[mjn]

The way non-biological (i.e. mathematical, engineering) analyses are conducted has a substantial degree of unification as well. A typical engineering text focused on signal processing will develop an analysis method and then show example applications to audio, to images, to bridge resonance, to electronic circuits, etc. Things do get more specific as you dig further into domain-specific features and heuristics, but there's a large common foundation.

The usefulness of the kinds of experiments in this post, imo, is to investigate whether some things developed as domain-specific features actually belong more in the common foundation part. Sometimes something will be developed initially in computer-music or computer-vision not because it's really music or vision specific, but just due to where a particular person happened to be working. Or where research funding was allocated, for that matter. A funding trick computer-music people like doing lately is to apply their algorithms to bioinformatics as a way of funding research in their real domain of interest.

The next step, of course, would be to try to determine if these image-processing techniques already do exist in audio processing, just under a different name, or in some kind of variant.