LinPlug SaxLab User Manual page 25

CT (Crossfade Time): The CT (Crossfade Time) control is used to set the
length of time taken to move from the pitch of the previous note to that of the
note currently being played. However, the CT (Crossfade Time) is more than
just a conventional portamento control. When the CT (Crossfade Time) is set
to zero, the length of the crossfade time is the same for all notes regardless of
their duration. As the value of the CT (Crossfade Time) is increased, the
portamento time becomes adaptive and is determined by the duration of the
previous notes. This means that a note with a long duration will have a
correspondingly long crossfade time. A note with a shorter duration will have a
shorter crossfade time. This is useful for playing passages that contain notes
with a mixture of different durations. For example, say that SaxLab 2's
LinPlug SaxLab User Guide 2.0.3
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