When I say spend a week away, I mean to completely and utterly avoid the tower and area during this time. Just like medicine it takes awhile for the body to recover from a long term annoyance. It may be that after a short time away it'll disappear, then when she returns it'll take a few days to reappear, which could indicate other environmental factors (chemicals, fumes, etc. Treat it as a holiday. -Adam On 9/6/06, M. Adam Davis wrote: > You might try using a piezo microphone to see if her head is vibrating > in response to some external noise. Have her bite hard in it and not > move, record through the human hearing range, and then play it back to > her loudly while running it through a software filter to see if you > can pick out the frequency. > > If earplugs don't work, and her head isn't vibrating, then I don't see > a way the cilia in the ear are moving, meaning that there's no audio > component, even though she percieves it as an audio annoyance. > > Since it's localized to the tower, then I'd suuggest having her spend > a week at a friend's house away from the tower and see if it occurs at > other locations/times. If not, then probably the best option is to > move - it's going to take longer and be more aggravating to get the > tower people to change than it's worth. > > If she does have the problem at other times/places, then it becomes > interestingly more complex. > > -Adam > > On 9/6/06, Jinx wrote: > > > ^If it is high pitched then it can be attenuated by a good set > > > of ear protection. Preferably a combination of expanding ear > > > plugs and some wrap around headgear > > > > She has tried earplugs + earmuffs, no joy > > > > Also, most people will find that you get used to a constant noise. She's > > tried music and white noise (one of those "subliminal message" *** > > tapes with the waves and the seagulls") to try and block it out > > > > Unfortunately that wasn't a complete success because the only tape > > she could find was a New Agey one with a choir and other > > distractions. I could make a white noise CD or mp3 though, that > > hadn't occurred to me until now > > > > > How far away from the antenna must she get to lose the audio ? > > > > Good question. Don't know. Poor answer > > > > Having another chat with her tomorrow > > > > *** not the "You will hear an irritating and inescapable tone" one ;-) > > > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist