Distinctive Features and Working Principle of Digital Piano

The digital piano is a musical instrument that is specifically designed to produce music like an ordinary acoustic piano. It resembles an acoustic piano in a way to play as well as the music created. Digital piano uses the already recorded vocal samples of an acoustic piano.

Digital piano contains loudspeakers through which the vocal examples are amplified. The weighted keys serve to produce a sound like an acoustic piano.

They are also reported to appear like a grand piano and the upright piano. Digital piano can be carried easily because of its low weight, smaller in size than acoustic piano as well as less expensive than certain pianos.

Moreover, the tuning is not necessary for digital piano because they are already customized. To produce the colossal sound, they are connected to an amplifier or maybe with a PA system. It is usually used in schools and studios to create music like traditional acoustic pianos.

Essential Features of Digital Piano

The stunning feature of the digital piano is the central musical board system containing approximately 88 keys. The keys are internally designed to play music like an acoustic piano, and the velocity and the volume of the sound produced depends upon the pressure through which key is pressed.

The musical instruments that present only a few numbers of cores are unweighted they cannot be called digital pianos, but we call them vital digital boards.

The digital pianos that can produce music sense somehow like acoustic pianos are called semi-weighted. On the other hand, if they stimulate exactly like acoustic pianos, then this is called hammer action. Some digital pianos contain hammers physically in it to produce hammer action.

Most of them have digital sensors incorporated in electronic keyboard and the synthesizer. Their function is similar to video game controllers that make them able to convert the velocity contribution.

Other Essential Features Of The Digital Piano are

  • Digital pianos have a firm grip on volume modifications. They possess a viable system of line out audio connection. The headphone is also of good quality.
  • They have an advanced sound system than ordinary pianos.
  • The MIDI is also present.
  •  The keys of digital pianos all lighted when there is a dark room. This unusual feature assists the user in learning the keys and in better playing the music.
  • Digital piano possess transposition.
  •  They are tuned already and are can be moved easily to any place.

Working Principle of Digital Piano

The working mechanism of a digital piano is not so simple. The musical sound that we have is produced by sampling process in a digital piano.

This feature lies in the ROM in the case of an acoustic piano. The vocal samples are present in the ROM. In the case of digital pianos, the vocal examples are created by using better quality microphones and the expensive preamps.

Several vocal samples are often accessible for one keystroke, which means a variety of sound can be produced with the same key in the digital piano.


The already stored samples are limited in the aspects of their intensity and volume. The critical feature of acoustic pianos is the trembler changes, but digital pianos are deficient in this ability.

They also need the harmonic tones which are created when different notes combine. Harmonic tones may also be produced by natural reverberation produces naturally by acoustic pianos.

The noise does not provide as in the case of acoustic pianos, for example, the sound creates by pedals and the coupled machinery and instruments as well as the parts associated with them.

The Resemblance With Acoustic Pianos

 The digital pianos having considerable resemblance with acoustic pianos have pedals like them, and they function in the same manner as in acoustic pianos. The pedal switches are found that resembles with the keys of a usual electronic keyboard and functions by pressing them.

The sustain pedal is the part of an acoustic piano that picks up and lifts the string and produces resonance and creates music by combining with the notes. High-Quality digital pianos can do this.


The first digital pianos were developed in the 1990s. At that time, the piano was not able to produce more than 32 or 65 notes. Later several modifications were made with the passage of time, and the advanced digital piano was developed with a variety of records.

The models like YAMAHA, Grand Hybrid and some other famous models require numerical input data to produce sound. The various sounds produced mainly depend upon the way, with which the key is pressed.

The advanced digital pianos can create string resonance, the natural vibration and specific other sound effects by the help of DSP (digital signal processing). Modeling technology is also essential in producing sound effects.

The Casio Privia is the type of digital piano, and it can provide sound b means of DSP instead of using sophisticated modeling technology.

The vibration can be created by the stage stimulation n in the case of digital pianos. The other effects like chorus effect, phaser effect and tremolo effect can be produced by DSP.

Other Important Instruments

Digital pianos can create a variety of timbres. The digital can produce an effect of different types of keyboards like grand piano electric piano and an upright piano. The various other pianos include Wurlitzer, Fender Rhodes and DX piano.

All of these pianos’ sound effects are found in digital pianos. It includes other essential keyboard features that lack in an acoustic piano. These features and instruments are harpsichord, clavichord, and the other one is the organ.

These pianos can also produce different sounds like a string ensemble. The digital ensemble pianos have the keyboard system like acoustic pianos and can provide the sound like them.


In digital pianos, MIDI connections are necessary because this feature makes them able to be controlled. They control several instruments and switches. The storage slot situated outside the digital pianos can save the data stored in MIDI.

By using this data, the keyboard can play the music by itself without the implementation of external input. In this way, the piano may function as a player piano. The composition of music can be controlled by sequencer found internally in the keyboards.

The digital pianos also equipped with a computerized system. Suitable and specialized software are found to operate the system. 

Types of Digital Pianos

1. Traditional Type

Traditional type digital pianos are like electronic pianos, but they are deficient in the lower part as in electric keyboards. Some traditional pianos, however, contain this lower part but this feature is not for all the digital, traditional pianos.

The conventional digital pianos now come with unique features; for example, the length is small. They can be placed with the wall instead of putting on the table, and the keyboard is not attached to it; instead, it is separate.

2. Upright Type

Upright type digital pianos have almost the same features as in the traditional type of digital pianos, but its physical appearance and the design matches with acoustic pianos.

This piano is used mostly in homes and is costly than the conventional digital keyboard. This type of pianos use wooden keys, but in some pianos, plastic keys are present in crucial boards.

3. Grand Type

This type of digital pianos is not usual and appears like a grand piano, internally as well as externally. The grand piano contains keys which produce a variety of sound notes and a better quality acoustic system than others.

The cabinet is like the strings found in the electronic keyboards. Grand piano has a variety of models now, but the cost of such pianos is high enough.

 4. Stage Pianos

The stage piano is the type of digital pianos that are often used in the concerts, during live performances and the studio in which sounds are recorded. They are not like acoustic pianos in but they show resemblance with the synthesizer.

The amplification system for sounds is not found in stage pianos. There is no loudspeaker to create loud music; this is, however, a limitation of stage pianos. The powered speaker is exposed to amplify the sound.

5. Portable Type

Portable type piano is a digital type, which is like stage pianos in instrumentations and sound production. Movable type digital pianos are used in homes, studio, as well as classrooms. Its most important features are less weight, the size is small, and the loudspeaker is found for sound amplification.

The keyboards are unique and can produce different sound notes. It is usually fixed or attached to the manuals. The keys used in the formation of digital pianos are often expensive. It can be of cost if the keys are cheap.

6. Hybrid Type

Hybrid type is a high-quality digital piano that contains already stored samples and produce unique sound notes.


Best Digital pianos are the advanced pianos that can produce sounds like acoustic pianos. It contains already stored samples that can be heard when the keyboard is operated. The sound amplification is done by the in-built loudspeakers found.

Digital pianos have various types depending upon their unusual features. A computer can manage some digital pianos through specialized software that is available.

Itis easy to use and function. Digital pianos equipped with various such instruments which the acoustic pianos lack mostly. It is preferred because of its astonishing abilities.

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