Sound Synthesis

[Tony Hardie-Bick]

Michael Zacherl wrote:
> Did they emulate the horrible crosstalk these machines have?
> Maybe a Synthi 100 Emulation would be great ... *cough*

The crosstalk is interesting, because each leakage path is a high pass 
RC circuit, where the R is dependent upon the input impedance of each 
unconnected destination and varies when destinations are connected, and 
the C depends on proximity of wires both inside the patchbay and 
elsewhere. Given that most of the circuits in the VCS3 give a degree of 
distortion, any patchbay setting which involves feedback (ie, even when 
no patch pins are present), results in complex dynamics which can only 
be approximated when a high degree of oversampling is used in a 
simulation of all the patchbay leakage paths (I suspect there are 
additional leakage paths occuring in the VCS3 cicuit - there wasn't much 
point in taking care with that patchbay goofing things up).

The filter, of course, is another matter...

Those using the digital version may heave a sigh of relief (even Herr 
Zacherl...), but then, what chaos you are missing! That chaos is present 
in the character of nearly every sound ever recorded on a VCS3.

Tony (HB)