SergeModular

--- In SergeModular@yahoogroups.com, Yulian Pugachevsky <yulian.p@...> wrote:

>
> Thomas,
>
> I believe that there are trimmers inside the TKB that could be
> calibrated, however, i've never ventured there.

I should probably stay out of there...

I usually run th KV

> through a quantizer, but I'm not certain that it yields the result
> you're looking for (step1=0V & step 12=1V).

The Gold book states that the KV output simply outputs an increasing voltage, from 0 to
+5 at stage 16 (chapter 5, page 8 for a picture, but you get the idea).
So I suppose I should scale it on a processor, so that stage 12 outputs 1 volt. Maybe tune
two oscillators an octave apart, and then scale the KV output until it brings the lower
oscillator up an octave, in tune with the other one.
Are there any quicker, more reliable ways people do this?
I don't have a quantizer in my system.

>
> As far as the MS-20.. it's a Volt/Hz device.. in my experience, its
> almost impossible to convert V/Hz to V/Oct unless you're using a
> dedicated device like an MS-02 (MS-20 companion box.. quite hard to
> find.

Oh, OK. Thanks. I have no experience with keyboard synths, I simply assumed it used the
1v/octave standard. I'll probably forget about using the MS20 keyboard then.

>
> Hope this helps
> Y.:P
>
> On 16-Aug-07, at 8:49 AM, riluttante wrote:
>
> Hi,
>
> Could someone here offer any tips on how to best scale/tune the TKB
> to be played as a
> conventional twelve-tone equal temperament keyboard?
>
> I have little experience with this stuff, never having played a piano
> keyboard, but I thought
> I'd try to play a melody on my Serge for a change.
>
> I guess I should be taking the KV output, and scale that using a
> processor so that stage 1
> outputs 0 volt (it does by default, right?) and stage 12 outputs
> exactly 1 volt, and plug that
> into a 1-volt-per-octave input on an oscillator. That way the twelve
> steps from stage 1 to
> stage 12 will be equally divided into one octave?
>
> Also, I have an MS20 sitting around from a friend. I decided to take
> the "KBD CV OUT" from
> that and plug it into an 1v/octave input on a Serge PCO. It responds,
> but not in the equal
> temperament way I was expecting. I was expecting the MS20 keyboard to
> output
> 1v/octave, so I could use it straight away to play tunes on other
> synths with that standard
> too. Does anyone happen to know if the MS20 keyboard outputs a
> different voltage? It
> may very well be require serious calibration.
>
> Thanks!
>
> Thomas
>