MIDI ISE 599 Yun-Ching Chen. Overview Musical Instrument Digital Interface Came in 1983, conceived by a consortium of synthesizer manufacturers A serial.

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Presentation transcript:

MIDI ISE 599 Yun-Ching Chen

Overview Musical Instrument Digital Interface Came in 1983, conceived by a consortium of synthesizer manufacturers A serial protocol for representing digital music format A MIDI message is a packet of data that fully specifies an event

MIDI Messages Channel messages Channel Voice messages Channel Mode messages System messages System common messages System real-time messages System exclusive messages

MIDI Messages (cont.) Status ByteData BytesMessage 0x8nNOTE,VELNote Off 0x9nNOTE,VELNote On 0xAnNOTE,PRESUREKey Aftertouch 0xBnCTRL,VALUEControl Change … n=channel, 0 for channel 1, F for channel 16 Channel Voice messages:

Java MIDI Package MidiSystem getSequence(file), getMidiFileFormat(file) Sequence Track getTracks(), MidiEvent.get() MidiMessage getMessage(), getStatus()

Example F:\>java MidiTestor Happy.mid Track0 Track1 channel= 0 ; Pitch= E5 ; Duration= 94 ; channel= 0 ; Pitch= F#5 ; Duration= 160 ; channel= 0 ; Pitch= E5 ; Duration= 160 ; channel= 0 ; Pitch= A5 ; Duration= 160 ; channel= 0 ; Pitch= G#5 ; Duration= 160 ; channel= 0 ; Pitch= E5 ; Duration= 94 ; channel= 0 ; Pitch= F#5 ; Duration= 160 ; channel= 0 ; Pitch= E5 ; Duration= 160 ; channel= 0 ; Pitch= B5 ; Duration= 160 ; channel= 0 ; Pitch= A5 ; Duration= 160 ; Finish reading file Running MIDI file in Java

References Maximum MIDI – Music Application in C++, Paul Messick MuseInfo for MIDI: Javax.Sound.Midi d/midi/package-summary.html