Well, I found another source of the Hum. It is the tenant downstairs, he needs a new electric fan for his toilet. This house was built in 1973. Switching off...
10135
dianeantone
May 1, 2008 3:55 pm
Greetings to all! I'm new to this forum and am relieved to know I am not going crazy. For about three years I have been experiencing the hum in my stone-built,...
10136
skeptichearer
May 1, 2008 9:44 pm
A SMALL FLUTE PLAYING AT A GREAT DISTANCE SOMETHING LIKE A MORSE CODE. This is the description of the sound I received today by an Italian guy who...
10137
skeptichearer
May 1, 2008 10:23 pm
Now I'm 59. When I was a child, I heard from elderlies (now dead people) two legends. 1) Sometimes it was hearable a weak distant lament coming from the lands....
10138
coer_12
May 3, 2008 11:03 am
The usual disclaimer: this may or may not be hum related. Have any of you checked the PSI of your waterline? You may find that it's high. If so, please report....
10139
Leah Ryan
leahryan@...
May 3, 2008 7:00 pm
Each year in the spring I start getting mosquitoes, moths, and very small flies in my top-floor apartment. The problem gets very acute during the summers. So...
10140
Ron and Maureen Lefeb...
rlefebvr2001
May 3, 2008 8:03 pm
How would I check that? (and what does PSI stand for?) Thanks, Maureen in BC...
10141
John Locke
jlocke3000
May 4, 2008 1:04 am
Thank you Antonio for all of your analytical insight. Sometimes I hear more than one tone, like another slightly higher tone is modulating the lower tone. This...
10142
coer_12
May 4, 2008 9:52 pm
... Maureen, A plumber, or someone familiar with plumbing, can do that. I'm not sure if the local water Co. will but you could ask. Coer...
10143
prwaphils
May 5, 2008 5:15 am
... Hi Maureen, PSI = I believe pounds per square inch. Not sure if this applies to you in BC, but I bought a water gauge at the hardware store, and per the...
10144
Tom Becker
b19063
May 5, 2008 5:31 pm
... How might utility water pressure produce the hum? What lead you to suspect that? Tom Cape Coral...
10145
coer_12
May 6, 2008 12:46 am
... Nice that someone found a source. Yeah, not so lucky here, either. The water pressure angle is more about mitigating potential sources of annoyance than...
10146
joe breskin
dinosaursongs
May 6, 2008 2:17 pm
If you want to explore this angle, it's easy. Drop a hydrophone into the tank behind your toilet and record it overnight. Cheap hydrophones are VERY cheap -...
10147
cunningc42
May 6, 2008 4:21 pm
Folks I live in Pittsburgh, Pa. The hum started for me almost exactly 4 years ago. It seems to take a summer break--ending somewhere around the beginning of...
10148
skeptichearer
May 6, 2008 5:10 pm
Hi, do you hear a low tone only (distant diesel engine) or higher tones too? Is your tone continuous, or even pulsating (like morse code)? Thanks, Antonio,...
10149
ewraven1@...
ewraven1
May 6, 2008 6:45 pm
To: humforum@yahoogroups.com From: "skeptichearer" <skeptichearer@...> Date sent: Tue, 06 May 2008 17:10:42 -0000 Subject:...
10150
skeptichearer
May 6, 2008 7:26 pm
Please excuse me, Eleonor, I don't usually check the group-related mailbox (I selected not to have the group messages reflected there). Indeed your message is...
10151
mack_colin
May 13, 2008 12:55 am
... For about three years....... Hi Dianeantone I am sorry to say but you definately have the classic HUM. By saying you hear it indoors and not outdoors, the...
10152
Tom Becker
b19063
May 13, 2008 2:57 am
I've found that - if I position myself in such a place in my home where I can the hum and also simultaneously hear a similar-intensity spoken voice from...
10153
skeptichearer
May 13, 2008 1:54 pm
Dear Tom, thanks for introducing the concept of Automatic Gain Control in the hum perception mechanism. An AGC-like mechanism could actually be at work in our...
10154
Tom Becker
b19063
May 13, 2008 4:23 pm
... higher frequency... Yes. The accelerometers are not terribly sensitive (~15mg) but they can respond to 240Hz and below, fast enough, I suspect. I'll try...
10155
Diane Antone
dianeantone
May 13, 2008 5:15 pm
Hi Colin, Thanks for your reply to my post. Good to know I'm not alone! As to ears, I don't think it's either one particularly and it almost feels like it...
10156
Rossen
brumnauka
May 13, 2008 6:01 pm
Tom, see message number 4179 in this forum. Rossen...
10157
skeptichearer
May 13, 2008 6:34 pm
... [] ... they can ... see ... Please let us know. Antonio, South Italy...
10158
ewraven1@...
ewraven1
May 13, 2008 6:47 pm
To: humforum@yahoogroups.com From: "Tom Becker" <gtbecker@...> Date sent: Tue, 13 May 2008 01:49:11 -0000 Subject:...
10159
skeptichearer
May 13, 2008 7:06 pm
... [] ... they can ... see ... Tom, a rough calculation shows that the sensitivity of your accelerometers is too far from that needed for such a test. You...
10160
Tom Becker
b19063
May 13, 2008 9:57 pm
... Thanks, Rossen. Where do you describe how you measured otoacoustic emissions from your own ear? Were you able to record that sound? Tom Cape Coral...
10161
Tom Becker
b19063
May 13, 2008 9:58 pm
... noise) is in the order of 1 microGal or less, that is at least 6 orders... Interesting. What bandpass? Gravity is largely treated as if it is essentially...
10162
mack_colin
May 14, 2008 12:46 am
... wrote:> Hi Colin, ... ears, > Why do you think it starts when we become middle-aged? That makes it sound rather as if it is suspected to be a form of ...
10163
Tom Becker
b19063
May 14, 2008 2:30 am
... Eleanor, the accelerometers are actually capacitive devices, similar to many modern MEMS sensors. This is one, an Analog Devices ADXL203 that can resolve...
