MIDI is an industrial standard electronic communication protocol, which defines various notes or performance codes for electronic musical instruments and other performance devices (such as synthesizers), allowing electronic musical instruments, computers, mobile phones or other stage performance devices to connect, adjust and synchronize, thus exchanging performance data in real time.
MIDI does not send sound, but only sends data such as tone and music intensity, control signals for parameters such as volume, vibrato and phase, and clock signals for setting rhythm. On different computers, the output sound is different due to different sound sources.
MIDI performance control protocol is the industry standard of MIDI, which was formulated by MIDI industry association in 199 1. It allows different kinds of media control devices to communicate with each other, and with the help of computers, it can perform performance control functions and entertainment applications on the spot. Like music MIDI, MSC does not transmit the actually displayed media, but only transmits instructions about multimedia performance.
Now almost all recording projects use MIDI as the key open technology to record music. In addition, MIDI is also used to control hardware including recording equipment, such as stage lighting, effector pedals and other high-performance equipment. In recent ten years, MIDI has entered the field of mobile phones. MIDI is used to play ringtones that support MIDI. MIDI can also provide background music for some video games and computer games.
MIDI makes computers, synthesizers, sound cards and electronic musical instruments (electronic drums, electronic organ, etc.) possible. ) to control and exchange messages with each other. Now the sound cards of computers are MIDI-compatible, which can simulate the sound of musical instruments realistically. Many music file formats are based on MIDI files. These formats can be said to be electronic music scores that electronic instruments are watching, so usually a file only needs tens of KB, so that electronic instruments can play a very complete song.
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Advantages-
1, MIDI standard protocol was founded in the early stage of 1980, which brought several obvious advantages to musicians, recording musicians and music lovers.
2. * * * Language and grammar: keyboard instruments, electronic drums, computers, arrangers and other electronic instruments with special functions designed for MIDI can be easily linked with each other.
3. Simplify the link: reduce the complexity of the link between the wires and signal wires of music equipment (such as volume control).
4. Few performers: From 65438 to the early 1980s, only one or two musicians could perform live performances and operate several MIDI devices at the same time, creating a performance effect similar to a symphony orchestra.
5. Lower barriers to entry: Users can create, edit and produce high-quality digital music with less cost. Professional musicians can record their own records at home, without paying for the recording studio or asking a bunch of musicians to help them record. At the same time, it also allows lovers who have no music foundation to use MIDI music software for high-quality recording.
6. Portable electronic music equipment: It greatly reduces the number of musical instruments, equipment and wires that musicians need to carry when touring, and it is much easier to carry, load and erect equipment, but it can still produce considerable timbre and effect.
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