Home » Uncategorized » Let’s make a list of the number of times the Hum has been “solved”

Let’s make a list of the number of times the Hum has been “solved”

Follow World Hum Map and Database Project on WordPress.com
Follow World Hum Map and Database Project on WordPress.com

Solved! It’s mating fish: http://www.independent.co.uk/environment/nature/mysterious-hum-keeping-people-up-all-night-could-be-mating-fish-8900747.html

Solved! Another wave explanation from 2009: http://www.wired.com/2009/08/hummingearth/

Solved! It’s autoacoustic emissions: http://connection.ebscohost.com/c/articles/95335020/hum-otoacoustic-emissions-may-arise-out-same-mechanisms

Solved! It’s railways:http://www.stalbansreview.co.uk/news/10471324.Strange_noise_in_Sopwell_may_have_been_caused_by_rail_workers/

And that took about 15 minutes to do.

The work continues.


  1. jimvandamme says:

    Glen, do you have a copy of the Frosch otoacoustic report that I could, um, “borrow”? vandammes@gmail.com

  2. jimvandamme says:

    While I’m making silly requests, do you have a diagram of your RF test equipment setup that you will use, or a description of the procedure you will use to measure RF fields inside and outside?

    • I’m looking at a VLF loop antenna along the lines of: http://www.powerfulsecurity.com/pdfs/Loop%20Glossy%2015%20Jan%2011.pdf or possibly something like: https://www.lfengineering.com/products.cfm

      I’m using a small VLF receiver I picked up from Italy
      Any thoughts?

      • jimvandamme says:

        If you want to do a quantitative measurement of actual field strength, you need a calibrated antenna and a calibrated receiver. That is, the antenna has to be tested on a range and supplied with a chart of power (or voltage) out of the coax versus incident field. Then if you have a receiver which converts the input power to a measurement (e.g., DC level you can put a voltmeter or oscilloscope on) and is calibrated (it will be highly nonlinear due to compression in the receive chain) you can figure out exactly what incident RF power you have.

        If you don’t have a calibrated antenna but a calibrated receiver, you can at least figure out the effectiveness of the shielding by taking the antenna out of the chamber and adding in an RF attenuator on the antenna output until the receive power indication on the outside using the attenuator equals the power received inside without the attenuator. The shielding effectiveness is then equal to the attenuator value. At these frequencies, you can make attenuators out of simple resistor networks; design details are on the internet.

        The TS antenna looks pretty nice (don’t know if the price is nice). You’ll need the built in amp to get above the noise level. I’ve built active antennas that work nicely from 100 MHz down below 1 MHz; in fact I had to make a filter to cut off the AM broadcast band. I’ve built loops out of copper pipe but only did qualitative measurements (didn’t calibrate). If you buy one good antenna with a pedigree you can make your own and use the calibrated one as a standard and thus get the home brew one calibrated.

  3. jimvandamme says:

    Tinnitus mapped inside a dude’s brain

  4. SGVH says:

    Very interesting BBC link re tinnitus mapping. Thanks for that, JVD. They say tinnitus stems from loud noise harming ear hair follicles. I don’t know about that because:

    –I’ve had tinnitus since being a teenager (1960’s) & was told by an MD then it was due to taking too many aspirin (cramps, etc.)

    –Since then I wondered if it was due to aspirin/leaky gut connection; &/or aspirin/blood-thinning connection. I never worked around “loud noise,” nor was ever much of a music person, so I don’t see how noise could have caused tinnitus in those years.

    –The tinnitus continued another 20+ years until I did a 21-day water-only fast in late 1980’s. That got rid of the tinnitus & all other ailments.

    –Tinnitus stayed GONE for the next 16 years until Fall 2004 which, at the time, I guessed was due to atmospheric manipulations during/after the 3-Freaky-(Geo-Engineered?) Hurricanes that Summer/Fall. Now I think more likely neighbors installed Wifi or that apt. complex got smart meters, etc.

    –Deep Low Droning Rumbling “Concentrated” Hum (which sometimes is a higher Faster-Drumming Hum) did not enter the picture for another 10 years & at a different residence, in 2014, so now I have both Tinnitus & Hum. Boo! :-/ (Yes, another long water-fast is long overdue; requires lots of time & $$, so waiting for opportunity).

    –In the meantime & the reason for writing all that is this other article I saw tonight besides your BBC one. The Hum (ear only problem) & ES (Electro-Sensitivity, whole body problem) could possibly be related, health-wise & RF-pollution-wise. If so, maybe we all simply need “Natural Brain Firewall Activation” > fascinating info here:

    4/25/15: “New Treatment For Electrical Sensitivity”:
    Natural Brain Firewall Activation
    It’s a gentle, two stage, hands-on procedure that initially works on the cranial bones to coordinate movement and create more space for the brain. This is followed by a fine tuning of the atlas with the occipital bone and the other cranial bones. Both stages utilize key acupuncture points.

    Dr. LaVelle believes that throughout a person’s life there is a minute expansion and contraction of the skull that possibly acts as a frequency generator or generator of life energy. He believes that his technique works by stimulating these higher frequencies (the brain’s natural firewall), which can then harmonize and neutralize adverse EMF pollution.

    Hmm! Whattayathink? 😉 Lloyd, at above site, will be interviewing Dr. LaVelle (Calif.) in early May. See above link to listen in.

    • jimvandamme says:

      “… stimulating these higher frequencies (the brain’s natural firewall), which can then harmonize and neutralize adverse EMF pollution…”

      This makes no sense to an RF engineer (me).

  5. SGVH says:

    PS: Wheels are cranking: Since Hum is mostly heard by the “more mature” age group, maybe our skulls have shrunk with age (“contracted” & got stuck there), causing the brain to be “cramped” in there with no excess “space” to generate higher protective frequencies which mask the EMF (& possibly the Hum as well) – ??

  6. Randy in Tucson AZ says:

    I spent quite a bit of time on your website tonight after hearing about it on the somewhat recent SYSK podcast. I am not a hearer, but a question came to my mind repeatedly that I did not hear answered on the podcast, nor did I find it addressed on your website. The question is this. When hearer 1 travels to another location where The Hum is reported by hearer 2, can hearer 1 hear it? And more specifically assuming yes, if the two compare the frequency matched with a tone generator, do the frequencies they hear match? If the answer helps in the understanding of how an individual’s makeup determines the tone they hear, it might also give further clues to the source. If I missed an article or blog post related to this (likely) I’d be very interested. Thanks.

    • An excellent question, and one that I’ve been pursuing. In my own case, I perceive the Hum at a dominant frequency of about 56.5 Hz, which has remained stable over time. The interesting part is, whenever I have travelled and waited the typical three day period for the Hum to return, it is at the same frequency. To me that makes it most unlikely that what I hear is caused by a point source of acoustic energy. If you check the Hum Map you’ll see that in cases where people have reported their matched frequency and live in the same area, the frequencies are usually different.

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