Rocktron Xpression, User Manual

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Pitch Shifting is used to change the pitch of the input signal to produce a
harmony note based on the input signal. The harmony voice may be of any fixed
interval - up to one octave above the input signal to two octaves below - and is
selected in 20-cent increments. Fine adjustment can be made in one cent (1/
100th semitone) increments.
The PARAMETER SELECT control will allow you to access each of the following Pitch Shift
parameters:
The PARAMETER ADJUST control allows you adjust the selected parameter
Functions and Parameter Descriptions
PITCH
SHIFT
Function
PITCH SH I/O
PSHIFT OUT
PS PAN
PITCH
FINE
PS-SPEED
The PITCH SHIFT I/O parameter determines whether the pitch shift
circuit is active or bypassed for the current preset. Select IN to engage
the pitch shift circuit. Select OUT to bypass the pitch shift circuit.
The PITCH SHIFT OUTPUT parameter determines the volume of the
pitch shifted signal. The DIR/EFF MIX parameter in the Mixer
function also affects this volume.
The PITCH SHIFT PAN parameter allows you to pan the shifted signal
to the left or right channel.
The PITCH parameter selects what harmony note the Xpression will
produce based on the input note. The value displayed for this parameter
represents the number of cents that the signal will be shifted (adjustable
in 20-cent increments). Each 100 cents (or five 20-cent steps) above or
below "0" represents the number of half-steps the shifted signal will be
from the input signal.
This parameter is adjustable from "-2400" to "+1200", where "-2400" =
two octaves below the input signal, "0" = unison and "+1200" = one
octave above the input signal. Refer to the table on the following page
to determine the cent value for each fixed interval.
The FINE parameter allows for adjustment in l-cent steps for fine
adjustment of the harmony note.
The PITCH SHIFT SPEED parameter determines the amount of time
delay used in the shifting process. SLOW results in the longest delay
and the highest quality shifted signal (especially at larger amounts of
pitch shift). FAST results in the least delay, but the lowest quality
shifted signal. This setting should only be used for slight amounts of
pitch shift.
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