RAGNARÖK
Manual
Page 8
Filter Envelope & Volume Envelope Sections
The filter envelope generator and volume envelope generator are identical and hard-
wired to their respective destinations. The envelope generators are of the traditional
ADSR-type, meaning Attack, Decay, Sustain and Release. They can be switched from
ADSR to AD mode for percussive sounds.
Attack
Sets the attack-time of the envelope. This is basically the time it takes for the sound
to go to full volume and/or filter cutoff, from the start of a note.
Decay
The decay is the time it takes to 'fall back' to a lower level (of sustain), directly after
the 'attack' part reaches it's maximum level. Decay is used for example for percussive
and brass-like sounds, or anything that needs some sort of 'peak' in the sound or
volume.
NOTE: This setting is obviously only 'doing something' if 'sustain' is set to less then
100% (full right). If sustain is set to full, there is no level to 'decay to'.
Sustain
The sustain level is the level where the envelope will 'hold', after the two previous
stages, when a note is held for a longer time. You can set the sustain from 0%
(meaning 'no sustain' but sometimes useful) to 100% meaning the note is sustained
at it's maximum level of volume and/or timbre.
Release
The release time is the time it takes the envelope to 'fall back' to zero, after the
release of the note. It is used when we want a sound to (slowly) fade away when the
keys are released, instead of abruptly being 'switched off' after the note ending.
