Audacity, a free, open-source audio editing application, has the ability to capture nearly any sound that is playing on a computer’s sound card. As a result, Audacity can record streaming audio, including the soundtracks of streaming video files. The procedure is not without its problems, but in general Audacity does a good job of letting you save streaming audio as MP3s or other sound files. Writer Bio

Can Audacity Record Streaming Audio  - 94