Digital pianos typically use analog sensors for their keyboard action, as opposed to digital sensors of a regular electronic keyboard and synthesizer. Some digital pianos incorporate actual hammers to better simulate a grand piano's touch. Instruments that less accurately simulate the feel of an acoustic piano may be described as semi-weighted, while those that are more accurate may be said to possess hammer action. Instruments with fewer keys, and those with keys that are unweighted (similar to electric organs and synthesizers) or not velocity-sensitive tend to be called electronic or digital keyboards rather than digital pianos. The keys are weighted to simulate the action of an acoustic piano and are velocity-sensitive so that the volume and timbre of a played note depends on how hard the key is pressed. Similar to a traditional acoustic piano, the defining feature of a digital piano is a musical keyboard with 88 keys. Digital pianos are often used in music schools and music studios as a replacement for traditional instruments. Some digital pianos can emulate other sounds besides the piano, the most common ones being pipe organ, electric piano, Hammond organ, and harpsichord. Like other electronic musical instruments, they can be connected to an amplifier or a PA system to produce a sound loud enough for a large venue or, at the other extreme, may be heard through headphones only. In addition, they do not need to be tuned, and their tuning can be modified to match the tuning of another instrument (e.g. While digital pianos may sometimes fall short of acoustic ones in feel and sound, their advantages include being smaller, weighing much less, and costing less than an acoustic piano. Others may be very simple, without a stand. Some digital pianos are designed to also look like an upright or grand piano. They also incorporate weighted keys, which recreate the feel of an acoustic piano. Digital pianos use either synthesized emulation or recorded samples of an acoustic piano, which are played through one of more internal loudspeakers. A digital piano in an upright piano form factorĪ digital piano is a type of electronic keyboard instrument designed to serve primarily as an alternative to the traditional acoustic piano, both in how it feels to play and in the sound it produces.
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