Still HUM Free.
Not so much as a vestige.
I realized that my post, addressing the issue of the airport, was one
avenue of approach. I will endeavor to tape the sound of the
interference to the FM Frequency of 453.250 MHz. I think you and others
will agree that there is an eerie similarity to what "we HUM Hearers"
commonly identify as The HUM.
Your reply may reinforce my assertion (I am not looking for support,
just trying to disseminate information to someone capable of making
sense of it), as I am also pondering an electromagnetic source of the
HUM (in my case) with the Airport offering the source of the
Being that the HUM is now not present in the country (where I first
started hearing it) and in the city (neither my wife or I are hearing
ANY of it), and there is no airport in the country, at least not within
line of sight, I do not offer this as the only cause of the HUM.
--- In email@example.com, Glenn Fisher <mgfisher@...> wrote:
> It is my view, after years experience, that "the Hum" cannot be
> audibly, but rather, is a perceived "sound" inside one's head. In fact
> not really a sound, but is perceived as one.
> Definition of the word "sound":
> "Vibrations transmitted through an elastic solid or a liquid or gas,
> frequencies in the approximate range of 20 to 20,000 hertz, capable of
> detected by human organs of hearing."
> Thus, "the Hum" is not a sound, since it is not waves of vibrations in
> I do not mean to say that it is psychological, but it is not really a
> "sound" in the sense that it can be detected using microphones etc. Or
> any other definition of the word.
> Most people with perfectly good hearing cannot "hear" or otherwise
> this phenomenon.
> My wife and I both hear it at the same time when its here, and we both
> when its gone. So clearly it is objectively perceived, and certainly
> coming from a foreign source.
> FYI, I do not live anywhere near an airport, and the hum does not
> with AM radio interference.
> I suspect it is some electromagnetic energy, which, when it hits our
> resonates in our ear canal, or with our auditory nerves, creating the
> perception of sound.
> My own theory is this can be exacerbated by the electrolytes inside
> brain fluid. We carry around metallic particles, minerals, etc ("hard
> water") in our brain fluid, which, depending on the mixture and
> concentration, can CONDUCT these electromagnetic waves, which, in
> stimulate our auditory nerves.
> I think this site is the best for all Hum related info: