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MIDI beat clock, or simply MIDI clock, is a clock signal that is broadcast via MIDI to ensure that several MIDI-enabled devices such as a synthesizer or music sequencer stay in synchronization. Clock events are sent at a rate of 24 pulses per quarter note .
General MIDI 2 compatible synthesizers access all of the 256 instruments by setting cc#0 (Bank Select MSB) to 121 and using cc#32 (Bank Select LSB) to select the variation bank before a Program Change. Variation bank 0 contains the full GM — that is, General MIDI 1 — sound set.
This new packet format supports a total of 256 MIDI channels, organized in 16 groups of 16 channels; each group can carry either a MIDI 1.0 Protocol stream or new MIDI 2.0 Protocol stream, and can also include system messages, system exclusive data, and timestamps for precise rendering of several simultaneous notes.
MIDI melodic channels 8 15 15 [a] 16 combined 32 combined (on 2 ports) 64 combined (on 4 ports) 14 16 combined Rhythm/percussion channels 1 1 (#10) 1 2 (#10 & #11)
No. of channels Clock rate (Hz) [note 1] Frame size (byte) Default packet interval (ms) Description References 0 PCMU audio 1 8000 any 20 ITU-T G.711 PCM μ-Law audio 64 kbit/s RFC 3551 1 reserved (previously FS-1016 CELP) audio 1 8000 reserved, previously FS-1016 CELP audio 4.8 kbit/s RFC 3551, previously RFC 1890 2
In MIDI, the instrument sound or "program" for each of the 16 possible MIDI channels is selected with the Program Change message, which has a Program Number parameter. The following table shows which instrument sound corresponds to each of the 128 possible GM Program Numbers. [3] There are 128 program numbers.
The MIDI Show Control protocol is a technical standard ratified by the MIDI Manufacturers Association in 1991 which allows entertainment control devices to talk with each other and with computers to perform show control functions in live and prerecorded entertainment applications. Just like musical MIDI, MSC does not transmit the actual show ...
Electronic musical instruments, including synthesizers, samplers, drum machines, and electronic drums, which are used to perform music in real time and are inherently able to transmit a MIDI data stream of the performance. Pitch-to-MIDI converters including guitar/synthesizers analyze a pitch and convert it into a MIDI signal. There are several ...