We need access to a world-class acoustic anechoic chamber

Oh, did I mention: at night, in an isolated area?

One of the problems with Hum research is that the answer may have already been found, but has been lost in the mists of time and obscurity. That will never happen again, as long as the internet exists and I am involved.

We should be able to find out if the worldwide Hum is an acoustic source. We simply need to send volunteers into a very high quality anechoic chamber and let them listen. We need the facility to be in an isolated area, however, because of the possible interference of infrasound from highway traffic or industrial activity. The experiment must happen at night.

I know that Apple, Samsung, Google, most governments and major universities, and many private laboratories have them. Our problem is that we are, as the Brits might say, “skint”. We may need to fund thisĀ on our own dime, perhaps with the goodwill of others who have the equipment and resources.

Let’s regroup: we are going to solve this, but “many hands make lighter work”. If you are connected to a facility that has such a chamber, find out if they are willing to help us.


Preparing for the next major experiment…

I received an email recently reminding me that there is an important and simple experiment waiting to be replicated and confirmed. If the experiment is a success, then in my view this will be a major step forward.

There are sketchy anecdotal reports of people who have descended deep into limestone caves and successfully escaped the Hum. I may have the chance to test this more conclusively, with a group of regional volunteers. There is a famous old mine just north of Vancouver, now used for educational purposes. A few years ago, I entered into initial conversations about the mine being used as a crucial setting for an important scientific experiment. I drifted back toward finishing the Deming Box instead, but now I think it’s time to start getting ready to look in other directions. I’ll be reaching out to them again soon, and I hope the added weight of many serious and mainstream news articles will encourage their participation.

Later one night, a group of volunteers who hear the Hum would gather near the mine and, indoors with the mains electricity turned off, listen if they hear the Hum. Then we would descend to the deepest parts of the mine and again have the mains power shut down. (This is the part that I am going to have to work very hard to convince them of). Then we would listen again.

If the Hum were blocked, this would be a major discovery, and would at once point the research in specific directions.

I entered the VLF Radio Blocking Box: the results

I could still hear the Hum.

I entered the box at about 1:40 am last night and and soon as I lay down quietly inside it, the Hum was there, as loud as ever.

As a final step, I need to establish that the box does what it says it does (i.e. block essentially all VLF radio signals), and to have a physicist confirm my calculations regarding the radio skin depth of a 10 kHz radio wave for mild steel. If everything checks out, then this a serious piece of evidence against the VLF theory.

I’ll let you know if and when I’ll be shifting gears and moving on to the second hypothesis.

Al Jazeera is coming here

I’ll let you know now that I rejected the History Channel’s offer to fly me to Taos, New Mexico, as part of their Taos Hum “investigation”. No offence, but it seems that in an attempt to maintain viewership, some cable channels such as TLC and the History Channel have devolved into producing pap. The reason I turned down their offer is that I was afraid of squandering four years of hard work by participating in a ghostbusters-type circus.

Al Jazeera (English) is in a different league entirely. I view them as one of the most serious news agencies in the world. Granted, every news agency has political underpinnings and leanings, from Fox News to Znet, but in the scientific realm, I take Al Jazeera seriously enough that I am considering giving them exclusive footage of me testing the VLF blocking (Deming) Box. They are sending a small crew to BC within the next few weeks. I’ll keep you informed.

Some initial spectrograms of Zoom H4n recordings

In preparation for attempts to record the Hum using classic audio techniques using highly sensitive electret microphones, I made some night recordings using a Zoom H4n recorder, out of the box, while I learn to use the unit. I noticed something unusual. The two screenshots I’ve attached are from the well known and widely used Audacity software. The first recording was taken from the basement of the house, with the mains power on but no fans or motors running in the house. The bright (loud) spikes are me setting the recorder in place or moving it. The Hum, perceived by me at roughly 56.5 Hz, was very loud as I made the recording.


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The second recording was made from inside my car in the driveway (obviously with the ignition off and windows up). Notice the steady modulation in the lowest end of the audible range.

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Perhaps the most important result from this is that when I listen to the recordings, I cannot hear the Hum in them. Obviously I can’t conclude anything yet, but as I learn more and begin to master the technology, I will report on what I find.

If you are an audio expert – particularly one who can comment professionally on recording low frequency environmental sounds – feel free to post here or contact me at glen.macpherson@gmail.com

Bernie Hutchins

I always get around to things – sometimes later than I should. Bernie Hutchins has been making serious and rigorous contributions to this website for some time now. He has demonstrated broad scientific knowledge and sharp thinking. Here is a sample of his current work:

Well done, Bernie; we appreciate your efforts as we move inexorably toward the answer to the Worldwide Hum.

My interview with BBC Radio4 (Punt PI)