Hi Frank some form of sound density pressure wave forms seem to be a running theme
What kind of microphone did you use? Does the software give any idea what band of the spectrum the frequency is in??? Does the software give any idea if it is a low frequency MHz of a characteristic??? Interesting your description if you walk in the direction of the Hum it disappears Dee No Calif On Jun 14, 2:03 am, Frank <[email protected]> wrote: > I am currently investigating my hum in the southwest of England. > I can confirm that this one is an acoustic pressure wave (sound) and > not something esoteric. > I have been able to detect it using a microphone and view it using a > PC with audio spectrum analyser software. > > Its characteristics are: > It is louder outside the house than inside. > It is louder at the front of the house. > My Wife can also hear it. > It is constant level but switches off abruptly as I have heard several > times. > > Hearing is not so good at direction at such frequencies but if I walk > in the the direction that the hum "seems" to be coming from, it > disappears. > The level is highest just outside the front of my house! > There is no industry within the immediate area so its source still > remains a mystery. > > Frank > > On May 5, 12:23 am, Jim <[email protected]> wrote: > > > > > Steve, > > I live in East Aurora,NY > > > Jim > > > On May 4, 9:30 am, Steve K <[email protected]> wrote: > > > > Sorry to hear you have had it so long. we started hearing it in > > > western CT around Sept 2009. Our proofing looks top be changes in > > > natural gas distribution operations in our case. The theory is this > > > is a national problem, having been occurring for years some places and > > > accelerating in the last 4 yers to other areas. Where do you hear teh > > > HUM- town and stte is good enough > > > > Steve > > > > On May 4, 8:11 am, Jim <[email protected]> wrote: > > > > > My name is Jim and I am 64 years old. I have been hearing a low > > > > humming for 20 years now. I can't say that it is annoying as I am > > > > quite used to it by now. The best way to describe it is: a > > > > soft,low,hum that sounds like a hot air forced furnace when it is > > > > running or a distant train going down the tracks. Oddly enough, when I > > > > really notice the hum is when it turns off. Being on so often, the > > > > quiet of not hearing the hum is unusual. I could never hear the hum go > > > > on but I sometimes hear it switch itself off during the night while > > > > laying in bed. My wife thinks I'm nuts.... > > > > > Jim- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hum-sufferers?hl=en.
