Yamaha PSR-I425

Create Original Sounds

20 PSR-I425 Owner’s Manual

cEG (Envelope Generator)

Envelope Generator effects determine how the level of the sound varies over

time. You can make the attack faster for a more percussive sound or slower

for a violin-like sound, for example. Or you can lengthen or shorten the sus-

tain to most ideally match the music.

Knob A adjusts attack time (the amount of time it takes the sound to reach

maximum level when a key is played).

Knob B adjusts release time (the amount of time it takes for the sound to

decay to silence after a key is released).

vStyle Filter

In this case the knobs apply the ﬁlter effect to the style being played. Knob A

and Knob B have the same functions as for “z Filter” described on the pre-

ceding page.

bStyle Tempo

Knob A adjusts the tempo of the style and arpeggios. Rotating the knob

clockwise increases the tempo while rotating it counterclockwise decreases

the tempo. The knob’s center position produces the initial default tempo.

Release TimeAttack Time

ATTACK

RELEASE

DECAY

Key Played

Sustain Level

Key Released

Time

Level

Filter ResonanceFilter Cutoff

–No Effect–Tempo