104
E-MU Systems
Programming Basics
Envelope Generators
Tempo-based Envelopes
Tempo-based envelopes are based on
Time
which is controlled by the
Master Tempo
(located in the Global menu)
. The Master Tempo rate scales the
time of the Tempo-based envelope segments. The Master Tempo can be set
to use an external MIDI clock so that the envelope times can be synchro-
nized to external sequencer or arpeggiator tempo changes. See page 82.
Envelope Repeat
The Envelope Generators can also be made to repeat. When the envelope
repeat function is On, the Attack (1&2) and Decay (1&2) stages will
continue to repeat as long as the key is held. As soon as the key is released,
the envelope continues through its normal Release stages (1 & 2).
Only the Filter and
Auxiliary Envelopes have the
repeating feature.
The diagram above show how the looping envelopes work. When the key is
pressed the envelope goes through its regular Attack 1, Attack 2, Decay 1
and Decay 2 stages. In non-looping mode, the envelope would hold at the
end of the Decay 2 stage until the key was released. In looping mode
however, it jumps back to the Attack 1 stage and repeats the first four
stages. It continues to loop through these four stages until the key is
released where it immediately jumps to the Release 1 stage.
= Initial Setting
= Increase Master Tempo
= Decrease Master Tempo
Tempo-Based Envelopes
Atk1
Atk2
Dcy2
Dcy1
Rls1
Rls1
Key Down
Key Released
time
level
Repeat
Re..
