Руководство Пользователя для Clavia lead 2x

As described above, the envelope stays at the Sustain level until the key is released. It then falls back to 
zero level. The time it should take for this to happen is set with the Release parameter, which works just 
as the Decay, only it is not applied until you lift your finger off the keys.

• If you set Sustain to full level, the Decay setting is of no importance since the volume of the sound is 

never lowered:

• If you set Sustain to 0, the sound will become silent after the Decay phase is finished. With short 

Attacks moderate Decay times, this can be used to simulate the behaviour of a plucked string instru-
ment (guitar, piano etc) where the sound always decays to silence after a while: