Re: (idm) my apologies

From Et Pharmacistic Paradoxia
Sent Thu, Sep 3rd 1998, 21:33

Couldn't "true" quad sound be done this way, then?

On Thu, 3 Sep 1998, Alex Reynolds wrote:

> That sounds almost like you're describing some sort of error correction on
> a piece of vinyl...
> 
> Such a two-tracked record could be played on a deck with a two-needle arm,
> the distance between needle tips equalling the distance between groove
> valleys. The advanced deck would be less susceptible to bumps *and* able to
> take the two signals and subtract noise from either, like a pair of
> chromosomes. Something like that could be "complete without surface
> noise"...
> 
> :: Alex
> 
> >My question is: has anyone made a record with two parallel grooves that
> >spiral inward between each other that have different tracks with the same
> >bpm that have the their cue points line up, such that if the needle skips
> >to the other track  (the one in parallel, not one groove ahead or behind)
> >it is still in time and in sync?  Whew!
> 
> __________________________________________________________________________
> Alex Reynolds                               Distributed Support Specialist
> Department of Biology                  School of Arts & Sciences Computing
> University of Pennsylvania                                Philadelphia, PA
> email:xxxxxxxx@xxx.xxxxx.xxx                            phone:215.573.2818
> 
> 
> 

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