Portamento Rate; Attack Portamento - Kurzweil Forte SE Musician's Manual

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Portamento
This parameter is either on or off. The default value of Off means that portamento is disabled
for the current program.
Portamento is a glide between pitches. On actual acoustic instruments like violin and
bass, it's achieved by sliding a finger along a vibrating string. On most keyboards that offer
portamento, it's achieved by holding down a key that triggers the starting note, then striking
and releasing other keys. The pitch glides toward the most recently triggered note, and
remains at that pitch as long as the note remains on. The Forte SE gives you two ways to get
portamento. See the
When applying portamento to multi-sampled sounds (Acoustic Guitar, for example), the
Forte SE will play more than one sample root as the pitch glides from the starting pitch
to the ending pitch. This may cause a small click at each sample root transition. You can
eliminate clicks by using the

Portamento Rate

The setting for Portamento rate determines how fast the current note glides from starting
pitch to ending pitch. The value of this parameter tells you how many seconds the note takes
to glide one semitone toward the ending pitch. At a setting of 12 keys/second, for example,
the pitch would glide an octave every second. The list of values is nonlinear; that is, the
increments get larger as you scroll to higher values.

Attack Portamento

This parameter toggles between two types of portamento. When set to On, the Forte SE
remembers the starting pitch so you don't have to hold a note on to achieve portamento. The
pitch always glides to each new note from the previously triggered note. When set to Off, the
pitch will glide to the most recently triggered note only when the previous note is still on (in
other words, you must use legato fingering).
Mono Sample XFade
When applying portamento to multi-sampled sounds (Acoustic Guitar, for example), the
Forte SE will play more than one sample root as the pitch glides from the starting pitch
to the ending pitch. This may cause a small click at each sample root transition. You can
eliminate clicks by setting the Mono Sample XFade parameter to On. When the Mono
Sample XFade parameter is set to On, the Forte SE performs a crossfade at each sample root
transition to eliminate clicks.
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Attack Portamento parameter below.
Mono Sample XFade parameter below.