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Re: VCFQX as portamento controller.

2002-09-14 by sasami@hotkey.net.au

The original VCF had a subsonic range that was usually not fitted, and it
seems, never brought to the panel. No doubt this was what Serge had in mind
at the time.

Ken

>Subject: Re: VCFQX as portamento controller.
>
>I discovered something similar to this a couple of years ago. I realized that
>portamento is really nothing more than a lowpass filter, so I though...
hmmm...
>what will happen if I use a four pole filter? One of my filters, based around
>the SSM2044 VCF IC worked really well. And as you mentioned, if the resonance
>was turned up, the portamento just went insane!!!
>
>R.
>
>
>> Someone posted something on AH the other week about how portamento is
>> implemented in IIRC Reaktor. I can't remember the exact details, but
>> it inspired me to route the CV out from my little Roland SH09, via thee
>> VCFQX, to, uh, another brand of voltage controlled Oscillator. I used
>> thee VCFQX because I figured that its low range setting would work best
>> in this application. However, even with the cutoff frequency turned up
>> all the way, some lag/portamento was evident. I found the high range
>> setting to be more effective. It works very well! Quite amazing in
>> fact! Better still is the very strange effect when you turn the "Q"
>> control up.
>> Amazing the stuff you would *never* have thought of, innit?
>>
>> x0x0x
>> --
>> Norman Fay
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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