Features
First of all, electronic musical instruments are different from traditional musical instruments. It has a special electronic sounding body with obvious characteristics. The pronunciation bodies of traditional musical instruments are basically strings, membranes, springs, plates or metal bodies. For example, the violin, huqin and stringed instruments all make their sounds by mechanical waves of strings; the gongs and drawn instruments make their sounds by the mechanical waves of metal bodies. Although electric guitars and electric basses also need to be energized, their sound bodies are still strings, so they are classified as electro-acoustic musical instruments rather than electronic musical instruments.
The sound body of an electronic musical instrument is a converter composed of several electronic components. Through voltage amplification, different wavelength changes produce different sounds, and then the power is amplified, and a specific sound is transmitted by the speaker.
Secondly, in general, many traditional musical instruments are affected by natural weather conditions to varying degrees. For example, bamboo flutes will have differences in environments with different temperatures; drums or stringed instruments will also change due to humidity. Electronic musical instruments are generally not affected by natural climatic conditions, they are only affected by factors such as voltage, current, or the quality of electronic components (the possibility of this phenomenon in regular electronic musical instruments is extremely small).
Again, although a traditional musical instrument can simulate human singing and the pronunciation of other musical instruments, it is still the sound of a single instrument. Electronic musical instruments can express a single tone or a composite tone by changing the audio output.
Category Application Fields
Electronic musical instruments have experienced the development stage of electronic tubes, semiconductors and integrated circuits composed of several different materials. Most common electronic musical instruments use integrated circuits. There are many types of electronic musical instruments, and the most used are electronic pianos and various synthesizers with MIDI functions.
There are many kinds of electronic organs (Electronic Organ abbreviated as EO). The most common one is electronic organs, also known as vertical electronic organs. It has two or three rows of upper keyboard (for playing melody or chord), one row of foot pedals (for playing Arima), equipped with a power amplifier system and speakers, which can emit enough volume. Mainly used for stage solo, accompaniment, or for the production of recording studios, film and television programs.
Another type of electronic organ, generally called a portable electronic organ. The portable electronic keyboard only has a single keyboard and is not equipped with a power amplifier system. The range is generally in the range of 4 octaves or 5 octaves. Because of its convenient portability, wide adaptability and moderate price, it is more popular in my country. Often used in small electroacoustic bands, music teaching in primary and middle schools, etc.
Electronic Piano (Electronic Piano abbreviated as EP) is a new variety of electronic piano that has appeared in recent years. Due to the focus on the improvement of the piano touch strength of the monopoly piano, as well as its pure tone and easy to carry characteristics, it is replacing traditional pianos and appearing in modern music life.
The electronic synthesizer (Synthesizer abbreviated as SY) is abbreviated as a synthesizer, and is a new generation of electronic musical instruments born in the mid-sixties. Its main function is to produce hundreds of tones, dozens of rhythm patterns and effect electrical signals. Common electronic synthesizers are Japanese YAMAHA, ROLAND and other series products. From the perspective of electronic synthesizer components, there are mainly signal generation, signal modification, signal control and external connection systems. There are two basic methods of synthesis: additive synthesis and subtractive synthesis.
Electronic synthesizers generally have MIDI functions. They can be used to perform alone or connected to a computer to form a part of a computer music system.
The electronic synthesizer used has two types: keyboard type and modular type. The keyboard synthesizer looks like a portable electronic piano, and the modular synthesizer is actually a "sound source" used to provide sound.
Keyboard synthesizers generally have 49 keys (four octaves) and 61 keys (five octaves) in two styles. It has internal storage timbre signals, and different timbre cards (external storage timbre signals) can also be appropriately selected. The frequently used tones are mainly piano, organ, strings, brass, woodwind, percussion, vocals, nature and fantasy.