such an easy to use piece of software, for free. I had never used Audacity before, and when I got to grips with it - you can do so much stuff!
The software makes it easy to do simple tasks, such as adding special affects to sounds e.g. Echo, fast forward, slow motion, fade in/out etc. You can work with different sounds on different ‘layers’, allowing you to play different sounds over each-other. You can set Audacity to record sounds from your microphone, or direct from your speakers (a bit like standard Sound Recorder for Microsoft computers).
Audacity is available for all major operating systems, including Mac, Windows and Linux.
Check out these useful links:
Thanks,
WizzKid

I got audacity a few years ago but by far the best use I’ve seen was when my dad bought a record turntable thing that plugged into USB and could be used to turn old vinyl records into mp3. Audacity came free with it. (You needed it for recording etc.)
Also came free with a learning to use VBA excel book aswel so it’s been around a while now.
It pops up all over the place!