[sdiy] Filters

[The D.U.G.]

Ok.. I could resist to expose my stupidity.

In a VCF.

Does Voltage Controlled just mean that it has a CV input?
Does the voltage modulate the cutoff freq.?
Is the voltage requried?
I.E. What if I want to make a guitar fx pedal?

Peter Grenader wrote:

>One thing to know though - as a true replicate of the original, Ken's the
>Steiner filter does not have a large oscillation range  - definitely not
>across the whole spectrum, probably only three or so octaves.
>
>But as a filter (which I would assume would be the primary use *of* a
>filter) -- THIS THING IS SCREAMING!!!!
>
>Very rich - can be warm, but wants to be nasty.
>
>kinda like Ken, actually.
>
>(kidding).
>
>- P
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>john mahoney wrote:
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>>----- Original Message -----
>>From: "David Reichert" <dreichert at sympatico.ca>
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>>
>>>Looks pretty good, just wondering though, is the CV set at 1V/oct or is
>>>it linear? 
>>>      
>>>
>>>From http://www.cgs.synth.net/modules/cgs35_syntha_vcf.html:
>>>      
>>>
>>Notes: 
>>
>>a.. [snip] 
>>b.. Frequency to CV response is exponential.
>>
>>That means V/Oct.
>>--
>>john
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