I'm trying to help someone find Mac software that can reveal spectrographic imagery in audio files, a la: http://www.bastwood.com/aphex.php Looks like Metasynth can do it, but it's $500: http://uisoftware.com/MetaSynth/ Anyone know of inexpensive or OSS capable of visualizing audio this way? (Bonus if it can also create audio based on imagery). Thanks, Scot