Yamaha P-150 Internal Equalizer, Reverb, Modulation

Velocity Curves

The P-150 has 10 different types of sensitivity settings for

both internal voices and external MIDI instruments,

organized in four categories: Normal, Soft-1~3, Hard-1~3,

and Fixed-1~3.

These give you wide and flexible control over how the

strength of your playing affects the volume of the internal

voices and external MIDI instruments.

❏ NORMAL

The P-150’s Normal setting represents the standard linear “velocity-

to-volume” relationship.

On a conventional acoustic instrument such as an acoustic piano,

the harder you play, the louder the resulting sound. Generally, this

velocity-to-volume relationship is linear, i.e., the sound becomes

louder in direct proportion to the strength with which you play, as

shown in the following graph.

❏ Soft-1, Soft-2, Soft-3

The Soft curves are designed to increase the level of the

sound with a softer playing style.

❏ Hard-1, Hard-2, Hard-3

The Hard curves are designed to increase the level of the

sound with a stronger playing style.

❏ Fixed-1, Fixed-2, Fixed-3

The Fixed curves create flat velocity response. The volume

of the sound remains the same, no matter how softly or

strongly the keys are played.

■Internal Equalizer

The Internal Equalizer function lets you adjust the volume of

the low, middle and high EQ ranges for the currently

selected internal voice.

● EQ (Low, Mid, High)

You can boost (increase) or cut (decrease) the volume of each

range independently, with -16 representing maximum volume

cut, 16 representing maximum volume boost, and 0 representing

normal volume. (The default for each voice is 0.)

■Reverb

When the P-150 is in Edit mode, pressing [REVERB]

accesses the Reverb Type and Depth settings for the

currently selected voice.

● REVERB TYPE (Room, Stage, Hall, Off)

You can select one of the three reverb types for the currently

selected voice or turn the reverb off.

● DEPTH (0 ~ 7)

You can set the reverb depth value between 0 (no effect) and 7

(maximum effect).

You can also access the Reverb Type and Depth parameters in Voice

Play mode (see page 22).

■Modulation

When the P-150 is in Edit mode, pressing [MODULATION]

accesses the Modulation Type and Speed settings for the

currently selected voice.

● MODULATION TYPE (Chorus, Symphonic,

Tremolo, Off)

You can select one of the three modulation types for the

currently selected voice or turn the modulation off.

● SPEED (0 ~ 7)

You can set the modulation speed value between 0 (no effect)

and 7 (maximum effect).

You can also access the Modulation Type and Speed parameters in

Voice Play mode (see page 23).

EDIT MODE

EQ LOW= 0 1

REVERB TYPE 1

T=room D=4

Reverb type Depth

MOD. TYPE 1

T=tremolo S=2

Modulation type Speed

Volume

Max.

Min. Soft Hard Velocity

(playing strength)