ART Pro Audio SGX Series - Guitar Effectss Processor - Manual (Page 74)

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:PITCH 2 = [0] (-)12 to (+)12 half steps in 1 half step increments
:FINE 2 = [0.00] (-)4.00 to (+)4.00 half steps in 0.06 (six cents) increments
:REG-FD = [PRE] PRE, POST
:LEVEL = [100%] 0 to 100 percent level in % increments
:POSTN1 = [31] 0 to 63 in on step intervals
:POSTN2 = [31] 0 to 63 in on step intervals
Pitch Transposing or pitch shifting can be used to develop helpful second harmonies or
other effects for vocals, instruments and even mixed material.
There are three "types" of pitch transposing to choose from in the SGX 2000 EXPRESS:
Smooth, Normal and Quick. Smooth relates directly to processing and splicing the signal
more slowly, resulting in a cleaner more precise sound. Use the Smooth setting when you
are shifting pitch more than a fifth with lower frequency inputs such as the low strings on
a guitar. Normal should be used for virtually all other applications of pitch shifting. There
is a little less delay than the Smooth setting and qualitative processing is achieved. When
you select the Quick setting, a shorter delay time is used causing faster splicing.
Generally you should use the Normal Type for most applications. If you encounter
problems relating to delay time, use the Quick Type, and if detuning becomes a problem,
use the Smooth Type.
The PITCH control lets you set the range of pitch change in half steps. The FINE
parameter lets you adjust the pitch in 6 cent intervals. Use the fine tune parameter to
create or adjust micro pitch shifting or fat chorusing effects.
REGENeration is useful when you stack the Pitch Transposer with the MONO DDL
algorithm. Each time a repeat is done it is shifted up or down by the pitch selected.
The Base Key parameter should be used when triggering the Pitch Transposer from a
MIDI keyboard. The amount of pitch shift may be set by MIDI Note On messages. The
values selected in the Base Key parameter correspond to the MIDI Key Number.
Example: BASE KEY = 60, (= middle C) if a D above middle C is played, the shift
amount will be set to (2). If base key is set to OFF, Note On messages will not affect
pitch.
The Dual Pitch Transposer allows you to assign two separate intervals of pitch shifting at
once. Interesting pitch combinations like a fifth combined with an octave (7 and 12 half-
steps), really fat chorusing (+0.12 and -0.12 half-step), and chorusing with pitch shifting
(+0.18 and any half-step interval) can be accomplished with this algorithm.
The parameters of the Dual Pitch Transposer algorithm are pretty much the same as the
normal Pitch Transposer. New Pitch and Fine parameters have been added for the second
interval. The two Pitch and Fine parameters are labeled as 1 and 2 (i.e. Pitch1, Fine 2).