Dave Smith Instruments TETR4, Руководство по эксплуатации

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external clock source, Tetra must be receiving MIDI clock messages in
order for the arpeggiator to run.
The tempo and note value are determined by the Clock Parameters.
Mode: see table —
Sets the order in which the arpeggiator plays notes.
Display Arpeggiator mode
Up
Arpeggiated notes play in ascending
order.
Down
Arpeggiated notes play in descending
order.
Up Down
Arpeggiated notes play in alternately
ascending and descending order.
Assign
Arpeggiated notes play in the order in
which they were struck.
On/Off: Off, On —
Turns the arpeggiator on and off. Turning it on will turn off
the Sequencer if it is on.
Sequence Parameters
Tetra features a 4 x 16 “analog-style” step sequencer that can generate four
separate sequence tracks of up to 16 steps each. Each of the 4 voices has its own
sequencer. Individual sequencer tracks can be routed to any standard modulation
destination (see the table on page 35). Using VCA Envelope as a destination, for
example, varies the volume of each step; a destination of Filter or Filter
Envelope Amount will produce different filter settings per step. Typically,
however, at least one sequence is routed to an oscillator to control pitch.
The sequencer is a “gated” sequencer. That is, a note must be played, either
from the P
USH
I
T
switch or via MIDI, in order for the sequence to be heard and
it will continue to play as long as the note is held (gated) .
Note: The P
USH
I
T
switch’s Toggle parameter enables notes (and,
therefore, sequences) to be latched on for sustained playback.
The Clock Parameters determine the note value/tempo of the sequencer. The
actual gate duration for each step is fixed at half the step time. Use the envelopes
to generate notes of longer or shorter duration.
One very useful way to modulate a parameter in sync with a sequence is using
LFOs with sync; LFO frequency runs from 0 to 150, after which you can select
the sync settings. A setting of 16 Steps for LFO Frequency with a Triangle wave
selected and routed to the filter will provide a clean filter sweep over a 16 step
sequence, perfectly in sync! This is much easier (and smoother) than
programming a filter sweep using sequence steps.