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Re: [motm] 1v/hz vs. 1v/oct

2006-11-16 by Richard Brewster

Here's an interesting article:

http://en.wikipedia.org/wiki/CV/Gate

The term is Hz/Volt and the article shows a 55Hz/V example.  This 
doesn't answer the question.  But it clarifies it.  You need to specify 
the Hz/V you want.  The circuit to transform 1V/octave to 55Hz/Volt 
would implement a transform function going from the voltages values on 
the top row to the corresponding ones on the bottom:

X - Y
1.00 - 1.00
2.00 - 2.00
3.00 - 4.00
4.00 - 8.00
5.00 - 16.00

Y = f(X)

So what is f?  My math isn't that good tonight.

Richard Brewster


Jonathan Snipes wrote:
> Hey friends,
>
> I just acquired a metasonix tm-3 oscillator, which takes a CV input  
> of 1v/hz (as opposed to 1v/oct) ... I got the one with MIDI, so I can  
> theoretically drive it alongside my other 1v/oct equipment on two  
> separate midi channels that output the same information, but that's  
> rather inelegant, and what if I want to drive it from a non-MIDI CV  
> source (LFO, envelope, sequencer, etc) or add slew to it, etc etc?
>
> Is there a handy conversion module that goes back and forth between  
> the two anywhere?  or a PCB/schematic of one I could build?  I don't  
> know a lot about it, but seems like it would be pretty useful and not  
> *too* tough, yeah?
>
> -Jonathan
>
>
>  
> Yahoo! Groups Links
>
>
>
>
>
>

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