DAFlys
Captain
Flight distance : 312090263 ft
United Kingdom
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Mark Compton Posted at 1-6 06:16
Noise cancelling microphones are wonderful. They can filter out cabin noise from helicopters and other aircraft, and still pick up a conversation.
I saw an article in Popular Science a (long) while back, where they installed a microphone and speaker system on a lawn mower. The system recorded and inverted the sound at the same noise level, cancelling out the noise of the mower.
The same thing gets done when using Noise cancelling headphones, but instead of piping the inverted noise out, they simply delete that audio.
I still dont see how useful or productive it would be, being 100ft away from some quiet sound like some water running vs screwing props within inches of the microphone. Very different to a conversation inside a cabin. |
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