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Question about Active Noise Cancellation alternatives (fedia.io)

submitted 6 months ago by downpunxx@fedia.io to c/technology@lemmy.world

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I've got a audio/tech question, maybe someone here might have some insight into.

I'm in need of noise cancellation for various and sundry reasons. i own a pair of BOSE ANC headphones which are tits, but have been looking for a pair of GOOD ANC earbuds that don't cost $300 bucks, and had an idea that all ANC appears to be, when you break it down, is sound that the earphones/earbuds produce which bounce around in the ear canal and hit the ear drum in certain ways as to "cancel" out various types of background noise.

Again the ANC on my BOSE are amazing. Does anyone know, or have even heard of (no pun intended) anyone who has produced "noise cancelling" sound files?

It seems as if noise cancelling hardware like earphones are producing sounds that cancel out noise, mp3/flac files of "noise cancelling" sound could be on offer somewhere.

Dunno, figured i'd ask. Hope this is the right place to do that, and I'm not breaking any rules, I didn't know where else to post this.

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[–] Boozilla@lemmy.world 16 points 6 months ago* (last edited 6 months ago) (11 children)

The A in ANC stands for Active. It is actively listening to ambient noise in your environment to cancel it out with a waveform tailored to do so in real time. If the noise in your environment is very static (like a hum or whirring) it might be possible to embed a cancelling sound in the audio file. But it's likely it still won't line up properly to really cancel it. It's more likely to cause a worse sound because of being out of phase (like two leaf blowers going at the same time).

I hope that makes sense.

[–] downpunxx@fedia.io 1 points 6 months ago (10 children)

it does, appreciate the response, i'm just trying to find a way to cancel noise using any ole earbuds to sleep with, and even the top of the line anc earbuds don't hold a candle to over the ear anc headphones

[–] czardestructo@lemmy.world 12 points 6 months ago (7 children)

So I work for Bose. ANR ear buds are notably better than ANR headphones because they totally block your ear and adjust the ANR based on a microphone literally inside your ear. It records what is heard in your ear and cancels it, our latest buds are uncomfortably good at this. I find the absolute quiet a bit unsettling.

But to your question, you just want quiet while you sleep? What about good old foam ear plugs? They work fairly well when put in far enough.

[–] femtech@midwest.social 1 points 6 months ago (1 children)

Latest that are out or still in the lab?

[–] czardestructo@lemmy.world 1 points 6 months ago

The latest out in the world, the Quiet comfort ultras. Once you find the correct sized stability band and ear tip sizes you have two exceptional gaskets to block out the world. They work amazingly well.

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