Interesting work Luca.. I have to be honest and say it doesn't sound like my hum. Quite a low level to get through my PC speakers maybe didn't help. Did you get a harmonic frequency analysis at the same time- ie:spectral spot freq peaks? What I did pick up was a wider band, less pointed steady hum, than mine. I know that your measuring gear could be getting part of the story, though- Hum is notoriously difficult to nail. ie: It could be co-incidental hum related noise at your location. The big ?? is- was human hum pick-up detected at the same time and with similar modulation? Regards Trev
On Friday, 7 June 2013 00:48:10 UTC+1, Luca Rizzardi wrote: > Hello. > I'm Luca, a sound engineer from Italy. > I am not a hummer, but I spent the last 9 months studying The Hum, with > the assistance of my university advisor and two hummers of the area. > I studied a lot of the theories and publications about the phenomenon (in > particular those of Chris Barnes and Tom Moir), analyzed testimonies and > data from different forums like this and The World Hum Map and Database, > studied the behavior of the phenomenon and formulated my hypothesis. > Finally I have successfully recorded The Hum. > > On this link <http://www.youtube.com/watch?v=MhNCdzA6Fmc> you can listen > to my recording and see the spectrogram. > Frequency of the noise is around 30 Hz. > > This is my > thesis<http://www.scribd.com/doc/144697878/Luca-Rizzardi-Conservatorio-C-pollini-Padova-The-Hum>, > > unfortunately in Italian language. > I would be happy to exchange some opinions with you. > > Luca Rizzardi > > > > > -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
