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Stupid V/Hz and V/Oct question

2002-02-08 by sucrosemusic

Alright, just checking on something here.  A "Volt/Octave" VCO is 
actually an expoential VCO, since it converts a linear voltage into 
an expoential response... so a MIDI-CV converter, or CV Keyboard 
would actually be putting out a liner change as you go up the 
keyboard.

So, an LFO patched straight into the Volt/Octave input of a VCO, say 
a uVCO, would be able to make the osc. shift up and down an octave 
each way, right?  But the 800s are exponential, so plugging them 
straight into a Volt/Octage input on a VCO would make an apparent 
expoential change in audio, even thogh it was already expoential, it 
would *sound* exponential, because it would actually be doubly 
exponential?  I assume, in that case, you'd use the "Exp" setting on 
a MOTM-300's FM jack to get an apparent linear response, right?

Another question is the FM on the various filters, (420 and 440 
really).  Does that FM expect a linear or exponential curve?  Or, is 
Volt/Octave expecting a linear signal, and FM expecting an 
exponential one?

Ok, that's all.

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