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Subject: Re: [korgpolyex] Re: Modifying SLFO3/4 behavior

From: Michael Hawkins <korgpolyex800@...>
Date: 2014-05-19

My biggest hope for the DCO end of things was to make all voices clocks independent. At the moment, the MSM 5232 chip has two clock inputs. One for four voices and one for the other four. This means that the tonal quality of chords is severely limited by the locked in phase tone generation. Making them independent would allow detuning of all voices. If we can use a super cheap PIC, one for each voice, create some nice waveforms and have independent clocking then I would be very happy indeed.

Keep in mind that the existing master clock that goes into the tone generator is VCO controlled by joystick and modulation. We need to keep all of that intact.

I would like to keep the existing TG in place. And just insert the new TG into the mix(or not). That part is is not difficult when the HAWK is installed because it can be programmed to not turn on the existing TG voices at all (or not). We should also keep the same EG design that uses a VCA technique that plugs 0-5 volt into the MSM5232 to control each voice output level. So the design would require accepting a 0-5 volt signal for VCA control.

Mike

On Monday, May 19, 2014 11:56 AM, "bperkins211@... [korgpolyex]" <korgpolyex@yahoogroups.com> wrote:


 
I'm hoping to get around and update the new FW on my HAWK by this weekend to give it a go.

Thanks for all the clarification on what was going on with the parameter #'s.  

I've been studying up on how to program PICs to create simple Osc. waveforms.. there's many open source examples already.
the Electric Druid's waveform pic code could be altered to accept digital control vs. CV without too much trouble, I'd assume.

I'd think a nice simple mod would be to be able to distort the Poly's DCO's prior to the VCF and give it more grit to those blocky/ringy DCO's.