- Hi, I just joined. It's a relief to find other people who are
experiencing the same thing as me, though I'm sorry that you are
afflicted with the
I live on the east coast Australia and I heard the hum first in 2002
for five weeks in
June/July (lucky me only five weeks) then not again till end of
July this year and it's
Here's an interesting news story on the earth's hum by Japanese
on Sept 29th 2004. See weblinks below. Sorry if this is already
here somewhere I
haven't read all the posts yet. They suggest that it comes from
movement of ocean
currents and that's why it is noisier in the winter months of
each hemisphere. Until
the last few weeks it did seem to have a distinct directionality
which happened to be
where the sea is five kms away and it does seem to be louder on days
when the sea is
My neighbour has heard it during the daytime. She confirmed the
was the E and a few days later the F above (below - hard to
tell)middle C on the
piano. Same note as another poster mentioned.
I decided the sound was low frequency noise and probably beyond the
hearing, but it puzzled me that I could hear it as well as feel it as
a pressure in the
ears and a pressure/vibration in the chest. I knew from physiology
studies way back
that the threshold of pain/damage of a sound was about 128/132 dB and
threshold of tickle/sensation is somewhere about 116 dB. Therefore
if my reasoning
was correct, the LFN sometimes causes sensation/feeling and must be
116 dBs in volume which is pretty loud.
An acoustically knowledgeable friend said a hum below the threshold
of hearing, say
20 hz, would probably generate harmonics in the audible frequency
range and that
was probably what I was hearing.
I've been thinking maybe some sounds amplify the underlying hum.
neighbour's pool pump is on there's more pressure in the ears
and the hum is louder
but it's still there when the pump is off. We live in a developing
area with roadworks,
and new buildings going up within a few kms of the house.
The hum is louder inside than outside even when ambient noise outside
is low - I
know other people have said that and my neighbour can hear it
in our house but not
in theirs. I read that some houses tend to amplify sound depending
materials and shape of inner spaces.
I've wondered if older people are more likely to hear the hum
because LFN is
conducted by the bones as fluctuations in atmospheric pressure rather
acoustically through the ear? The bones of older people may be less
therefore more conductive? I seem to remember some hearing aids for
are via bone conductivity.
The reports above tentatively suggest that it is due to natural
causes but I don't think
that can be the whole of the story. Subjectively it doesn't
sound at all `natural'. And
the sea does.
Pardon the length of this and it's a bit disjointed but it is
good to get it off my chest.
- Lidia,The type of internet we have here as well as throughout the majority of the USA is DSL Digital Subscriber Lines and/or cable modem access.. Our internet here is handled through the phone lines which in my area is fiber optic, though in the majority of the rural areas and non converted areas are still on low voltage copper wires which also carry our phone service. The copper wires nave not been changed out in the majority of the areas in the USA that are not highly populated metropolitan centers.International Broadband Electric Communications or IBECIBEC, Inc. is a full-service provider of broadband over power line Internet access products, solutions and services, electric utility SmartGrid communication and integration solutions, and powerline-based security systems. Focused on meeting the broadband needs of rural and underserved America - See more at: http://www.mcpressonline.com/cio-news/trends/ibm-and-ibec-initiate-broadband-access-to-200000-rural-americans.html#sthash.c4l6UVyY.dpufMy home is not in a rural area at all so this didn't apply to me at any point.
The following other BPL deployments in the US are dismantled as of May 2008:
Location Electric provider Equipment Service provider Reference (if not ) AL, Hoover (and other cities) Southern Company Various AZ, Cottonwood Arizona Power Systems (APS) Mitsubishi CA, Menlo Park Pacific Gas and Electric (PG&E) Main.net CA, Rosemead Southern California Edison (SCE) Current Technologies CA, San Diego San Diego Gas and Electric (SDG&E) Various CT, Shelton United Illuminating Amperion FL, Graceville West Florida Electric Cooperative Ascom FL, Miami Florida Power and Light Amperion and Main.net GA, Douglasville Greystone Power Mitsubishi GA, Young Harris The Sphigler Group Main.net HI, Honolulu Honolulu Electric Company Current Technologies IA, Cedar Rapids Alliant Energy Amperion ID, Boise IDACorp Various IN, Liberty Whitewater RMEMC Corinex MD, Hughesville Southern Maryland Electric Company Current Technologies MD, Potomac PEPCO Current Technologies MN, Rochester Rochester Public Utilities Main.net MO, Lees Summit Aquila Amperion NC, Raleigh Progress Energy Amperion OH, Cincinnati Duke Energy Current Technologies NY, Penn Yan Penn Yan Power and Light Amperion PA, Allentown Pennsylvania Power and Light Main.net and Amperion TN, Fayetteville Fayetteville Public Utilities Grid Stream TX, Dallas Oncor Electric Delivery Company Current TX, Austin Austin Electric Energy Corinex TX, Flatonia Broadband Horizons Unknown TX, Weimar Fayette Electric Cooperative PowerWan VA, Roanoke American Electric Power Mitsubishi WA, Wenatchee Heights, Chelan County PUD GridstreamHere is a link to a govt web site where you can see if you have BPL in your area or not by typing in your zip code.My zip code is 46311 so Lidia you'll have to put it in yourself so you can see it there. We do not have any access to BPL here and never have.The US has fallen behind Japan, the EU and South Korea in power grid technology, and has made it a national priority to improve its energy demand and supply management.More generally, as of December 2012, only about 65 percent of Americans had broadband access. The United States ranks 16th in the world, with South Korea at 95 percent and Singapore at 88 percent. Genachowski said over 20 countries had plans for broadband access, and that the lack of access in rural and low-income areas in the United States resulted in "leaving millions behind".By 2020, the goal was for 100 million households to have access to 100 Mbit/s service. 200 million people had broadband in 2009 (nationwide, the average connection speed was 3.9 Mbit/s), up from 8 million in 2000. But 14 million have no access whatsoever to broadband.Power-line Internet has developed faster in Europe than in the U.S. due to a historical difference in power system design philosophies. Data signals cannot pass through the step-down transformers used and so a repeater must be installed on each transformer. In the U.S. a transformer serves a small cluster of from one to a few houses. In Europe, it is more common for a somewhat larger transformer to service larger clusters of from 10 to 100 houses. Thus a typical U.S. city requires an order of magnitude more repeaters than in a comparable European city.Wireless Internet Service Provider (WISPs) are rapidly becoming a popular broadband option for rural areas. The technology's line-of-sight requirements may hamper connectivity in some areas with hilly and heavily foliated terrain. However, the Tegola project, a successful pilot in remote Scotland, demonstrates that wireless can be a viable optionLAST but not least is this link to a fantastic web site that dices out all of the forms of broadband access in the USA in the form of maps! I LOVE THIS ONE! It should help many in the group here in the USA!I hope Amanda and Glen snarf this one up and utilize it somehow! YAY!Blessings to all,Suzie
From: "lidia1313@... [humforum]" <firstname.lastname@example.org>
Sent: Saturday, January 24, 2015 5:23 PM
Subject: Re: HUM_FORUM: real time reporting?
Just being curious about your situation in Indiana, can you tell us which kind of Internet is being deployed in this area (if not BPL)?
Please can you remind me exactly when the Hum has become quiet in your area? Nearly 2 years ago?
The AARL website states that the main provider of BPL in Indiana, IBEC, has announced a shutdown somewhere at the end of January 2012... There must be remaining other BPL providers but not as big as IBEC used to be...