Plug-in Reference

100
The included VST instruments
Modulation
You can select between 3 basic modulation characteris-
tics:
• The Phaser uses an 8-pole allpass filter to produce the classic
phasing effect.
• The Flanger is composed of two independent delay lines with
feedback for the left and the right channel respectively. The
delay time of both delays is modulated by one LFO with ad
-
justable frequency.
• Chorus produces a rich chorus effect with 4 delays modulated
by four independent LFOs.
The parameters are as follows:
SR parameters
With these buttons you can change the sample rate. Lower
sample rates basically reduce the high frequency content
and sound quality, but the pitch is not altered. This is a great
way to emulate the “lo-fi” sounds of older digital synths!
• If button “F” is active, the selected Part’s program plays back
with the sample rate set in the host application.
• If button “1/2” is active, the selected Part’s program plays
back with half the original sample rate.
• If button “1/4” is active, the selected Part’s program plays
back with a quarter of the original sample rate.
• A bonus effect of using lower sample rates is that it re-
duces the load on the computer CPU, allowing more si-
multaneous voices to be played, etc.
Prologue
Prologue is modelled on subtractive synthesis, the method
used in classic analog synthesizers. It has the following ba
-
sic features:
• Multimode filter
Variable slope low pass and high pass, plus band pass and notch filter
modes – see
“About the filter types” on page 104.
• Three oscillators, each with 4 standard waveforms plus
an assortment of specialized waveforms.
See “Selecting Waveforms” on page 101.
• Frequency modulation.
See “About frequency modulation” on page 103.
• Ring Modulation.
See “Ring modulation” on page 103.
• Built-in effects.
See “Effects (EFX) page” on page 109.
• Prologue receives MIDI in Omni mode (on all MIDI
channels).
You do not have to select a MIDI channel to direct MIDI to the Prologue.
Ö The signal flow of the Prologue synth is illustrated in
the section “Diagrams” on page 118.
Parameter Description
Song Sync This switches tempo sync of the Rate parameter on or off.
Rate Sets the rate of the LFOs modulating the delay time. If
Song Sync is activated the rate is synced to various beat
increments.
Depth This parameter controls the depth of the delay time mod-
ulation.
Delay This parameter sets the delay time of the four delay lines.
Feedback The feedback parameter controls the amount of positive
or negative feedback for all four delay lines. The adjust
-
able range is from -1 to 1.
Level This controls the output level of the effect.