19
Arpeggiator
LFO Speed: Two methods of LFO speed
control are available:
Beats/Clks: Activating this option permits
the LFO speed to be specified in terms of
a number of whole arpeggiator beats and
individual clocks (fractional beats). Under
Beats/Clks, the LFO waveform goes
through a complete cycle over precisely
the specified amount of "rhythmical" time.
With this option, LFO speed is based upon
current tempo and beat and adjusts itself
accordingly if either the beat length (Note
Length) or the tempo is changed.
Freq HZ: This permits LFO frequency to
be specified directly (in Hz). If this option
is enabled, the Frequency control will be
available. With this option, LFO speed is
completely unrelated to beat settings or
tempo and is unaffected by changes to
either of these.
ReSync LFO: The LFO can be restarted
or
resynchronized by various internal and
external events to help produce controlled
(or out-of-control) rhythmic effects. Upon
resync, the LFO waveform jumps to the
point determined by the Phase setting
(above).
There are four resync sources which can
be enabled singly or in any combination.
A switch Resync LFO permits LFO resync
enable/disable without the need to enable/
disable the individual sources.
Internal: This indicates an "internal" scan
restart. That is: in the course of normal
scanning, the arpeggiator has once again
returned to the "start" of its output pattern
– e.g., the lowest output note. The timing
of this event depends entirely upon the
captured chord and all relevant scan
settings. Correspondingly, it varies
dynamically as the chord and/or settings
are changed.
It should be mentioned that the
arpeggiator, as a device which responds
dynamically to its input and its settings,
does not actually "know" in advance when
an internal scan restart will occur, but
merely detects this
when it occurs. This
means that LFO resync in response to
internal scan restart occurs just barely
too late to have an effect upon the "first"
or scan restart note sent out by the
arpeggiator – instead, the resynchronized
LFO is applied starting with the
subse-
quent output note. This is not an issue
with the other LFO resync sources.