The Yamaha AN1x Synthesizer mailing list

simple FM works when there is a relashionship between a carrier sound wave 
and a modulation sound wave. what you hear is the carrier  sound wave that is 
being controlled, or modulated by the modulation  sound wave. the idea is 
that amplitude changes in the modulation sound wave alter the frequency of 
the carrier wave thus when changing the value of amplitude in the modulation 
wave you get frequesncy representation of that change in the carrier wave. on 
the AN1x it is achieved by splicing vco 1 into 2 oscilators..master and slave.

i hope i'm making sence...

Eitan Teomi.

<A HREF="http://ourworld.cs.com/teomi">http://ourworld.cs.com/teomi</A>