A very long time lurker here apart from a posting on the missing teaspoon thread a few months back.
When I was about 20 (1977, I think) I worked at Pye Records in Mitcham, South London, as a music tester. I worked on the night shift and although I hadn't told my employers it was a job for 6 months or so so as I could save up for long long holiday in Greece. It was a factory that stamped out records on presses and my job each night was to be assigned 6 presses and at set intervals I would go and get a record from each press and check it for various imperfections. Part of the job was to play a record from each press in room that had about 20 or so other music testers all with their own presses to check on. We had state of the art record decks, amplifiers and head phones. I think it they were made by B & O.
At times it was a great job especially if I had 6 different records on each press. The supervisor tried to arrange it so as each music tester would listen to the type of music liked by the tester but that wasn't always possible. For a one week period all I had to test was the BBC's More Death and Horror. After a few days I would go to sleep after work and all I could hear in my head was sounds like Falling Scream, Death by Burial, At the Dentist, Death by Garroting, Wind Through Crack in Door, and so on all in superb quality. I ended up having nightmares for a short while. Now though they are just sounds on a record and years back in the past.
Edit: I'd forgotten until I looked at the list, the one that always made me laugh for some reason. It's listed as Death of a Fly. I remember it as Death of a Fly in a Power Press or similar. You hear the sound of the power press opening, a sound of the fly walking or crawling (?), the sound of the press shutting and then the crunch sound of the fly being crushed. I seem to remember that on the LP they described how the sound effects were made and it was all very simple. I seem to remember the Gouging Eyeballs was done with potatoes.
https://www.discogs.com/Unknown-Artist-BBC-Sound-Effects-No-21-More-Death-And-Horror/release/967744