Supplementary code for the IEEE Access corpus paper, split out of
hoa-mic-comparison-aes2026 (which is scoped to the AES Copenhagen paper
specifically) since most of this is about the full 23-session, 7-year
corpus rather than the 2-session mic comparison that repo documents.

revision_stats.py reimplements the per-order energy metric locally rather
than importing from the AES repo, so this repository has no cross-repo
dependency and reproduces standalone from the committed frame-energy
caches without downloading the session audio.