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> Great Noise cancelling headphones are very expensive I think a smart signal processing/soundtech/AI hacker could create a software program that uses a comput
by d_burfoot 10y ago
> Great Noise cancelling headphones are very expensive
I think a smart signal processing/soundtech/AI hacker could create a software program that uses a computer's audio to destructively interfere with other sounds in a room. Say there is an annoying mechanical whine coming from outside your bedroom. You position the computer's microphone near your bed, then tell the program to start listening. The program learns the audio pattern of the whine, and then begins to emit an antiwhine that cancels it out.
- petra 10y agoNoise cancelling headphones work much better and are much easier to do than room level noise-cancellation. Why? Well, the whole point of noise-cancellation is to create an interference pattern in your ear, that is as similar as possible to the noise in your ear. The farther you get from your ear that becomes harder, because of the room's acoustics, because of latency, because of the fact your head is moving, etc. And we see that in the results of room level noise cancellation attempts in the past.