[sdiy] Filter slopes

[Elain Klopke]

> I believe these plots are of the overall instrument response, not of
> individual notes, correct?  You didn't give us any details, but that's what
> they usually are.  More or less the formant response.  So probably a fixed
> frequency filter is what you would be wanting, not a VCF.  Could you give
> us more details, like perhaps the figure caption?
>
>
This is correct. The article is "Dynamic Changes of  Orchestral
Instruments" by David A. Luce from the AES E-Library (obtained legally). It
talks about the timbre or tone quality of the overall instrument in a
simplified manner. So yes, fixed filters are preferred.

Rutger mentioned spectral tilting of parallel filters and that got me
thinking about the tone control from the Big Muff Pi. I fired up the Tone
Stack Calculator and played around with the values and it "seems" like I
can get the responses that I'm looking for.
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