Source Audio C4 Synth User Manual page 26

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Tremolo knob: Each Voice's dedicated Tremolo control sets that Voice's individual tremolo
depth. The rate of all the Voices' tremolo effects are synced to the tremolo wave shape and
Speed knob in the LFO Module located further down the Editor.
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LFO Dropdown Menu: Selects whether the tremolo effect responds to LFO 1 or 2.
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Detune Knob and Modulate Button: Use the Detune knob to adjust the Voice's pitch either
up or down. Select the Modulate button below the Detune knob and assign the effect to the
LFO 1. The LFO (selectable in the LFO 1 & 2 block) continuously bends the pitch back and
forth between the original and detuned points. Use the subsequent pitch modulation to
create either subtle movement or a more intense vibrato effect. Mix one Detuned voice with
another Un-Detuned Voice and create a chorus or doubling effect.
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FM Knob: Adjusts the FM synthesis. FM synthesis applies to Sine Wave Oscillators only. FM
synthesis uses a separate LFO wave to modulate the frequency of the initial oscillator
creating an added frequency separate from the original one. Turning up the FM knob creates
a hairy and more tubular sound.
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Filtering Knob: Adjusts a separate filter applied only to the Monophonic Pitch Shifting effect.
Basically it works like a tone control for Monophonic Pitch Shifting effects.
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Destination Pull-Down Menu: Selects whether that Voice is directed to both the Distortion
and Filter modules, only the Filter module, or bypasses both modules and goes directly to the
Output Mixer.
Processor 1 & 2 Distortion
Adds distortion to any of the four Voices. Distortion is a very commonly used in analog modular
synthesizers - it not only adds intensity to the sound, its high harmonic content heavily accentuates
the sound of the modulating filters. The C4 includes 13 types of distortion, anything from a subtle
drive effect to extremely fuzzy Foldback effects.
Please note that it is only possible to run any or all of the four Voices through a single distortion type
and that the Distortion module has only one set of master controls.
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On Button: Engages or disengages the Distortion module.
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Voice Mix Monitors: The four meters labeled Voice 1 through 4 monitor the Processor 1 & 2
ratio of each Voice through the Distortion block.
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Distortion Type Dropdown Menu: Choose from any of the C4's 13 different distortion types.
SA249 C4 Synth User Guide 26