Owner`s manual

If you are creating a percussive sound such as piano, guitar or a drum
sound then use the One Shot setting. If you are creating a 'Break Beats' or
'Drum Loop' sound, then use the All setting.
To set the type of loop (One Shot or All) simply click on the pull down
menu and make your selection:
You can select from three options to alter how the sound performs while
you hold a note. This in synthesizer terms would be described as Amplifier
Envelope. The three options are:
Sus (sustain)
The wave plays as normal.
Decay short & mid & long
The wave dies away like a percussive sound,
even if it is a sustained type sound like and organ
To set the Amp Envelope simply click on the pull down menu and make
your selection:
There are two options of Filter Envelope, which will be very useful
depending on the type of sound you are using. Filter Envelope is a
synthesizer like function that makes the sound get mellower over time as
you hold a note:
Touched
The amount of Filter Envelope changes
depending on velocity. Hitting the key harder
will result in the Filter Envelope closing more
slowly, with the effect that the sound will stay
brighter for longer. Very useful for percussive
sounds such as Piano and Guitar
Fixed
The Filter Envelope is preset and not affected
by velocity.