"Joe Kesselman" wrote in message
...
Zed wrote:
But what is the "bandwidth" of the average human ear !!

Ask an audiologist. I presume this is well-established.

In the 50's and early 60's the range of human hearing was commonly quoted as
30 Hz to 15 KHz (or 30 cps to 15,000 cps to use the terminology of the day).
Some time in the late 60's to early 70's the range of 20 Hz to 20 KHz became
more common, maybe because it's easier to remember. Not that the
characteristics of the human ear changed, mind you. It's a rubber ruler no
matter how you look at it. I could probably hear 10 Hz it if was loud
enough, and I could probably hear 20 KHz if it was loud enough. It has more
to do with where they decide to draw the line, and of course, marketing.