[TriLUG] OT: the optimum location for inner track/cylinder on rotating media?

[John Mitchell]

On Wed, Aug 12, 2009 at 3:59 PM, Joseph Mack NA3T <jmack at wm7d.net> wrote:

> On Wed, 12 Aug 2009, John Mitchell wrote:
>
>  BTW,  outer tracks on Vinyl have higher dynamic range!
>>
>
> do you know why ?
>
>
The higher rotational speed on the outer section:

>From Wikipedia - http://en.wikipedia.org/wiki/Gramophone_record

"Fidelity steadily dropped as the recording progressed; there was more vinyl
per second available for fine reproduction of high frequencies at the
large-diameter beginning of the music groove than on the smaller diameter
inner grooves closer to the center. The beginning of the music groove on an
LP gave 510 mm of vinyl per second traveling past the stylus while the
ending of the music groove gave 200–210 mm of vinyl per second—less than
half the linear resolution."

john mitchell