Source Audio C4 Synth User Manual page 6

made then automatically switch back to the primary parameters five seconds after the last knob
adjustment.
INPUT/SENS Knob: A dual function knob that adjusts the level of INPUT signal going to the processor,
and also the SENSITIVITY of the envelope filter. To access the
•
INPUT (the Primary (Default) Parameter): Adjusts the volume level of the input signal. Given
the reactive nature of the C4's pitch detectors and envelope followers and the varying output
levels of different instruments and their passive or active pickups, it is important to set the
level of signal going to the processor. The C4 also includes a simple process for calibrating
your instrument to the INPUT level (go to the
instructions).
•
SENSITIVITY (the Alternate Parameter): Adjusts how reactive the envelope filter is to the
incoming signal. If you like to play hard, but still want a smoother, more relaxed envelope
filter, you should turn down the SENSITIVITY. For a sharper response to lighter playing, turn
up the SENSITIVITY.
MIX/VOL Knob: A dual function knob that adjust the overall wet/dry MIX and also adjusts the overall
output VOLUME.
•
MIX (the Primary (Default) Parameter): Adjusts the balance between the natural dry tone of
the instrument and affected wet signal. A 50/50 mix of wet dry signal resides at roughly 12
o'clock on the knob.
•
VOLUME (the Alternate Parameter) Adjusts the master VOLUME/Output of the pedal. Keep
in mind that the overall VOLUME will likely vary depending on the signal density of the preset.
CONTROL 1 and CONTROL 2: The functions of these knobs vary depending on the selected synth
engine.
Effect Selector Toggle Switch: Use the C4's three-position toggle switch and two preset banks to
easily access six different presets. First Preset Bank (Indicated by the green center LED): default the
center toggle switch selects between three presets stored in the first bank of presets. Second Preset
Bank (Indicated by the red center LED): Pressing the ALT button on the topside of the pedal opens
access to the second bank of presets. After pressing the ALT button the small LED at the top of the
pedal's face will start to blink, indicating that the second preset bank is accessible with the toggle
switch. Upon moving the toggle switch the center LED will turn red indicating the current preset is
drawn from the second bank.
Footswitch: Enables or bypasses the effect. Also, pressing and holding the footswitch from the
bypassed state toggles between the first and second preset banks.
ALT (Alternate Function) Button: The small black button located on the topside of the pedal next to
the CONTROL INPUT jack. Pressing the ALT button temporarily puts the pedal into Alternate Control
Mode (indicated by the blinking top center LED). Alternate Control Mode switches from the Primary
to Secondary function of the INPUT/SENS and MIX/VOL knobs. Also moving the center toggle switch
will switch between the Green and Red Preset Banks (go to the Preset Banks section for more info).
SA249
INPUT/SENSE Knob section
C4 Synth User Guide
for calibration
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