What is Audacity?

Audacity is a free audio editing software that has the ability to record and edit sounds. With this software, you can mix, record, and edit various sounds/songs. You can also choose which  type of file you wish to save it to. There are various uses for the software Audacity. You can..

• Record live audio (using a built in/plug in microphone)
• Cut, copy, paste, delete, duplicate, and split audio files 
• Change the speed, pitch, or volume of a recording
• Apply effects to any part of the sound
• Align audio segments

You can create ringtones out of various mp3 files and add effects to enhance the sound.