Stanford School of Engineering. Audiko does free ringtones for the iPhone. I remember a time when making ringtones used to be a very cumbersome experience.
My technique of choice was to use the open-sourced Audacity then do various conversions in iTunes or Quicktime Pro by tweaking some of the advanced settings. However, the Web has spawned newer, less tedious methods. On of them, Audiko, is a particularly well-done effort, letting you grab audio tracks from your hard drive or the Web and customize them for use on your mobile phone. Audiko. Open Source Windows - Free, Open-Source software for Windows XP.