Comparing two audio files

[cmhawke]

Is there a process in PT and/or another app that can compare two identical/similar audio files (like two different bounces of the same track, or bounces of slightly different versions of the same track) and show/report any differences? Something analogous to Photoshop's Difference Blend Mode to compare layers may work. The formats of the files to compare would be the same (16b or 32b wav). The manual methods I use at the moment are not ideal.

[BScout]

Phase invert one against the other at unity level and print the sum of them together. Then look at the resultant file in iZotope RX (or just listen). Everything exactly the same will cancel leaving the difference