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Old 20th December 2020, 04:15 PM
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moltuae moltuae is offline
RIP 27/02/2021 :-(
Join Date: Sep 2014
Location: East Lancs.
Posts: 2,680

Originally Posted by Ronin View Post
I'll be trying to get a noise cancelling app installed on this radio, to see if it'll make the cabin noise much quieter, it works the same way as those fancy noise cancelling headphones, playing the opposite frequency of the 'noise' to cancel it out.
Wouldn't that require a microphone near the source of the noise though?

Noise cancelling headphones have a microphone outside of the headphones, which is amplified, inverted and then subtracted from the signal that drives the headphones. Doing something similar to reduce cabin noise would surely require microphones that are external to the cabin, otherwise you'd create some kind of noise cancellation loop that perpetually removes and re-adds the noise.
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