乐器数字接口/Yue4 Qi4 Shu4 Zi4 Jie1 Kou3
The Musical Instrument Digital Interface or MIDI protocol has been variously described as an interconnection scheme between instruments and computers, a set of guidelines for transferring data from one instrument to another, and a language for transmitting musical scores between computers and synthesizers.
MIDI was designed for real-time control of music devices. The MIDI specification stipulates a hardware interconnection scheme and a method for data communications. It also specifies a grammar for encoding musical performance information. MIDI information is packaged into small messages sent from one device to another. For example, a message can specify the start and stop time of a musical note, its pitch, and its initial amplitude. Another type of message, transmitted at regular intervals, conveys ticks of a master clock, making it possible to synchronize several MIDI instruments to a sequencer that emits these messages.
Every MIDI device contains a microprocessor that interprets and generates MIDI data. Not every MIDI setup needs a separate computer, although there are many advantages to including one.
(Source: Curtis Roads, The Computer Music Tutorial. MIT Press. 1995)
MIDI is an abbreviation for Musical Instrument Digital Interface, which designates the standard protocol for communication between electronic instruments and equipment with MIDI implementation. This has proven to be of particular interest within electroacoustic music in the areas of sequencing, triggering and controlling. MIDI Devices allow for the sending and receiving of MIDI protocol messages. MIDI Interfaces enable MIDI instrument connection to a computer, which allows for computer control of other MIDI equipment. MIDI Controllers are potentiometers or other means available on MIDI synthesizers, which can be used to influence sonic parameters through MIDI messages e.g., a breath or foot controller, modulation wheel.
a language of instruction information, designed to allow pieces of musical equipment to communicate with one another. MIDI information is information about action to be taken (for example the instruction to play a specific note) and not that action itself. (In this way MIDI information might be considered as similar to written notation. It is instruction to make sound and not the sound itself (a synthesiser or instrumentalist must be able to receive the instructions and to follow them out to make the sound).
MIDI is an acronym so should always be written with capital letters. It stands for Musical Instrument Digital Interface.
术语顾问/Consultant to terminology