http://www.techradar.com/news/the-best-free-audio-editor

The complexity of some audio editors might be enough to scare you away, but it's more likely to be the price tag attached to such software that sends you running. Never fear, though – there are free tools that pack professional-level audio editing tools in a user-friendly interface that you can master in minutes.

Whether you're looking for a tool to help create a soundtrack for your home movies, or you need something to help you convert your old record and cassette collection into MP3 format while removing background static, there's a free audio editor out there for you.