this post was submitted on 27 Dec 2024
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well you try recording music on a pc with a stupid fan that won’t shut up….
he did a lot of good and bad things… but more than “just a businessman” b.s.
I volunteered at a university radio station a few times and was taught how to cut out AC/Heater/Fan noise from a recording using audacity on what I think was my second time going in. Recorded a PSA about cancer screening.
It's been almost a decade and a half so I don't remember exactly how, but the point is that it was something they taught people effectively walking in off the street.
I'd imagine it's different with a non-constant fan, but you can force computer fans to a consistent 100% speed through a handful of different ways.
It's just a low pass filter. Since human speech is massively out of the frequency range of a fan, you can just delete that whole frequency wholesale.
Audacity (or Audition/Cool Edit how the old guys know it) is a bit smarter. It can analyze a recording of the noise floor and then just attenuate that. It's bad for quality music but good enough to improve speech, old tape recordings and records.
i’m aware of this, but it definitely reduces sound quality