System information

33
Tempest Operation Manual
Envelopes
Envelopes
Tempest has ve six-
stage DAPDSR (delay/
attack/peak hold/decay/
sustain/release) envelope
generators for each of its
six voices. Two of the
envelopes are “hard wired” to specic destinations: low-pass lter and amplier
(VCA). The PitCh envelope uses All Oscillators as a default destination, but it
can be changed. The two auxiliary envelopes are assignable to any modulation
destination. (For a complete list, see “Modulation Destinations” on page 71.)
Additionally, any of the envelopes can modulate any destination using the modu-
lation paths. (See “Modulation Paths” on page 37.)
The envelopes can also be switched to a two-stage APD (attack/peak hold/decay)
type suited to percussive sounds simply by turning
ad Mode on.
Envelope Generators: Pitch, Lowpass, Amp, Aux1, Aux2— Choose one of
the ve envelope generators to edit.
AD Mode: Off, On— Percussive sounds typically have a fast attack and then
decay to silence with no sustain. When ad Mode is on, only the attack and
decay portions of the envelopes are used, hence “AD.” ad Mode affects all ve
envelopes.
AD Mode is effectively the same as setting
SuStain to 0 and ReleaSe to the same
value as deCay, so the same effect can be achieved when ad Mode is off.
Delay: 0...127— Sets a delay between the time the envelope is gated on and
when the attack portion actually begins.
Attack: 0...127— Sets the attack time of the selected envelope.
Peak: 0…127— Peak is short for peak hold. Normally, the decay stage of the
envelope begins immediately after the attack stage reaches its ultimate value.
Peak briey holds the envelope at its peak value, delaying the transition from
attack to decay. This can add extra punch to a Sound’s attack.
Decay: 0...127— Sets the decay time of the selected envelope.