Kurzweil Forte - Setting up the Sync Square Oscillator

Program Edit Mode
Editing VAST Programs With KVA Oscillators
7-74
Note: If you put more than one oscillator in an algorithm, you will only hear the
output of the last oscillator in the algorithm, unless an algorithm is used to route the
earlier oscillator around the last oscillator and into a MIX function block, or if the
last oscillator processes its audio input.
Anti-Aliased Oscillators Aliased Oscillators
Size Name/Type Size Name/Type
1 Block LPNOIZ (noise + low pass lter) 1 Block SINE
2 Blocks SINE SAW
SINE+ TRI
SAW SQUARE
RES NOISE (noise + low pass
lter with resonance)
NOISE
SQUARE SINE+
3 Blocks PWM (Pulse Width Modulation) SAW+
4 Blocks SYNC SAW NOISE+
SUPER SAW SW+SHP (Sawtooth + Shaper)
TRIPLE SAW 2 Blocks SHAPED SAW
8 Blocks SYNC SQUARE (master) >>,
>>SYNC SQUARE (slave)
(4 blocks each)
PWM (Pulse Width Modulation)
Setting Up The Sync Square Oscillator
e Sync Square oscillator is actually comprised of two oscillators, a master and a slave, set
up to emulate the way sync square oscillators worked on classic analog synthesizers. To create
a program using Sync Square, select Program 998 Editor Template. Select “none” on the
KEYMAP page. Select “user” on the AMPENV page for an amp envelope. On the ALG
page, select Algorithm 5 at the top of the page. Use the cursor buttons to select the function
block and use the alpha wheel to select the “SYNC SQUARE (master) >>” function. Next,
press the << soft button to change soft button pages until you see “DupLyr.” Press DupLyr to
duplicate the layer, creating layer 2. In layer 2, on the ALG page, change the function block
to “>> SYNC SQUARE (slave)”, and set the Alt Input parameter to “Layer 1.” e nal step
is to go to Layer 1’s DSPCTL page and turn the Level parameter all the way down, to -96dB
(this ensures that you will only hear the output of the slave oscillator on layer 2, which is the
intended function of Sync Square).
Now the Sync Square oscillator should be working. e “Synco” parameter, Sync Oset, is
the main parameter for shaping the tone of this sound. Synco sets the sync oset between
the master and slave square waves in each corresponding oscillator, which changes the shape
of the waveform output by the slave oscillator. e Sync Square oscillator is most expressive