Rogue Amoeba Software today announced Fission, a new audio editor for Mac OS X. Fission provides lossless editing of MP3, AAC, Apple Lossless, and AIFF audio files. With Fission, users can trim, split, and fade audio files, then save the result with no quality loss. Fission has been designed to be easy to use, with an accurate dual- waveform view to aide in visualizing audio, along with simple commands for editing. Fission is available now for US$32, and a free trial is also available.