it kind of sounds like an audio compressor, it gave me a similar idea to toadstorm you could take the min and max of several neighbours, then blur it, then normalize to that range
like a moving average with a rectangle window except min/max instead (en.wikipedia.org/wiki/Moving_average)
Attachments in this post:
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20261604/11/26/2026-04-11_14-03-42.mp4
http://fx-td.com/houdiniandchill/wp-content/uploads/discord/20261604/11/26/normalize_windowed.hiplc