How to capture audio with Soundflower

Store and replay anything playing through your Mac

Free Inter-application Audio Routing Utility for Mac OS X

Free Download

Soundflower is a Mac OS X (10.2 and later) system extension that allows applications to pass audio to other applications. Soundflower is easy to use, it simply presents itself as an audio device, allowing any audio application to send and receive audio with no other support needed. Soundflower is free, open-source, and runs on Mac Intel and PPC computers.

Visit the Soundflower Google Code page for complete information including downloads, source, and issues. For troubleshooting, read a discussion here.