State Zero
36
Legato
Playing overlapping notes in one of the monophonic modes will provide a new
trigger for each key press. To achieve legato voicing where the amplitude (if
not other) envelopes do not retrigger for overlapped notes, pass the gate
signal through a slew rate limiter.
With the limiters down rate set slow enough, notes played close together will
not cause the gate signal to cross zero and the envelope will remain held from
the previous note. The up rate should be as fast as possible to maintain
accurate triggering of note on events.
Fingered Portamento
Similar to legato voicing, fingered portamento only slides between notes that
are played overlapping. Again the simplest way to achieve the discrimination
between notes that are overlapped or not is to pass the gate signal through a
slew rate limiter or low pass filter.
Setting both the up and down rates to the correct speed will keep the output
signal negative for notes played without overlap and positive for those played
overlapped. This signal can then be used to control the portamento rate, such
that as notes are played further apart the portamento time will reduce to zero.
This provides a smooth transition from portamento to none, unlike traditional
synthesiser fingered portamento modes where it is either on or off. To achieve
that effect, the output of the slew rate generator would be passed through a
comparator before being used to control the portamento rate.
Summary of Contents for State Zero
Page 1: ...State Zero Reference Manual Copyright 2010 Mungo Enterprises ...
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