Re: [ARSCLIST] Early Stereo 1881 and 1931 (Was - Dynadoodoo

["joe@xxxxxxxxxxx" <jsalerno@xxxxxxxxxxxxx>]

it may be more difficult than it seems

those machines were spring driven, assuming any kind of speed stability 
is probably going to be an exercise in frustration - unless you can 
write a computer progarm that will modify one "track" to conform to the 
other. Instability will be randon and unpredictable I would say

you may have 2 records playing simultaneously, but creating a stereo 
image requires maintaining very tight sync, as in a tolerance of miliseconds

it seems we have discussed this on this list or 78-L in the past

joe salerno

Steven C. Barr(x) wrote:
> ----- Original Message ----- 
> From: "Robert J Hodge" <rjhodge@xxxxxxx>
> > The Columbia Multiplex Grand Graphophone of 1900 used a single wax
> > cylinder which contained three tracks designed to be played back
> > simultaneously with three reproducers through three horns.
> > If the three tracks were recorded with three horns and 3 recorders, then
> > this could easily be one of the first stereophonic machines.
> Well...IF one could find multiple copies of any early cylinders made
> before the emergence of duplicates by moulding (that is, when multiple
> copies were made by positioning the artist in front of an array of
> machines...!)...it MIGHT be possible to find two copies which came
> from the two machines at each end of the array...which would enable
> the reconstruction of a "stereo" version...?!
>
> Steven C. Barr