Source Audio C4 Synth User Manual page 24

steady rate set by the Speed control in the LFO and Arpeggiator section. Turning the knob all
the way to the left provides 100% envelope follower control and turning the knob all the way
to the right provides 100% LFO control. Setting the knob anywhere in between creates a
mixture of both types of filter modulation.
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Bass: Boosts or cuts the low frequencies of the wet signal.
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Treble: Boosts or cuts the high frequencies of the wet signal.
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Mix: Sets the ratio between the wet and dry signal. Placing the knob at approximately 12
o'clock creates a 50/50 mixture of wet and dry signal.
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LoRetain Frequency: Rather than a simple Mix control the LoRetain parameter allows you to
split the frequency spectrum of your wet signal, meaning that the C4 effect applies only to
the frequencies above a certain cut-off point and leaves the lower frequencies dry and
unaffected. The LoRetain Frequency adjusts the point in the frequency spectrum where this
split occurs. As we turn this knob from left to right the cut-off point moves to higher
frequencies leaving more and more of your low frequency spectrum unaffected.
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Output Volume: Boosts or cuts the overall output level of both the wet and dry signals.
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Output Balance: Balances the level of the wet signals going to Output 1 (Left) and Output 2
(Right). Set the knob to 12 o'clock for an even stereo split to both Outputs. Turning the knob
left shifts the balance to Output 1 and turning the knob right shifts the balance to Output 2.
Voice Controls
The C4 features four individual Voices. Assign each Voice to any one of the possible options: Sine,
Square, or Saw Wave Oscillator, Monophonic Pitch Shifter, Polyphonic Pitch Shifter, or the dry signal
routed directly to the envelope filters and/or distortion block. Mix together any combination with
each Voice's dedicated Level and Pan Controls. All four Voice modules feature the same control set.
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On: Click the On buttons to engage or disengage each individual Voice. If the On button is
green the Voice is engaged.
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Source Pull-Down Menu: Selects the type of audio Source assigned to the each individual
Voice. Each Source may only be used once within each preset. The Source options are as
follows:
o Stereo Input Mix: Routes both the Input 1 & 2 signals directly to the envelope and
distortion blocks without applying pitch shifting or oscillator effects.
o Polyphonic Pitch 1 and 2: Routes the dry signal through the Polyphonic Pitch shifting
module. With the Polyphonic Pitch shifting module it is possible to play chords. Use
the Interval pull-down menu to select any interval up to three octaves above or
below the root notes.
SA249 C4 Synth User Guide 24