TwistedWave is a very easy to use and powerful audio editor. It supports Audio Unit plug-ins and many file formats, including wav, aiff, caf, mp3, mp4, FLAC, Ogg/Vorbis and ambisonic sound files. Good multichannel support. TwistedWave lets you easily add, remove or reorder channels. You can also apply Audio Units to multichannel files, or to a selection of channels. Unlimited undo and redo which works instantly. Zooming in and out of the waveform is very fast.
- you have to have a pre made file