hearing

OK, the above is something that hi-fi bods come out with regularly, as a reason for buying expensive hi-fi or keeping their MP3 files at extremely high sampling rates. But I don't see how it can be true. :confused: Assuming a high frequency tone affects a lower one, the resulting sound can...

MIT researchers have discovered that the inner ear uses two (not one) kinds of wave motions to hear. This will probably have implications in future designs of cochlear implants and hearing aids. http://www.sciencedaily.com/releases/2007/10/071011140215.htm

Has their been any cases where someone hearing can increase. If anybody has seen Heroes t.v. program, on one episode a woman could hear sound miles away. Or say if you could hear a pin drop in another room, when a normal person would hear nothing. Would this be classed as paranormal and could...