this post was submitted on 27 Dec 2024
1324 points (97.9% liked)
Greentext
4657 readers
1710 users here now
This is a place to share greentexts and witness the confounding life of Anon. If you're new to the Greentext community, think of it as a sort of zoo with Anon as the main attraction.
Be warned:
- Anon is often crazy.
- Anon is often depressed.
- Anon frequently shares thoughts that are immature, offensive, or incomprehensible.
If you find yourself getting angry (or god forbid, agreeing) with something Anon has said, you might be doing it wrong.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
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