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Comment by v3x3366 | Hacker News Reader

I certainly appreciate this idea. My WH-1000XM4s developed an issue where the NC has a feedback loop that sends a deafening shriek as soon as you place them on your ears and it lasts until you turn off the NC. I have to go through this (quite embarrassing in public) ordeal every time I turn them on. I'd just upgrade if they weren't so absurdly expensive in the first place.

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>WH-1000XM4s developed an issue where the NC has a feedback loop that sends a deafening shriek

Interesting. I have the original first gen WH-1000XM1s from 2006 and keep wanting to upgrade them to get the more advance NC and USB-C but they haven't broken down yet and they have no issues whatsoever, even the battery lasts long enough, while the modern ones seem plagued with various issues so I'm hesitant to upgrade.

I had XM2s that still work technically but have been quite abused so the hardware is falling apart. The bump in NC quality between XM2 and XM4 was pretty astounding

You're gonna be waiting for a while my mdr zx770 is still functioning perfectly

This has been happening to me lately. It's absolutely insane behavior that had the potential to permanently damage my hearing.

Those are basically just as repairable as the Fairbuds, and cleaning the insides has helped some people get rid of the feedback problem:

https://www.youtube.com/watch?v=WnFetuJajfI

Do you think this is a hardware or a software problem? I have these headphones myself, and I really like them. This sounds awful. I had to do a factory reset on them recently because they stopped connecting to one of my devices.

I have a similar issue with my airpod pros. I believe it is a microphone issue, especially since they work in non-noise cancelling mode just fine.

Same, I have airpod pro 2nd gens and if I lay down on a pillow a certain way I get a very loud squeal.

Definitely hardware, initially the problem was occasional but now happens every time. There are microphones inside the earcup (near the driver) that I believe are the issue

I had the same issue with NC feedback loop and was able to get the headphones replaced under warranty with little hassle. Worth a shot if yours are still covered.

I have the same issue with my earpods pro, it occurred after a couple of falls while wearing them, seems to be damage to a microphone or something.

My 3s do this as well but it's quite intermittent

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