Afaik you have to replicate the same wave but in opposite “direction” (up/down sinus) to cancel out incoming sound so any anc earbuds have to have microphones and are dynamically shaping the sound.
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).
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
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.
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.
thanks, i use earplugs all the way up in there, and they block pretty much everything except movement, which isn't sound per se, but it is vibration, and that seems to be silenced by my QCII headphones which I've been wearing to bed for a while now, they block pretty much everything and I'm not woken up by my upstairs neighbors walking abound on their floor/my ceiling like i am when i've got ear plug in. iv'e tried the bose qcii earbuds and the sony 1000xm4, and in my experience neither of them hold a candle to my bose qcii over the ear headphones in carpetting of sound. i figured if there was a general "sound cancelling" frequency someone somewhere at sometime might have recorded it as a mp3 or flac and i could try to play it from any old earbuds whilst i slept, but it seems that's not technically how noise cancellation functions, but i do appreciate your response, being an expert, thanks again
Im wondering if the passive attenuation of your headphones is doing more work than the ANR system is? Regardless sound is perception and that’s all that matters. I think using any ear bud, headphone or even a speaker with Brown Noise playing loudly is likely the only sure way to completely block out your perception of all noise. Or just take some gummies and turn your brain off :)
WANT. I didn’t know that existed now. Best I’ve been able to do is foamies, that are better than nothing, but still let in a lot of sound. I will go look for new Bose IEM’s. Thanks.
Added: Bose QuietComfort Ultra Earbuds, I think. I’ll see what I can find out. 6 hour runtime is a bit unfortunate though, not enough to get through a work day.
Btw, a lot of the blurb about these is about music playback quality and I don’t want that at all. No music, just quiet. If they are 10db quieter at speech frequencies than typical 32db NRR foamies then that is probably worth the $250 to me. The amount of productivity I lose to office chatter distraction exceeds that in like no time.
Is there a reasonable way to replace the batteries once they crap out? Frankly I’d be fine with a wired version.
You could try playing white noise through normal earbuds, it might block some of the noise. It wouldn’t be as effective as noise cancelling, but it’s worth trying
The sound produced by ANC is the exact 180 degree inverse (or as near as possible) of the incoming bad noise.
It’s produced in realtime by dedicated signal processors and requires mic arrays feeding in the sound. The quicker your processing pipeline the better the match is and the more powerful the effect is.
Yup not possible. Sound is waves. Think of a sine wave that goes up and down. Noise canceling works by canceling the peaks and valleys of a sound wave with inverted valleys and peaks. If the peak is +1 for example, a sound wave with a valley of -1 played at the same time would cancel it out. This is simplistic terms of course.
The sound of your environment is constantly changing. If you wanted a static audio file to cancel out noise you would have to play some customized white noise. Not the effect you’re looking for.
Just extra context. You’ll need ANC buds. Heard Sony is good. Good luck!
Yes. On older generation/cheaper ANC this is perceived as increased “pressure”. It doesn’t seem louder but the physical sensation of loudness is there.
Looks delightful, makes me want to eat outside in the nice spring weather here. How was making the mozzarella? I’m seriously considering it with how hard it is to find the good stuff here (and how expensive it is when I do get my hands on it)
super. simple. takes about 20 minutes start to finish. buy liquid rennet and citric acid powder from amazon (or your supplier of choice), non ultra pasteurized milk (99.9% of all milk in the grocery store fits this category, but check), and follow this recipe (it's got a video too which helps visualize the process before making)
Updating your filter lists in uBlock Origin should fix it. Nevertheless, there are better solution for watching YouTube videos without Google’s crappy ads and trackers. There are private frontends like Piped and Invidious, you can use LibRedirect to automatically redirect all YouTube links to your desired frontend. You can also use a native client like FreeTube on Desktop, LibreTube or Tubular/NewPipe on Android, Yattee with this guide on iOS, iPadOS and tvOS, SmartTube on Android TV or this app if you have an LG TV running webOS.
I did have problems using YouTube many months ago, but I tried to watch a few videos each day and after a few days things started working normally again.
God damn, please remove these pesky ?utm_ parameters from your links. They make your links unnecessarily long and your comment becomes pretty annoying to read. You don’t even have to do it yourself, just click on “Copy Link Without Site Tracking” in Firefox. Make it a habit to always use this option. If you don’t want to deal with it at all, install the ClearURLs addon or enable the “AdGuard URL Tracking Protection” list in uBlock Origin.
Those URLs came from about:addons. I think it’s important to provide as much provenance as I can to help people get programs, so I didn’t edit the URL Firefox provided to me.
You can still use Right-click -> Copy Link Without Site Tracking
It’s a built-in feature that was added in Firefox 119 and it removes all kinds of nasty, unnecessary stuff in URLs. 80% of your comment consists of long URLs and you didn’t use new lines so it’s hard to see where the first link ends and the second one begins.
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