[sdiy] v/octave standard ?

[John L Marshall]

You could use two rotary switches each with precision resistor chain and one
calibration pot. 1) could go from 0 Volts to 11/12 Volt in 1/12 Volt
increments to choose the semitone. The other could go from 0 Volts to 8
Volts in 1 Volt increments to choose the octave. This could be part of your
VCO or a separate module to control several VCO's.

----- Original Message -----
From: TooManySynths <p8051 at yahoo.com>
To: John L Marshall <john.l.marshall at gte.net>; <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, September 12, 2001 2:53 PM
Subject: Re: [sdiy] v/octave standard ?


> No doubt.  What I am recalling is the combination of
> frustration and elation of the two most common methods
> of basic pitch control.  For example, I really like
> the SH101 for musical sounds as I seldom have to think
> much about what pitch the osc is playing.  If I use
> the internal sequencer or arp then it is a simple
> matter to get it quickly in tune with other live
> synths.  The roland 102, by comparison, is a royal
> pain in the ass to get a running sequence with an
> external sequencer in tune...quickly.  But, what fun
> to continuously sweep that VCO from top to bottom, or
> some points in between.  Not to mention that it makes
> nice timbral changes when you are hardsyncing it to
> another osc.
>
> So, I'm thinking should I leave off the coarse tune
> control on my VCO's and put an octave switch on
> instead. I could use an external control to provide a
> coarse sweep if desired?
>
> I have also considered mixing the approaches, or
> calibrating one end of the dial, or using center
> detent pots....
>
> I dunno
>
> Thanks
> Daryl
>
>
> --- John L Marshall <john.l.marshall at gte.net> wrote:
> > Many VCO's just label the controls 0 through 10 with
> > half ticks, which is
> > good enough for reference.
> >
> > I like the idea of a voltmeter on the front panel so
> > that values can be
> > recorded. You do want to be able to recreate sounds
> > efficiently. But then
> > while going through the frustration of trying to
> > recreate that perfect sound
> > you had yesterday a new even more interesting sound
> > is discovered.
> >
> > ----- Original Message -----
> > From: TooManySynths <p8051 at yahoo.com>
> > To: <synth-diy at dropmix.xs4all.nl>
> > Sent: Wednesday, September 12, 2001 12:15 PM
> > Subject: [sdiy] v/octave standard ?
> > > Should I just put little marks on the front panel?
> > Put
> > > a voltmeter on a panel somewhere?
> > >
> > > Thoughts?
> > >
> > > Thanks
> > > Daryl
> > >
> > >
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