Casio AP-650M Instrukcja Użytkownika Pobierz pdf (Strona 6)

10 11

Fast key release

Slow key release

String struck

The size of the hammers

that strike the strings differ

among key blocks.

Key struck

Keyboard touch

Low notes

Heavy

Light

High notes

3a2

Natural Feel and Piano Response

Three sensors are installed to match a grand piano’s keyboard action.

The period of time between a keystroke being detected and the sounding

response occuring is controlled by the strength of the keystroke. Sounding

occurs when playing ends.

When striking a key, three sensors detect the action sequentially.

Tri-Sensor Scaled Hammer Action

Keyboard II means unique grand

piano timing and sound (Fig 1).

The difference between the sound

structures of a grand piano and a

digital piano often centres upon

the difference in timing. The

new Tri-Sensor Scaled Hammer

Action Keyboard II responds by

incorporating a system with three

sensors that detect keystrokes

sequentially. This ensures meticulous

variations in the detection time of a

keystroke and sound production,

as well as enabling a sound to be

produced continuously, even when

the key has not fully returned to its

resting position, a feature assuring

excellent playability when the same

note is struck repeatedly.

2. Hammer Response

Hammer Response reproduces

accurate sound-timing balance (Fig 2).

The size of the hammers differ among

the various key blocks in a grand piano.

The sound timing consequently varies

subtly, even when keys are struck

with the same strength. The new

Casio piano keyboard system carefully

reproduces these differences in sound-

production timing and force from one

3. Key Off Simulator

Key Off Simulator* reproduces the tonal

variations resulting from ﬁnger release

(Fig 3a, 3b).

The lengths of the reverberations and

expressions a piano produces vary

depending on the speed at which

players release their ﬁngers after

touching the keys. The new keyboard

system incorporates a Key Off

Simulator that naturally reproduces

these nuances resulting from key

release. As a result, authentic

reverberations that feel just like those

of a grand piano are expressed.

1. Tri-Sensor Scaled Hammer Action Keyboard II

* PX-860, AP-650M and AP-460 models

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