On Mon, Jan 26, 2004 at 09:40:03AM +0000, Steve Harris wrote: > This is not quite correct. While humans can not hear continuous tones over > 20-odd kHz that is not the whole story, the frequency reproduction also > limits the minimum transient rise time, which is detected by a different > part of the ear (IIRC, IANABiologist and my psychoacoustics textbook is at > work). Which psychoacoustics textbook is it that you have at work? -Eric Rz.