Hi Rob. Our group is small and though we dig deep we have limited resources and time. Much 'own research' is the order of progress usually- with as much mutual support as we can muster! There are many historical reports of Hums in Hawaii and the geology figures (as volcanic) too. Do a search and read-up, It's what it takes for different sites and Hum presentations. Your Hum seems a bit high in frequency compared to many but if it is repeating like a random two tone siren, then the pattern is right. If there are many getting the same there- then you can compare notes (in depth that is ) and come to a conclusion and pursue the local Public Health people to investigate. If you can record anything privately that is always worth trying- but success will be evasive, if it is Hummmmm. It's tricky by nature! Use this free Spectrogram software at http://www.visualizationsoftware.com/gram.html to analyse your PC microphone sound input. and see any standing sound patterns that match-, especially at night. See O-cct plot on Files here- from last year- for comparison . A surprising amount of LF noise is around.
On Apr 13, 2:05 am, Robert Domingos <[email protected]> wrote: > Our hum started a few weeks ago, going 24-7, coming down off the > mountain (BIG ISLAND of HAWAII). It is a dual tone random oscillation > between A-440 and the E below it. It is making us crazy. > > Any other reports from the Big Island?? > > mingo --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
