LinPlug Octopus User Manual

Page 28

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Final Envelope Value = Initial Envelope Value * Keyboard Scaling *

Velocity Scaling.

If the Envelope Keyboard Level Scaling settings and the Envelope Velocity

Level Scaling settings are both set to 1.0 then the envelope is unaffected

(because 1 * 1 = 1 ). End Points and Curve Points within the KBD and VEL

envelopes are set in the same way as those for the main envelope. See

above for more information.

MIDI Modulation

Envelopes can be also modulated by an external MIDI controller. The

following controllers are available: <no ctrl>, Modulation Wheel, Pitch Bend,

Aftertouch (poly), Aftertouch (mono) Breath Ctrl, Foot Ctrl, Expression,

CC16 (Control Change 16), CC 17 (Control Change 17), CC 18 (Control

Change 18) and CC 19 (Control Change 19).

In this case, the MIDI controller values are first scaled to values between

0.0 and 1.0. The scaled result is the multiplied by the envelope's value to

produce the final envelope value. This process can be described

mathematically as follows:

Final Envelope Value = Initial Envelope Value * Keyboard Scaling *

Velocity Scaling * Scaled MIDI Controller

Value

Note that if, for example, you assign an envelope to the Modulation Wheel,

and no output is produced, make sure that the Modulation Wheel is not set

to 0.

TMP Sync

The TMP Sync (Tempo Sync) control enables the envelope to be

synchronised with the tempo of the host program. If the TMP Sync control is

switched OFF then the durations of each envelope portion are the durations

shown by the time scale at the bottom of the window. If the TMP Sync

control is switched ON then the duration of a quarter-note is equivalent to a

duration of 1.0 within the Envelope Editor. Note that a duration of 1.0 may

no longer be 1.0 seconds as the actual duration will vary according to the

tempo. Also note that when TMP Sync is switched on, the envelope's

KBD/VEL Rate Scaling is deactivated however any level scalings remain

active.

26

Manual

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