![]() The corresponding master instrument or sequencer track should have been set to the same channel as the receiving subsystem. The MIDI channel select function is comparable to tuning a radio or television set to the desired channel. One MIDI hardware link, therefore, is able to carry sixteen MIDI channels.įor MIDI reception, a sound-generating subsystem (roughly equivalent to one instrument in a band) may usually be set to attend to performance messages on any one of the sixteen MIDI channels. All Channel Voice messages are tagged with a MIDI Channel number, so that one MIDI link can, seemingly simultaneously, carry up to sixteen independent parts or lines of musical performance. The MIDI commands designed to control sound-generating voices (including, for example, Note on and Note off) are called Channel Voice messages. In the sphere of electronic music, however, the term MIDI channel has a quite specific meaning, and does not normally refer to a MIDI hardware link. MIDI channelsĪ channel is very generally a route of communication or access. There is also a brief discussion of some issues related to how sequencers handle MIDI channels. The description starts with the four ancillary Mode commands: this is followed by the four proper Mode commands, Omni Off, Omni On, Mono On, and Poly On, The subsequent section describes the MIDI Modes themselves: that is, the four "true" MIDI Modes ( Mode 1, Mode 2, Mode 3 and Mode 4) and the real world of Multi Mode.Ī discussion of sequencer tracks is included in this document mainly to make clear the distinction between tracks and MIDI channels. ![]() MIDI Modes are instigated by special MIDI Channel Mode messages, which are individually described. ![]() The subject of MIDI Modes is introduced in the section about voice allocation and Channel Modes. The same section explains the term multitimbral (or multi-timbral). ![]() ![]() The subsequent section covers the subject of programs and timbres a timbre is also known as a patch, and in MIDI roughly corresponds to a Program. This is followed by a description of polyphony and voices, which explains the terms polyphonic and monophonic. This web page starts off with an introduction to MIDI channels, including the special role of the Basic Channel. MIDI channels, voices, timbres and Modes by Phil Rees ![]()
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