Korg wavestate Owner's Manual page 61

Envelopes
On: The envelope will start automatically at note-on. This is the default.
Off: The envelope will only start via the Trigger Source.
Note: The Trigger Source's value at note-on can cause the envelope to trigger instantly. If the Threshold is positive or
0, this will happen if the value is at or above the Threshold; if the Threshold is negative, this will happen if the value is
at or below the Threshold.
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