🚀 go-pugleaf

In article <26273@castle.ed.ac.uk> mjo@castle.ed.ac.uk (Martyn J O Clark) writes:
>Linked to my article asking for info. on Chas. Taylor, I would like to
>ask whether anyone has the CD mentioned above. I am trying to track down
>an acoustic illusion used by Prof. Taylor in the course of a lecture in
>London... Is there such a track on that CD  ---  of a musical tone which
>seemingly descends infinitely in pitch?
>
>I would be glad to here of anyone who has the CD!
>
>Martyn (mjo@castle.ed.ac.uk) 
>
>-- 
>==============================================================================
>I Have, even if I do say so myself, the BEST CHOCOLATE ICE-CREAM recipe in the 
>world...Mail mjoc@uk.ac.ed with your request...no special equipment reqd.

Hi Martyn, et al.,

I have the ASA's Auditory Demonstration CD and I must say that it's great!
I believe that the answer to your question is yes, it does contain
a demonstration of Shepard's Scale (an M.C. Escher painting for the ear).
I've also made a QuickTime movie of Shepard's Scale based upon a 
delightful book (w/CD-ROM) _Exploring_Mathematics_with_Mathematica_
by Theodore W. Gray and Jerry Glynn, Addison-Wesley, 1991; someday I'll
unleash on the net.  Also of interest is Malcolm Slaney's HyperCard stack
that complements the ASA CD; it's available via anonymous ftp from
ftp.apple.com.  (The ASA CD may be ordered directly from the ASA, see
the last few pages of a JASA for details.)

Joe (you've tempted me, please send me your chocolate ice-cream recipe)
-- 
.............................................................................
; Joe Campbell  N3JBC  jpcampb@afterlife.ncsc.mil  74040.305@compuserve.com ;
; My opinions are mine!   Happiness = Reality - Expectations, Click & Clack ;
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