Using teletype sounds in 2026 is stupid. Might as well have Morse Code running in the background, or perhaps the clicking of a 19th century telegraph. Do smoke signals produce any audio?
I would bet you would have a hard time finding a listener that knows what the sound actually is, other than “noise that’s always been there.”
Serious news operations were getting rid of teletype machines 40 years ago. At my job they were initially replaced by dot matrix printers (totally different sound) and by computers not long after that.
If you were interviewing for a job at a station in the 1990s and discovered they were still using teletype, the best advice was to run away as fast as you could.
Might as well stick a mic out the window and capture the street sounds of NYC. At least that would be something contemporary.