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How do those videos of pure tones in the sub 1Hz or in general any Hz tones produce that tone for the video? (sopuli.xyz)
submitted 11 months ago* (last edited 11 months ago) by to c/nostupidquestions@lemmy.ca
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I want to be able to do that too, like this one for instance

PURE 0.33 Hz EPSILON BINAURAL BEATS | Epsilon Waves | Reality Shifting ⚑️

It would be great to be able to produce any arbitrary Hz pure tone or whatever that example is

Like 0.165Hz or anything

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[–] 10 points 11 months ago (4 children)

The (unproven) theory behind binaural beats is that one ear hears a slightly different frequency to the other, with the difference being the frequency they claim. As said by another poster, it’s pseudoscience.

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  • [–] 5 points 11 months ago (2 children)

    That's not the part that's pseudoscience. The pseudocience part is that the illusory beat can train your brainwaves to xyz frequency using binaural beats.

    Anyone with stereo earbuds can see that the binaural beating effect is in fact real and easy to document by removing one earbud and hearing a solid unchanging tone until they put the Other back in, so long as two similar tones are played who's destructive interference between one another would in open air create valleys of 0 relative amplitude. Those valleys are the beats.

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  • [–] [S] 1 point 11 months ago (1 child)

    Im not sure thats it either, theres also monaural and isochronic beats and Im pretty sure there is a common mechanism of entrainment where you become entrained to the current tone and you follow whatever direction the sequence goes or if it remains the same you modulate towards it

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  • [–] 4 points 11 months ago

    Hey OP, you should probably get off of YouTube for a bit and go read the Wikipedia articles for those things.

    Isochronic literally means "regularly timed" and "monaural" beats are just destructive interference happening before perception instead of after.

    Some concepts you should look into:

    https://en.wikipedia.org/wiki/Binaural_unmasking - Like binaural beats this relies on two datastreams, one per ear. This is likely the mechanism which makes binaural beats possible, via misuse of the mechanism.

    https://en.wikipedia.org/wiki/Psychoacoustics - The brain is fascinating, and does cool stuff with sound. SOME of those things are simple comparisons, some are extrapolation of data from assumed incomplete sets.

    https://openstax.org/books/physics/pages/13-3-wave-interaction-superposition-and-interference - Sound is a pressure wave, and as such will behave like a wave in a fluid medium (air is a fluid, albeit very low density)

    https://en.wikipedia.org/wiki/Brainwave_entrainment - The "etymology" section reveals why this is pseudoscience. Remember, pseudoscience just means the scientific method wasn't followed, and therefore it can't be respected as science. This doesn't mean its bullshit, or that its wrong, just that the field is tainted because it was not borne of science but of vibes. Literal vibes in this case.

    Anyway that's all I have on the subject for now. I looked into the stuff years ago after experimenting with it for so long and not seeing results.

    If you read through all of those articles, especially the one on wave interaction, I think you'll figure out for yourself where they're sourcing those 1hz tones and whatnot (hint, they aren't) , and why you may even be able to percieve them despite being far below the range of hearing.

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  • [–] [S] 0 points 11 months ago

    I mean, I think that misses the bigger picture of entrainment where whether you hear an inbetween thing or not, if you have a sequence of tones moving in a particular direction (either ascending or descending), it can help either stimulate or relax

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