this post was submitted on 26 May 2024
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Asklemmy
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I’m confused… How do you think ANC works, exactly?
White noise? I mean, sure, I understand the local headphones having to be aware of sound, but this was all in connection with the app they try to get you to download. And then when I avoided that and went on their helpline, they were trying to get me to sign the same privacy policy, but it was buried in another privacy policy for the chat.
Hey, call me paranoid, but there’s no reason for them to tell me they can if they want to turn my earbuds into bugs for their marketing purposes. Maybe that’s just me.
The active, in active noise cancelling means listening by using microphones then playing the exact inverse of the heard sound to cancel the noise, actively. Opposed to passive, which tries to restrict noise like ear protection by enclosing an ear and adding insulation against noise from getting in.
So no, not white noise, though that'll sometimes be generated too. You'll realise quickly most active noise cancelling headphones only listen on the microphones on specific frequencies which is why different settings can allow sound through.