Grainshift
Granular Pitch-Shifting Effect
ADM02
Grainshift is a pitch-shifting module built with granular
synthesis code originally developed for our Discord 3 plug-in.
Granular synthesis divides sound into small segments, or
grains, and reassembles them in different ways to produce
different effects. Grainshift offers a simplified set of granular
synthesis parameters to bring this powerful signal-processing
technique to the modular synthesizer world in an easy-to-use
and economical package. From subtle chorusing to diffuse
clouds of sound, Grainshift adds exotic new flavors to your
modular spice rack.
Control voltages present at the
jacks are added to the values set
with the knobs.
Positive voltages at the PITCH
jack increase the pitch shift;
negative voltages decrease it. The
CV jack adds an additional octave
(up or down) of shift to the range
available with the PITCH knob.
Positive voltages at the CHAOS
jack increase the amount of chaos
(pitch randomization); negative
voltages decrease it.
Positive voltages at the SIZE jack
increase the grain size; negative
voltages decrease it.
The useful range of voltage for the
CV jacks is ±5V.
The SHIFT knob changes the amount that
the signal's pitch is raised or lowered.
Turning the knob clockwise from its center
position raises the pitch; turning it anti-
clockwise lowers the pitch. The shift range is
up or down one octave.
The CHAOS knob randomizes the pitch and
size of the audio grains. Turning the knob
clockwise increases the amount of
randomization.
The SIZE knob controls the size of the grains.
Rotating the knob clockwise makes the
grains longer. Use the SIZE knob to tune the
module to suit your source material. Longer
grains provide a smoother sound, while
shorter grains preserve transients more
accurately.
The audio input signal goes in
here. The hardware will be
happiest if the signal level is
within ±7V.
All of the little sonic grains emerge from
here. Help them find their way in the world
of your modular system.
• For straightforward pitch-shifting, set to zero and
tweak the SIZE knob to taste. A hint of chaos can help
smooth the sound out by detuning the grains slightly.
• High chaos settings produce clouds of noise that bear
little resemblance to the input signal. While this can be
useful in itself, try mixing a little of Grainshift’s output with
CHAOS
the original signal to add a background texture.
• Put Grainshift in the feedback path of a delay (like, say,
our DubJr module) to create echoes that rise or fall in pitch
as they fade. Patch an LFO to the PITCH jack to create
echoes that rise and fall as they decay.
Assembled in USA from US and foreign components.
Revision 1.0
©2013 Audio Damage, Inc.
www.audiodamage.com
KnobsControl-Voltage Jacks
Audio Input Jack Audio Output Jack
(1 Seiten)
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