Doepfer

the blacet klangwerk ?


--- In Doepfer_a100@yahoogroups.com, "shm1400" <shm14@h...> wrote:
> Just remembered, the Buchla 285 balanced modulator does this.  Any 
> others?
> 
> --- In Doepfer_a100@yahoogroups.com, "shm1400" <shm14@h...> wrote:
> > By the way, I forgot to mention that my example below requires a 
> DC 
> > coupled ring modulator, so it will not work with the A114, though 
> it 
> > works with a PAIA 9710.  It might also work with the Doepfer A-
133 
> > Polarizer, though I don't have this module yet and haven't tried 
> > it.  If anybody has a 133 one and feels like trying the patch, 
> > please let me know if it works.
> > 
> > --- In Doepfer_a100@yahoogroups.com, "shm1400" <shm14@h...> wrote:
> > > The recent poll on the Nord Modular style clocked random 
> generator 
> > > got me thinking about the Nord Modular's ring modulator.  It 
has 
> > an 
> > > additional control that varies the modulation from ring to AM 
to 
> > > none, which can also be "voltage" controlled.  This is 
extremely 
> > > useful and I don't know of an analog ring modulator that does 
> this 
> > > out of the box. 
> > > 
> > > I have been trying to do something similar using existing 
> > modules.  
> > > It is my understanding that ring modulation differs from AM in 
> > that  
> > > the carrier is inverted when the modulator is negative. Also, 
in 
> > the 
> > > Nord, when the control is zeroed and there is no modulation, it 
> > > simply passes the carrier unaltered. 
> > > 
> > > So, to model the nord's ring modulator, I have started by 
adding 
> > an 
> > > offset to the modulator so that it is all positive (or, better, 
> > > negative), then attenuating the signal with a VCA (this 
> > attenuation 
> > > is the "ring to am to nothing" control) then adding another 
> offset 
> > > to make the modulator AC again when the VCA is full open, and 
> > > sending that signal to the ring modulator's modulator input.
> > > 
> > > Is this correct?  Does anybody have an easier way of 
> accomplishing 
> > > this same end?  Does anybody know of an analog ring modulator 
> that 
> > > does this without outboard stuff?  Hey, could this be an idea 
> for 
> > a 
> > > new module?