Quote Originally Posted by bgalbraith View Post
You typically used a digital audio workstation (DAW). Depends on your computer platform and what kind of effects you want to play with. Mac uses get Garageband for free or you can upgrade to Logic, which is aimed at professionals. In terms of free and cross-platform, there is Audacity (http://audacity.sourceforge.net/) on the simple end to more powerful DAW tools like Reaper (http://www.reaper.fm/). Reaper nags you to buy a license, but does not require it and doesn't disable any features if you go past the trial date.

There are of course other commercial DAWs (Ableton Live and Renoise to name a couple), and everyone has their own they tend to swear by. I use Reaper at the moment and find it's more than sufficient for my hobby-level needs.
Thanks for the info !