Yamaha VL-1 Feature Reference page 148

Feature Reference
keyboard velocities will increase the envelope rates and low keyboard velocities will
decrease the rates. The higher the value the greater the effect of keyboard velocity on the
envelope rates.
Depth To Amplitude
Determines how deeply the Amplitude & Filter envelope will affect amplitude. The
higher the value the greater the effect.
Depth To Filter
Determines how deeply the Amplitude & Filter envelope will affect the cutoff
frequency of the Dynamic Filter. The higher the value the greater the effect. Negative
values invert the effect of the envelope on the filter.
The parameters in this page set the actual "shape" of the envelope used for ampli-
tude and filter control. The parameters correspond to the envelope as shown in the
diagram below.
Max.Level
(fixed:127)
Level:
Attack1
Level:
Sustain
Key on
Rate: Attack1
Determines the rate at which the envelope level goes from "0" to the level set by
the "Level: Attack1" parameter. The higher the value the faster the attack.
Rate: Attack2
Determines the rate at which the envelope level goes from the level set by the
"Level: Attack1" parameter to maximum level. The higher the value the faster the
attack.
Edit Mode
The Envelope Parameters
Rate:
Decay
Rate:
Attack2
Rate:
Attack1
Time
Rate:
Release
Key off