On Thu, Nov 17, 2022 at 12:49:25PM +0100, Florian Paul Schmidt wrote: I wrote something similar a few months ago. It doesn't change the gain, but replaces short (a few ms) high level fragments by a recent lower level one, crossfading between them with some look-ahead. The purpose was to remove the high level impulsive noise (caused by little pebbles being moved in the nearby surf) from the audio of an underwater webcam: <https://www.skylinewebcams.com/webcam/ellada/crete/rethymno/karavostasi-underwater-cam.html> BTW, this is one of the places I go to for scuba diving in the summer. The 'landscape' is entirely artifical, created by the local diving center by moving big and small rocks from another site about 1 km away. This is the place they use for the 'discover scuba diving' program, a 60-90 minutes excursion for people who don't yet have a scuba certification (depth is less than 10 m). It has become very popular with the local fish population (including lots of moray eels) who will show up in big numbers as soon as they notice the divers. Ciao, -- FA