5 votes

Why can't an adapter be designed to turn normal headphones in to noise canceling headphones?

In short, no, It's not possible. The distances & times are measure in microns & nanoseconds. Any retro-fit kit would need to be made for each specific headphone model, which is simply not ...
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  • 7,039
4 votes

How can I eliminate sounds below a certain threshold?

It really depends on the material; are these sounds that you want to remove truly peaking at a lower level than every bit of the speech? How about in loudness or 'energy'? You need to look into the ...
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  • 2,176
3 votes

Noise Cancellation Headphones

Yes, you will get noise cancellation even if you're not playing music. Don't take my word for it - any search engine should give you hits like this and this. There are some that will cancel noise even ...
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2 votes

Noise Cancellation Headphones

I would say that it does depend on the brand, and the hardware used. I can tell you that Bose QC15s and QC3s actively cancelled out background hum and noise when activated even when there was no ...
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  • 216
2 votes

Removal of repeating sound in sound space

To be honest, it would take longer & be more effort to attempt to get your playback exactly out of phase with the beep than it would to take a large hammer & go find where it's coming from;-) ...
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  • 7,039
2 votes
Accepted

How can I eliminate sounds below a certain threshold?

I doubt you will get an acceptable result with a simple gate setup: while you may get rid of low volume breathing sounds, it will also chop away natural endings. Noise reduction plugins with noise ...
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2 votes

Mad scientist: How to cancel out hum of known amplitude from signal of unknown amplitude?

For there to be any chance of 'subtraction' to work, there must be a phase-relationship between the two signals, which there is not likely to be in any of the cases you suggest. To understand why ...
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  • 8,394
1 vote

How to record audio while riding a bicycle?

Your two biggest problems are going to be wind and vibration. A bike's vibration is the worst type, short, sharp vibrations that rattle your teeth. A shock mount attached to the bicycle itself is ...
1 vote
Accepted

Is your own voice cancelled during video calling?

Is your own voice cancelled during video calling? Yes, if you are using speaker phones. Speaker phones (or room based mic/speaker systems) deploy "acoustic echo cancellation". The speaker knows what ...
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  • 211
1 vote

Active noise cancellation inside public transit car?

Yes, to an extent. But this has to be done during the design of the vehicle. You can build in sensors that measure vibrations in the bodyshell, actuators that try to counter these vibrations, and ...
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  • 1,548
1 vote

Active noise cancellation inside public transit car?

No. Nope. Not possible. Cannot be done. At all. Ever.
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  • 8,394
1 vote

Suggestion on changing the quality of generated sound

You should investigate the overlap-add technique of merging your audio buffers. It sounds to me that the buffers are windowed but are possibly just played out in sequence, causing the 'vibration' you ...
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  • 8,394
1 vote

Silenting the noise down, after recording

Surprised nobody here has mentioned actual denoising algorithms. If you can't remove the source of the noise or can't re-record what you already have, look into effects such as izotope rx and edison. ...
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1 vote

Is it possible to extract speech from an audio with noises at the same/higher level than the speech using noise cancelation/source separation

If your audio allows for source separation and you can phase reverse one channel, then you may be able to remove sound that is in both channels - it really only works well with very defined audio ...
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  • 5,848
1 vote

How can I eliminate sounds below a certain threshold?

Yes sortof maybe. Special plug ins can help a lot depending on the exact problem. The only correct thing to do is to get a better recording. Teach the speaker/vocalist how to use the mike to avoid ...
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1 vote

Sound proof a room, car noise

What microphone and what working distance are you using? The ultimate goal is maximizing the "Signal to Noise Ratio" (SNR) There are TWO ways of doing that, and typicaly you can use a combination of ...
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1 vote
Accepted

Sound Recording Noise in Different Places

Most likely this is the result of poor isolation of the ADC(analog to digital converter) in your laptop's audio hardware. Typically, without power conditioning, there are large amounts of variation ...
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  • 8,081
1 vote

How to cancel out siren noise as much as possible?

What type of earplugs are you using? If it's just cheap standard foam / wax ones, then perhaps it'd be worth investing in a higher-end ones. You can get ones that are custom-made for your own ears, ...
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  • 1,336
1 vote

How to cancel out siren noise as much as possible?

White noise etc don't cancel the sound - they tend to work by drowning out the sound. I have successfully used noisy fans to do this. It can be quite effective as your ear gets used to continuous ...
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  • 5,848
1 vote

remove static noise from audio recording

Have you looked into using a noise reduction tool? There are plenty available on the market, check-out this article: best-noise-reduction-plugins
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1 vote

Eliminate sparrow chirp from sound track

Since you are asking how to remove these bachelor sparrow chirps from an already existing recording I would suggest using a spectral editor like the one found in Adobe Audition or, more recently in ...
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1 vote

Eliminate sparrow chirp from sound track

Buy a gun failing that, try some temporary soundproofing on the window. Higher frequencies are the easiest to dissipate. And maybe move the mic/setup around.
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  • 2,176
1 vote

Eliminate sparrow chirp from sound track

You will need to employ some EQ-kung fu of precise editing, and equalise unwanted frequencies out manualy. Try multiple very narrow bands (as opossed to a high-shelf EQing, which would hamper all the ...
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  • 271

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