Tom Fine wrote:
> One place where this sort of thing would be very useful -- if it's not
> already being done, is scanning old optical soundtrack films that have
> shrunken or edge-decayed so they don't work reliably in a sprocket drive.
> Perhaps there's some rubber-roler way to feed them through a scanner and
> then "play" X number of sprocket holes per second or some other means of
> playback. Like I said, know Hollywoods brains and deep pockets, this might
> already be out there and in use.
>
> -- Tom Fine
Unfortunately, "Hollywood" has little interest in such matters. A friend
then at Warner's (he now runs a media lab at Microsoft) brought me such
a problem. We did some preliminary work on recovery of optical tracks
using gray-scale scanning and optimization techniques to find a
best-estimate audio track, exploiting the nominal symmetry of the
(monaural) signal. He presented our preliminary results and a plan for
recovery on a substantial scale.
Interest: nil.
Mike
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