Just one other issue I wanted to mention in respect to using trapezoidal
integration / bilinear TPT vs. trying to "manually" fix "simpler" Euler-like
models. Besides giving a nice frequency response of a digital model, the BLT
also results in an "equally nice" phase response, which also affects the
sound to an extent. When comparing the models, one also shouldn't forget the
time-variant (modulated parameters) behavior of the structures (which I
guess is the primary reason to use SVF instead of DF), but this is much more
difficult to theoretically analyse.
Regards,
Vadim
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Vadim Zavalishin
Senior Software Developer | R&D
Tel +49-30-611035-0
Fax +49-30-611035-2600
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