Steinberg HALION4 Mode D'emploi page 125

Phase
This sets the initial phase of the waveform when the LFO is retriggered.
Rnd (Random)
When this is activated, each note starts with a randomized start phase. The Phase
control is automatically disabled.
Delay
Delay determines the delay time between the moment you play a note and the moment
the LFO comes into effect.
Fade In
Fade In determines how long the LFO takes to fade in after the note was triggered
and the delay time has elapsed.
Hold
Hold determines the amount of time the LFO is running before the fade out begins.
Use the envelope modes "One Shot" or "Hold + Fade Out" to activate the Hold time.
With all other envelope modes, the Hold time is omitted and acts as Sustain.
Fade Out
Fade Out determines how long the LFO takes to fade out after the hold time has
elapsed or a note has been released.
Use the envelope modes "One Shot + Sustain" or "Sustain" to deactivate the fade
out. This prevents changes of the modulation when the note has been released.
Inv (Invert Envelope)
When the Inv option is activated, the behavior of the LFO envelope is inverted. The
LFO modulation starts at its maximum level and decreases to zero in the time
specified by the Fade In. After the Hold time has elapsed, or when the key is released,
the modulation increases to its maximum level in the time specified by the fade out.
Envelope Mode
Here, you can specify how the LFO envelope reacts to your playing on the keyboard.
The One Shot modes do not react to note-off events. In addition, you can select
whether the Hold and Fade Out segments act as sustain.
Option
One Shot
One Shot +
Sustain
Hold + Fade Out
Description
Select this mode to play the envelope from start to end in the time
specified by Delay, Fade In, Hold, and Fade Out.
This mode is similar to One Shot. The Delay and Fade In parameters
are always applied when you play a note. The Hold and Fade Out
parameters are not taken into account. Instead, they act as sustain.
When you play a note, the Delay and Fade In parameters are
applied. The envelope fades out after the time specified by the Hold
parameter, or when a key is released. Releasing a key during the
fade in starts the fade out from the current level.
125
Editing Zones in the Sound Editor
The LFO Section