Audacity

Audacity is a free, open-source audio editing program for Windows, Mac, and other operating systems. It's one of a few programs for working with multi-track sound, and is a popular choice for podcasters and musicians who don't have the budget for a more advanced audio editor. Audacity is free to download and use, though development of the program depends in part on donations, so you're encouraged to make a small contribution if you use the program and find it valuable. Here's how to download Audacity on your Mac or PC.