Hi folks:

I am curious about GEN 15, the subroutine used to create two tables of
polynomial functions to be used in phase quadrature waveshaping.  My
question is, what is phase quadrature waveshaping?  I've done some
internet searches, and the only info I found was a brief description of
how to implement phase quadrature waveshaping in Common Lisp Music. The
description of the CLM file does suggest that it is useful for creating
single side-band spectra, but it gives no further details.

Does anyone know of any literature that might describe phase quadrature
waveshaping?  I am going to look up the major articles by Arfib and
LeBrun on waveshaping in general, in case they shed some light on the
topic.  Anyone else know of other sources?  I have a pretty nice little
computer music literature library, and I haven't found any mention of
it.

In general, I am very interested in single sideband modulation.  I am
going to try and implement a frequency shifter in Csound
(single-sideband amplitude modulation), and am going to explore the
asymmetrical FM synthesis technique described in Dodge and Jerse.  I
think there might be some interesting stuff going on in there.