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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 9 months ago* (last edited 9 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 โšก๏ธ

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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[โ€“] 16 points 9 months ago (2 children)

Human hearing range is 20hz to 20kHz. That you can hear it doesnt mean that you can hear "0.33hz", more likely that its not actually that frequency.

I can hear that video, but using a tone generator, I can only hear clicks and pops from my phones speakers. So it's probably lying about its frequency.

https://www.szynalski.com/tone-generator/

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  • [โ€“] 2 points 9 months ago* (1 child)

    Ohhh now that one is interesting. I actually can hear it set to 1hz, but its not 1hz that I am hearing. Rather a higher pitched whine that cycles at 1hz. Similar happens for other very low frequencies and changes the frequency of the whine. I presume it is my speakers struggling with playing very low frequencies.

    Along with adjusting volume, every low frequency can be heard but it moves from hearing an actual low frequency to hearing the speakers movements and then really low it whines.

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  • [โ€“] 2 points 9 months ago (1 child)

    Are you perhaps hearing a 50/60hz signal from your electrical grid? If its higher, could possibly be frequency from your processor (or some other internal device) clock?

    Those frequencies are well outside the usual working range of most amps and speakers, so its not surprising they dont work very well.

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