SergeModular

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

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

>
> 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.

>
> 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
>

> 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
>
>

> .. but using output A wouldn't allow Thomas to play the TKB like a
> "traditional" keyboard and I wouldn't think that using the osc's
> scaled CV input can be adjusted to 1V/OCT across a wide-enough range
> (remember.. its an exponential curve)
>
>
> my 2 cents
>
> Y.:P
>
>

--- In SergeModular@yahoogroups.com, Yulian Pugachevsky <yulian.p@...> wrote:
>
> i think you misunderstood what i was saying. sure, the osc's scaled
> CV in can be adjusted, but i think it would be quite difficult to
> adjust it so it tracks 1v/oct over a playable range. i seriously
> doubt that you can take a v/oct source, shove it into the scalable
> input of the osc, adjust the pot 2-3 times and have that osc track
> the source. as you surely know, this type of calibration requires
> measurement tools and is usually done with precise multi-turn pots.
>
> as you say.. sure you can choose what you want for X in the X/oct
> equation, but when X needs to be something specific an precise.. its
> is not a simple task.. what I mean to say is that, in my experience,
> given the v/oct source, the fixed v/oct input will be a heck of alot
> more reliable in terms of tracking than the scaled input (no matter
> how much time you spend tweaking it)
>
> .. as far as using the TKB as a "traditional" keyboard... I dont
> think it was the intention to make that comparisson. I believe Thomas
> just wants to play equal-tempered melodies from the TKB's keyboard..
> for that.. correct calibration is required
>
> and btw... using the row outputs (A or B, C or D) when playing the
> keyboard will yield the same problem as using the KV out, except that
> the scaling would need to be done on the TKB (step levels) instead of
> the osc.. that's where the quantizer would come in handy
>
> Y.:P
>
> On 17-Aug-07, at 9:47 AM, John P wrote:
>
> sure it would. touch a key, get a voltage (at output A) and a pulse
> output at KP. You need to have the "keyboard" switch turned on.
>
> And the scaled oscillator input gives you something other than 1v/Oct
> ... you get "X"v/Oct. You choose what you want for "X".
>
> Anyway, the TKB is quite a ways away from being a traditional keyboard.
> Playing melodies is possible but if you grab a keyboard player off the
> street and park him in front of the TKB he won't know wtf to do.
>
> Yulian Pugachevsky wrote:
>
> > .. but using output A wouldn't allow Thomas to play the TKB like a
> > "traditional" keyboard and I wouldn't think that using the osc's
> > scaled CV input can be adjusted to 1V/OCT across a wide-enough range
> > (remember.. its an exponential curve)
> >
> >
> > my 2 cents
> >
> > Y.:P
> >
> >
> --
> m/n/m/l
> surreal electronic music, sound, noise
> http://www.mnmlnoise.com
>