I’ll start: I love listening to the washing machine running. Relaxing, sounds like hard work I don’t have to do. Looking forward to the clean clothes and nice smell! Sewing machine sound makes me all giddy. Sound of my 1988 car engine.
I find chain saws and brushcutters extremely annoying. On some days in spring and autumn I can get quite grumpy about it, even though I rationally know they also save a lot of hard work.
At work we have a little thingy for digitizing 8mm/super8 film reels. It’s kinda janky, doesn’t actually play the reels at normal intended speeds or even at all really, in a sense. Rather, it takes a picture of each individual frame and then turns them into a video. I’ve been told by purists that this is far from ideal.
However!
The advancing film mechanism makes this incredibly satisfying rhythmic “ka chunk, ka chunk, ka chunk” noise that I reallllyyyyy enjoy. Check it out: https://loops.video/v/g53y-EtF-C