Reading Musical Box Discs
By Jim Heyworth
While on the thread of optically scanning musical box discs, it occurred to me that one important point may so far have been overlooked.
If one is using a "tracker bar" arrangement to do the reading should it not be curved in the plane of the disc rather than straight ?
The surface velocity of the outer disc projections is much greater than for those near the centre (hence the treble end of the comb is always near the edge of the disc). This causes the star wheels at the edge to advance much more quickly than those near the centre resulting in a relative delay in the bass that should be compensated.
Think of a taught wire hooked over the centre spindle and pulled radially along the top edge of the star wheels . If I use it as a substitute for the disc projections to rotate the star wheels by pulling it tight and moving it in the direction that disc would normally rotate, would not the treble notes near the edge play before the bass notes at the centre ?
I expect this situation could also be managed with a straight tracker and software but I don't think Cakewalk is up to it.
Just my thoughts.
Jim in Sechelt
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(Message sent Mon 5 Aug 1996, 18:53:35 GMT, from time zone GMT-0700.) |
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