Klarinet Archive - Posting 000654.txt from 1997/11

From: Roger Shilcock <roger.shilcock@-----.uk>
Subj: Re: the human ear
Date: Wed, 19 Nov 1997 13:00:59 -0500

Two things:
1) as a comment on this letter - surely this sort of sensitivity is not
relevant?
2) a question, from one knows less than he should about modern recording
technology - what happens when a CD is recorded? Is it the original
digital sampled data which goes on to the disk, or is the signal converted
to analog(ue) first and then redigitized?
I have a strong suspicion the second is true.
Roger Shilcock#

On Wed, 19 Nov 1997, James Pyne wrote:

> Date: Wed, 19 Nov 1997 08:11:20 -0500 (EST)
> From: James Pyne <jpyne@-----.edu>
> Reply-To: klarinet@-----.us
> To: Klarinet@-----.us
> Subject: the human ear
>
> The following quote is from <italic>Acoustical Measurements by Leo
> </italic>Beranek, a book published by the American Institute of
> Physics:
>
>
> "At the most favorable pitch an ordinary ear can detect sound pressures
> smaller than 10 to the minus 10th of normal atmospheric pressure. At
> this low sound pressure the eardrum moves less than 10 to the minus 9th
> cm, which is one hundred-thousandth of the wavelength of light or one
> tenth the diameter of the smallest atom."
>
>
> The human hearing mechanism is an incredibly sensitive device.
>
>
> JM Pyne
>
>
> James Pyne
>
> Clarinet Studio/Research Group
>
> School of Music
>
> The Ohio State University
>
> 1866 College Road
>
> Columbus, Ohio 43210
>
> pyne.1@-----.edu
>
> Tel: 614 292 8969
>
> Fax: 614 292 1102
>
>
>
>