[sdiy] transducers

[Metrophage]

Ok, I'll provide some fuel for your ignorance! >;]P

On the simple side, there are:

Karplus, K., and A. Strong. 1983. "Digital synthesis of plucked string
and drum timbres." Computer Music Journal 7(2):43-55, MIT Press

Jaffe, D.. and J. Smith. 1983. "Extensions of the Karplus-Strong
plucked string algorithm." Computer Music Journal 7(2):43-55, MIT Press

These are based on delay lines with feedback, the math is not
difficult, and these are easily adapted to various coding situations.

So far as describing several different excitations acting
simultaneously upon a spring or string, I found this to be quite
inspiring:

Adrien, Jean-Marie. 1991. "The Missing Link: Modal Synthesis."
Representations of Musical Signals, MIT Press

There are also other papers by Adrien which I would like to read, but
have yet to find prints of. This math challenges me a bit, but this as
a means of describing physical models sounds quite robust. There are
also many articles about (mostly non music specific) Modal Synthesis
online.

CJ



--- jhno <ear at heldscala.com> wrote:

> if anybody can point to spring model that is complete enough to
> describe
> all this, i would love to see it. then instead of haphazardly
> ignoring
> elements of the system, i could authoritatively ignore them.
> 
> jhno
> 
> 
> (actually i have messed with excitation of a long, straight, taut
> wire more
> than springs... very nice delay and resonance effects... negligible
> torsion)
> 
> 
> 
> 


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