[sdiy] Where's Portamento?

Charles Bisaillon sdiy at oveloe.com
Wed Sep 13 05:46:05 CEST 2006


Ok then I'll find it. Thx

But I have to say that different portamento times for different VCO is a
really cool thing. I have experimented with it many times on my Vermona
MARS, it has 2 VCO with individual portamento. Check it out.
http://www.vermona.com/en/produkte/mars/mars.html?id=77&page=1

Charles

 

> Portamento is usually part of the keyboard or the control voltage soure. In
> order for several VCOs to track when used together, they would need to use a
> common portamento circuit, so that makes putting it in the VCO less than
> optimal.
> 
> The circuits are often called "slope", "slew", "lag" or similar. They are
> out there.
> 
> Ken
> 
>> So I'm in charge of the VCO for our modular capstone project. I've read
>> through the sections in Barry Klein's book and in the preferred circuit
>> collection (EN). I get the concept of oscillator and all the building blocks
>> involved. Most VCO circuits have similar features that are desirable but I
>> wasn't able to find portamento. In my unexperienced opinion, I can't imagine
>> it would be hard to implement such a function on the VCO. So why wasn't it
>> popular? Was it part of another module patching into CVin?
>> 
>> Thanks
>> 
>> Charles
>> 
>> 
> _______________________________________________________________________
> Ken Stone   sasami at hotkey.net.au
> 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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