I realize that. My tone is constant in pitch. I had a signal generator producing a tone, years ago when it first started, and I worked on electronic organs. I recollect, that I could zero beat it, at a frequency, about A5. John M. Ross Windsor, Nova Scotia, Canada jrpiano at win.eastlink.ca ----- Original Message ----- From: "Mark Purney" <mark.purney at mesapiano.com> To: "Pianotech List" <pianotech at ptg.org> Sent: Thursday, July 05, 2007 8:07 PM Subject: Re: ear buzz update > Such a device would only work if we had a way for it to "hear" the > tinnitus noise exactly as you are hearing it. This would be the only way > to produce a cancellation signal that is perfectly matched in frequency, > but out of phase with, the original noise. Otherwise, you would get > phasing or beats, and/or end up doubling the noise. > > John Ross wrote: >> *How about a noise cancelling device, that is manually controlled.* >> *I am lucky enough, that with my tinnitus, I just 'tune it out'.* >> *Brings to mind the way someone doesn't listen to ones mate, but just >> says ugh, ugh.* >> *Selective hearing, does work, with practise.* >> *We train our ears, to listen for certain partials, so the opposite >> should be possible.* > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. >
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