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Doc Q7.0
Tremolo/Panner [PAN]
5.21
The
Tremolo/Panner
block, as its name suggests, has two uses. Tremolo varies the volume of a signal in a pulsing
or chopping way, while the Panner (often referred to a “auto-pan”) varies left and right channel volumes to create
the illusion of motion in the stereo field. Tremolo can be used to get classic "surf" sounds (add some spring
reverb!) or to create stark, modern “chopper” effects (use a square wave LFO!) Panning covers anything from slow
swings to psychotic shudders.
The
Tremolo/Panner
block supports X/Y Switching on the XL/XL+ only. See p.
Each Axe-Fx II preset can use two fully independent
Tremolo/Panner
blocks.
Figure 5-24 – The Pan/Tremolo Block
Parameters
EFF TYPE
– Effect Type chooses between Tremolo and Panner.
RATE
– Controls the speed of the tremolo or panner effect. Set fully counterclockwise to sync the chorus LFO
to global LFO1. When
RATE
is shown in parenthesis, it is being set automatically by the
TEMPO
parameter (see
below). Set the
TEMPO
to “NONE” for manual control.
DEPTH / WIDTH
– Sets the intensity of the modulation. When
WIDTH
is set to more than 100%, the Panner
uses psychoacoustic effects to pan beyond the boundaries of the normal stereo image.
TEMPO
– Locks the rate to the global tempo. For example, if the global tempo is 120 BPM, and
TEMPO
is set
to a “1/4,” the LFO rate will be 2 Hz (120 BPM / 60 seconds = 2). To ignore the global tempo, set the tempo
control to NONE.
LFO TYPE
– Selects the “shape” of the LFO waveform. Try experimenting with the Log or Exp waveforms.
DUTY
– This varies the duty cycle—or “symmetry”—of the Triangle, Square, and Trapezoid waveforms.
LFO PHASE
– Adjusts the phase angle of the LFO’s right waveform. With extreme settings, the Tremolo turns
into a Panner and the Panner turns into a Tremolo!
on p.
for more information on LFO waveform shapes, duty, and phase.
START PHASE
– In tremolo mode, determines where the LFO will start at the moment the block is engaged.
PAN CENTER
– In panner mode, this shifts the apparent center of the stereo image.
Tremolo/Panner Mix Parameters
The
Tremolo/Panner
block has a
MIX
page with
LEVEL
,
BALANCE,
and
BYPASS MODE
parameters.
for more information.
