Schumann Resonator

Hmm well if the design intent is to produce a certain frequency but device cannot do that cleanly , then one would hope the noise or distortion it introduces in addition were randomized.

IS that what these devices claim or are we just speculating? I have no clue.

Who makes these things? Crosley?

Just kidding....testing maghisters sense of humor today.....

In nature, from what I read, it sounds like echoes of the Shumann resonance frequency would be somewhat randomized, like echoes one hears of thunder after a strike.

When our kids were little, we ran white noise generators at night to help them sleep better. No resonance but random generated audible white noise (like dither). Worked like a charm! Those devices have been around for quite a while.

Seems like a suitable sound meter that was sensitive in the Schumann frequency range could help put a lot of questions to rest.  If its there, it can be measured for sure.

I never believe that a 10 bucks device will stay at 7,83 hertz...

It is precisely why these cheap device work better perhaps than very costly one...

I bet that their range vary between someting like 10 hertz and 4 hertz around their alleged 7,83 hertz...

At this price is Chinese designer meticulously verify the frequency 7,83 hertz ?.... Asking the question is answering it.... 😊

It is the reason why the dithering effect work....Introducing a random variation around this frequency....

People who sells this S.G. sell the "mythical" non existant exact 7,83 hertz frequency....It is an oscillating average in reality...

Because the earth resonance vary around this frequency and is not always exactly that one and more than that the shumann resonance is a set of peaks around it and his harmonics....Not the single perfect 7,83 hertz....

In nature, from what I read, it sounds like echoes of the Shumann resonance frequency would be somewhat randomized, like echoes one hears of thunder after a strike.

When our kids were little, we ran white noise generators at night to help them sleep better. No resonance but random generated audible white noise (like dither). Worked like a charm! Those devices have been around for quite a while.

It seems we understand each other ....

My best to you....

Remember that i am not an english speaker, then my understanding of subtle humor is sometimes lost in translation...I must admit that i am a bit too  reactive also and not alway subtle....

😊😁

I’ll buy that with the reservation that these devices also surely are not sophisticated enough to generate controlled or specifically designed dither to achieve the desired effect.   That generally would require digital processing, not analog.  Whatever is generated off frequency happens by other means...random or not....

The devil is in the details. Resonance frequencies never exist alone or at one single frequency only.

Maybe this is a case where a cheap design in fact achieves the desired purpose.

If you actually start hearing something, THEN there might be a real problem......

Anyway interesting discussion. No hatred involved.

Maybe this is a case where a cheap design in fact achieves the desired purpose.  

You are RIGHT on the spot....

 Thanks...

My deepest respect for your help.....

My only other reservation about these devices is that usually a lot of power is required to produce SPLs at a low frequency.   Think powered subwoofer that goes down to 20hz, 10-15 max.   

How do these little inexpensive devices achieve that?   Class D amplification? 

Inquiring minds want to know.   Don't know how they pull that off unless very low SPLs are sufficient to achieve the desired effect.   Or placebo effect?   Both possible.   I'll leave it to others to figure out which and let me know.