41
Synth and Ensemble Envelopes
These envelopes are not gateable modulators like other envelopes in DCAM
Synth Squad – they can only be gated by keyboard input. They have two distinct
functions:
1. They are used to determine the envelope shape of the 96 amp envelopes for
each paraphonic note in the Synth and Ensemble sections.
2. While the paraphonic envelopes are not available in the TransMod system
because it only operates at the polyphonic voice level, polyphonic copies of
the Synth and Ensemble envelope shapes are available as sources in the
TransMod system to provide extra modulation envelopes. In conventional
single-voice paraphonic usage, these polyphonic envelopes are effectively
monophonic like the ModEnv, and are gated polyphonically.
Synth envelope
The Synth envelope features
Atk
(
Attack
),
Dcy
(
Decay
),
Sus
(
Sustain
) and
Rel
(
Release
) parameters, which operate in
the same way as those in the Mod Envelope (see section 7:5 for details of the ADSR stages).
It does not possess the Sync, Loop and Linear parameters of Mod and Amp envelopes.
Ensemble envelope
The Ensemble envelope operates quite differently to the ADSR envelopes found elsewhere in DCAM: Synth Squad. It is
an Attack-Release (AR) envelope with optional sustain.
• When a key is gated, the envelope output rises from 0 to 1 over the defined
Atk
(
Attack
) time.
• If the
Sus
(
Sustain
) button is enabled, the output stays at 1 while the key is held down.
• If it is disabled, or when the key is released during
Sustain
mode, the envelope’s level falls to 0 over the time defined by
the
Rel
(
Release
) parameter.
Glide
Conventional pitch glide is not possible in Amber, because the the divide-down oscillator system constantly generates
each key at its exact root pitch.
However, pitch glide signals can still be used with other parameters via the TransMod system, by means of the Pitch
modulation source. This modulation can only occur polyphonically (monophonic for each voice).
Similarly, Velocity Glide also works on the polyphonic level.
For more details of the
Pitch Glide
and
Vel Glide
functions, see sections 6:3 and 7:6.
Keytracking (modulation from keyboard pitch)
Direct routings: Paraphonic 1-pole tone filters in Synth and Ensemble sections (fixed at 100% depth)
Keytracking is modulation from the pitch of the keyboard. The value of the pitch modulation source increases by 1 over
each octave.
The cutoff frequencies of the paraphonic 1-pole HP and LP tone filters in the Synth and Ensemble sections are directly
keytracked. The Pitch modulation source can be used in the TransMod system to keytrack any other parameter. However,
this will occur polyphonically (monophonically per voice) rather than the paraphonic direct keytracking of the 1-pole filters.
See section 7:7 for more details about keytracking.
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