3P Upgrade Notes; Waveforms; Sync; Sens Control - Roland KIWI-3P Manual

3P Upgrade Notes

Waveforms

Sync

Sens Control

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The Kiwi-3P Matrix changes the JX-
3P Waveforms available. These can
be mixed in any combination.
The Wave types are
SAW
PULSE WIDTH
SQUARE.
Note – Each raw wave type is at the
maximum level in
hardware. When you mix them they
are added together increasing the
level further. This can distort the
internal hardware. No damage will
occur but the sound is not always
as you would expect.
The Kiwi-3P Matrix has three types
of Sync
SYNC1 – The Square wave of DCO1
is used to gate (reset) the clock
generator of DCO2. This effects all
the waves of DCO2.
SYNC2 - The Square wave of DCO1
is used to gate (reset) the clock
generator of DCO2. In addition the
Square wave of DCO1 is used to
reset the SAW wave generator in
DCO2. This effects all the waves of
DCO2.
The behaviour of the Sens control
during parameter editing has been
changed from the way the original
3P works. When editing a parameter
the current value of the parameter
must be matched before the Sens
Control will have any effect on the
parameter value. e.g. if the filter
cutoff is set to 7 the Sens must be
moved to 7 before it will begin to
edit the setting. This has been done
so that a parameter will not jump to
the Sens setting which can cause
unpredictable and
unpleasant results.
Some notes about the PW wave.
The Pulse wave is derived from the
Sawtooth
generates. The hardware to do this
is 1970s style resistors, capacitors
and op amps making the result not
very precise and will change with
temperature changes. As the quality
of the PW wave generation depends
the JX-3P on the quality of the Saw wave the
PW clarity can suffer. We have built
in to the upgrade a system to adjust
out the worst of the variations and
improve the Saw wave shape but it
is a feature of the 3P sound that the
waves are not perfect.
METAL - The Square wave of DCO1
is used to reset the SAW wave
generator in DCO2. The sound of
the DCO2 SAW is the only wave
effected.
The switch settings are not changed
using the Bank buttons as with the
original JX-3P . They are now also
changed using the Sens control.
See the
Editing for details on this.
sometimes
Kiwi-3P Matrix Upgrade User Manual v1.2
13
wave that the 3P
section on Parameter