[sdiy] Filter slopes

[Ian Fritz]

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?

Ian

> On Jun 10, 2018, at 11:43 PM, Elain Klopke <functionofform at gmail.com> wrote:
> 
> Hey all,
> 
> I was reading an article about the spectral content of various instruments (woodwinds and strings) and while they didn't have any circuits, there were some tables showing cutoff frequencies and high and low slopes. Several of the pictures looked like bandpass filter responses with different slopes on each side. How would I go about doing that? Is the slope determined by the gain of the op amp in an active filter? If it's that easy, would it be a highpass filter followed by a lowpass filter each with their own gain settings?
> 
> -Ian
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