User's Manual

Program Edit Mode
The KEYMAP Page
7-23
Timbre Shift
is parameter works only on multi-sample keymaps, and changes the root selection for
each key you play. With this parameter you can radically alter the current layer’s timbre
(basic sound characteristics). e nature of the change depends on the timbre itself, so this
parameter calls for experimentation. Basically, timbre shifting changes a note’s timbre by
imposing dierent harmonic qualities onto the note. A timbre-shifted note retains its original
pitch, but its harmonics are those of the same timbre at a higher or lower pitch. Positive
values for this parameter tend to brighten a sound, while negative values darken.
Here’s an example. If you shift the timbre up 4 semitones, then playing C 4 will result in
the pitch C 4, but will actually play the sample normally assigned to G
#
3, and shift its
pitch up four semitones. is will increase the playback rate of the sample, so although the
pitch remains normal, the timbre is brighter. You’d get the same eect by setting the Xpose
parameter on the KEYMAP page to -4 semitones, then setting the Adjust on the PITCH
page to +4 semitones. For multi-sample layers with narrow key ranges, large amounts of
timbre shifting will cause dierent sample roots to be played back.
Playback Mode
is gives you numerous options for manipulating the samples in the current layer as you
trigger them. Normal leaves the samples unaected, while Reverse plays them in reverse.
At a value of Reverse, the samples will continue to loop as long as notes are sustained. To
play them just once in reverse, you would adjust the length of the layer’s amplitude envelope
(explained later in this chapter). BiDirect (bidirectional) causes the samples to loop innitely,
alternating between normal and reversed playback. Noise replaces the samples with a white
noise generator.
Alternative Controller (AltControl)
See Alternative Switch (AltControl and AltMethod) below.
Alternative Switch (AltControl and AltMethod)
Many, but not all, Forte SE sample roots have been pre-assigned a carefully chosen alternate
sample start point that can be selected using the Alternate Switch feature (AltControl and
AltMethod parameters). is feature allows you to control the sample playback start/end
time triggered by any control source. (e alternate sample start point can be adjusted by
editing a sample, see Editing Samples on page 9-10 and The TRIM Page on page 9-14 for
details).