[sdiy] physical modelling

[Stefano Costa]

Dave Krooshof wrote:

> These are in deed so straight forward, you could build them into your
> wristwatch. PM is interesting to model strings, reeds, tubes and drumskins
> with,
> but not something that hasn't really got a phyisical world of it's own.

No, this is not true. It's pretty easy, once you have modelled an instrument
(and this is definitevely not easy, if you are doing well the job), to change
some physical characteristic and simulate an "impossible" instrument.
For instance, a guitar with strings triple the size, what happens if you play
a string instrument in an atmosphere of helium, and on....

> I think the kick of analogue synthesizers lies in the area's where
> their behavior is not according to their models. This is the reason why
> you will find so many different schemeatics for - example- sine wave
> genarators. They should all be similar, yet they are not.

The problem is taking in account everything, and yes, there are some
unsolvable problems, even if you have al the computing power you want. But
given enough power, you can go very close to the real thing.

Stefano