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Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: Jacques Chitte who wrote (34733)	8/11/1999 7:33:00 PM
From: bob mackey	Respond to of 71178

Indeed...experiments show that people can only hear pure tones up to about 20 kHz. Yet, a difference in arrival times between the two ears of 1 microsecond is readily perceived. That implies that good imaging requires frequency components in the megahertz range that need to be delivered acoustically. Not an easy problem.... Be glad we're not owls or bats. Then we'd NEED those megahertz signals to find our dinner. I guess the owls should be glad that we don't have stereos that can accurately reproduce the sound of a mouse walking across the floor.