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The Audio package must be loaded each time a GNU Octave session is started:
pkg load audio
The Audio toolkit provides 3 main types of MIDI functionality:
These are functions that directly allow opening, sending and receiving MIDI messages.
Functions that provide a layer on top of the device functions for using MIDI controls.
Basic functions that allow read and write of MIDI files.
To read and write to a MIDI device, a MIDI device object must be created, using the name or id of a known MIDI device as provided by the mididevinfo function.
MIDI devices can then be read using the midisend and midireceive functions that use midimsg type to encapsulate the MIDI data.
% list the midi devices devs = mididevinfo % open a midi device, specifying the first input and output MIDI device dev = mididevice("input", devs.input{1}.ID, "output", devs.output{1}.ID) % receive data and echo it through the output port while true msg = midireceive(dev, 1); if !isempty(msg) midisend(msg); endif endwhile
An overview of the package can be displayed by running help audio
Help for each function can be displayed by help thefunctionname
ie:
help mididevice