...........here's another post from Feb 2008...........
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm also one of the unlucky ones who does detect the Hertford version of the hum and it does sound very much like the Mercury representation. I've always assumed it to be electrical in source, since there are definate interference patterns in the waveform, suggesting a multiple source all at the same frequency. It sounds roughly similar to the noise emitted by the large transformers in sub stations, but with an added rotational phased effect. It can be clearly audible in one spot and gone if I move a metre in any direction. Earplugs make it worse, so I don't think it's sound in the normal sense, though background noise does cover it. I've found it's missing altogether at coastal locations. The voices are a nuisance too.. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *************** It can be clearly audible in one spot and gone if I move a metre in any direction. *************** .......a good description of how it creates standing waves which then disappear and reappear elsewhere............ --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
