Envelope Editor
Overview
Adjust the three envelopes for the selected instrument. The red envelope controls the volume or amplitude of the note. The green controls the pitch and the blue controls the frequency cutoff. When using hand drawn waveforms the cutoff will vary with the frequency of the note. When using MIDI commands to trigger notes the note played will have a minimum length that is specified by the "end" waveform position. The maximum length of the envelope is four note steps. If the note is longer than 4 note steps the sustain portion of the envelope will be looped.
The pitch envelope changes scale based on whether the waveform currently being used is hand drawn or and imported wave. If the waveform is hand drawn the pitch is scaled non-linearly between plus and minus an octave. If the waveform is an imported wave, then the pitch is scaled linearly between 3x speed and reverse 1x speed (i.e. if the pitch envelope is set to zero, the the waveform is played backwards at regular speed.)
HotKeys
D - Average envelope.
F - Step envelope.
Z - Display amplitude envelope.
X - Display pitch envelope.
C - Display frequency cutoff envelope.
Features
1. Envelope Buttons - Select which envelope to use.
- Left click - Select envelope.
2. Envelope - Draw envelope.
- Left click and hold - Draw envelope.
- Left click and control key - Draw straight line.
- Right click - Reset envelope.
- "D" - Average envelope.
- "F" - Step envelope.
3. Display Amplitude Envelope - Select the amplitude envelope.
- Left click - Select amplitude envelope.
- "Z" - Select amplitude envelope.
4. Display Pitch Envelope - Select the pitch envelope.
- Left click - Select pitch envelope.
- "X" - Select pitch envelope.
5. Display Cutoff Envelope - Select the frequency cutoff envelope.
- Left click - Select frequency cutoff envelope.
- "C" - Select frequency cutoff envelope.
6. Envelope Sustain Start - Select the start position for the envelope sustain.
- Left click and hold - Adjust the start position for the envelope sustain.
- Right click - Reset parameters to their initial values.
7. Envelope Sustain End - Select the end position for the envelope sustain. If the note is longer than the envelope the sustain portion of the envelope will be looped.
- Left click and hold - Adjust the end position for the envelope sustain.
- Right click - Reset parameters to their initial values.
8. Envelope End - Select the end position for the envelope.
- Left click and hold - Adjust the end position for the envelope.
- Right click - Reset parameters to their initial values.
Copyright 2001, C. Lawrence Zitnick