Akai MPC 5000 Reference Manual page 123

„
This will open the 'Simultaneous Play' tab.
You can select different pads by selecting the pad with the [DATA] wheel, or you can
select a pad by hitting it while the cursor is in this field.
Select the first pad you would like to be triggered simultaneously with the pad selected in step 03.
Repeat the process for 'Simult:' numbers two through four.
Now, hitting the pad selected in step 3 will play the pads listed in 'Simult' 1-4 as well as its own sound. Note that if one of the other pads are
struck, the other pads do not play. Only the pad selected in step 3 will trigger the other pads. This can be used to play extremely difficult
percussive parts with ease.
„
The Amp Envelope window will be displayed
The selected pad will be displayed.
This field sets the amount of silence that will be played before
triggering a sample; the larger the value, the longer the delay.
You can set the sample's attack time in this field. The larger
the value, the longer it will take for the sound to start. (Fade
in)
This field sets how long a sound will fade out before the sound enters the Sustain part of the envelope.
This parameter is the level that the sample reaches when the decay portion is finished. This parameter has no effect on
samples set to ONE SHOT.
This parameter determines the time it takes for the 'Sustain Decay' stage to drop to zero. If this parameter is set to 100,
the envelope will sustain for as long as the key is held down. This parameter has no effect on samples set to ONE SHOT.
This sets the amount of time the envelope will take to get from its current level to zero after the note has been released.
The higher the number, the longer it will take to fade out.
You can control the sample's attack time by velocity. The larger you set the value, the slower the sound will start by
velocity. If you set this field to 0, the attack time is constant , regardless of the velocity.
You can control the sample's start point by velocity. The larger you set the value, the bigger delay the sample start point
will be by velocity. If you set this field to 0, the sample start point is constant, regardless of the velocity.