[sdiy] 2164 Korgasmatron VCF

cheater cheater cheater00 at gmail.com
Tue Sep 7 13:54:42 CEST 2010


On Fri, Sep 3, 2010 at 16:06, Thomas Strathmann <thomas at pdp7.org> wrote:
> On 9/3/10 15:41 , cheater cheater wrote:
>>
>> Gotcha. Very well explained, thanks. I still don't understand why the
>> extra "s" effects in this exact sort of change, but I don't understand
>> transfer functions well enough yet :)
>
> Sometimes doing a partial fraction decomposition of a transfer function
> helps.

Interesting, I wouldn't have thought of that - thanks

> Looking at a transfer function as the product of some simple to
> understand signal processing blocks (like integrator, differentiators, and
> gain stages) for doing a sketch of the composed amplitude and phase response
> gives you a more "intuitive" understanding.

That's pretty cool. However I have a problem figuring out what the
Laplace plane works like. I still don't feel it naturally. Maybe I
should go and look at the transfer functions for some basic blocks,
that could help make it easier. I wonder what the best things would be
to start with.

> Perhaps have a look at some
> lecture notes on control theory.

Control theory is a whole discipline :) What specifically do you recommend?

> The more engineering oriented ones can give
> you quite some insight on transfer functions in the analog domain.

Hope so! :)

Cheers,
D.



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