re:Digital vs Analog

[P3D Elliot Burke <elliot@xxxxxxxxxx>]

>Remember that 'analog' in most cases is not truly so - the resolution is
>just beyond the resolution of the instruments being used to measure it.
>Photographic
>film has its upper resolution limit defined by the size and packing of the 
>silver iodide crystals, for example, even though without magnification it may
>appear to be continuous.
The meaning of analog is that there a property of one material analogous
to that of another. In the case of LP, the position of the groove is
analogous to sound pressure.  Photographic film is analog: the amount of
some chemical in the film is analogous to the amount of light used to
expose it.
Resolution is not an issue regarding this classification.  There are
analogs of lesser and greater degrees of accuracy, of course.

Elliot Burke
HighTide Instruments
elliot@xxxxxxxxxx


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