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Chapter 6: Modulation and Envelopes
160 ANDROMEDA A6 REFERENCE MANUAL
Positive Values: If KEYTRK and RELMOD are set to 100, the envelope stage times will
double in speed with each octave above Middle C, and halve in speed with each
octave below Middle C.
Negative Values: If
KEYTRK and RELMOD are set to -100, the envelope will double in
speed with each octave below Middle C, and halve in speed with each octave above
Middle C. Negative values have reverse effect of positive settings.
LOOP Page Parameters
Each of the three envelopes has the ability to loop – repeat selected stages over and
over. The parameters in the Loop page allow you specify how the loop behaves:
• When it starts: as the envelope proceeds through its stages – according to the
settings in the
TIME, LEVEL, TRIG and DYN pages – you select the stage of the
envelope when looping starts. As an example, you can set the envelope to
start looping when the
DECAY 2 stage is complete, as shown in the illustration
below.
• Where it starts looping: once the loop is instructed to start, you specify the
stage of the envelope where the loop begins. As an example, you can set the
loop’s start point to be the
ATTACK stage, as shown in the illustration below.
• How the looping continues: you can instruct the loop to repeat a specific
number of times (from 1 to 240), repeat until you release the key (or a MIDI
Note Off is received), repeat as long as the Sustain Pedal is down, or cycle
infinitely.
MINIMUM
LEVEL
DELAY
TIME
DECAY 1
TIME
SUSTAIN STAGE
RELEASE 1 TIME
RELEASE 2 TIME
DECAY 2
TIME
AMPLITUDE
TIME
ATTACK
TIME
SUSTAIN LEVEL
LOOP
SMOOTH
TIME
LOOP
START
LOOP
END
LOOP
This example shows the loop path for the following parameters:
Loop
END = DECAY 2
Loop START = ATTACK
SMOOTH
Time = user selectable, shown above as about 2/3 of the Attack time.
SSHAPE = LINEAR
Envelope looping simply instructs an envelope to repeat a certain stage or stages.
You can set up a loop to repeat only one stage – for example
DECAY 1 – or up to all
available stages –
DELAY through RELEASE 1. The keywords here are available stages:
RELEASE 2 cannot be selected as a loop end stage.
In the following table of loop parameter descriptions, it’s important to understand