Levelator is an app that adjusts the audio levels within your podcast or other audio files for variations from one speaker to the next, for example. It's not a compressor, normalizer or limiter although it contains all three. It's much more than those tools, and it's much simpler to use. The UI is dirt-simple: Drag-and-drop any WAV or AIFF file onto The Leveler's application window, and a few moments later you'll find a new version which just sounds better.
Xilisoft DVD Audio Ripper for Mac is what you need to rip audio from DVD
