Hello Simon

> Wouldnt the same thing apply for a modification of this type in a
> Juno-1/2 as they have same filters inside?
> The modification making this possible is software related right?

The Juno1/2 have slightly different filters (VCF/VCA-combi chip at the
Juno1/2 vs. separate VCF chip and half discrete VCA at the JX3P).

In the JX3P the mod is a software patch. Basically this idea should work
with all synths, which provide a level control per patch, or at least a
level control at the VCA (in opposite to the volume know, which sits at
the output of the synth). It depends on the synth, whether it has to be
done in the software or in the hardware.

For the Juno1/2 there might be even a possibility to make this mod at
the hardware level: those have a VCA after the chorus board. One could
pick the resonance control voltage from the mainboard and mix it to the
control voltages for this final VCA on the chorus board.
I don't have a Juno1 or Juno2 and I did not investigate it completely,
but from the first look at the service manual it should be doable.

And last but not least one might add such a VCA in the output to every
synth, which works with voltage controlled resonance.



BTW: Increasing the level with higher resonance is nothing new (Roland
did it already in the TB303, and similar in the System 100). I also can
imagine, that the level drop with higher resonance was a main reason,
why a level per patch was included to most synths. So everyone can adopt
the level to the resonance for each patch.
The really intriguing thing is that the level adopts automatically when
you change the resonance in realtime while you are playing.


Florian