Is it true that the infrasonic frequency of 19kHz is responsible for ghost sightings?

Question

please check this link:

http://en.wikipedia.org/wiki/Infrasonic

for more detailed info, check these two short articles (PDF)

http://www.mediafire.com/?vxmizmddxjl

http://www.mediafire.com/?iycydzznxmk

I agree 19KHz is not infrasound but rather ultra as they said that human ability to hear is almost in the range of 16-20KHz, (young people are able to hear 20KHz maybe), but I could not understand how it was included in infrasound article.

Answer 1

I have seen no evidence to suggest this might be the case.  Have you?

Answer 2

not sure about that specific frequency but i watched something on discovery years ago about strange sightings in a science lab at some university in america.

it turned out that they'd recently had a new air-con system installed and the fans (very large fans) were producing a sonic pulse that could slightly distort your eyeball if you stood in certain places around the lab.

after switching the fans off there were no more reports of the sightings, back on - more sightings.

so yes, air pressure exists and ghosts don't :)

Answer 3

no, where would you get that idea?

19kHz is audible to most younger people.

Answer 4

19 kHz is not infrasonic it's high audible

Answer 5

I am not aware of anything in the literature regarding inducing hallucination via sound waves, and it doesn't sound plausible to me, so I doubt it.

Answer 6

Having been a Paranormal Examiner for 28 years now, I've heard this theory put forth before.

Infrasonic, and ultrasonic for that matter are not solely responsible for sightings of alleged Paranormal Activity.  Many other factors come into play, such as electromagnetic radiation.  Also, hypersensitivity to electromagnetic fields and frequency waves also contribute to persons so inclined to see "ghosts".

Many people see "ghosts" because their imagination lets them see the "ghost". We, as human beings, have a tendency to want to quantify any and all Unknown activity...so calling it a "ghost" is one way of doing that.  About 80% of the time.....it's just a good "story".

Answer 7

Well, I read the Wiki article and it's 19 HERTZ, NOT KILOHERTZ so there lies the confusion. But yes, it is infrasound. While it may explain some sightings, it does not explain all. What the scientist experienced is only a couple of symptoms of hauntings, so while it is possible to explain away anxiety and catching glimpses with your eyes because of the sound (which are really minor symptoms of hauntings anyways), it doesn't explain full-bodied apparitions, cold spots, EVPs, audible voices, poltergeist activity, etc.