Web MIDI API

SpessaSynth provides an easy way to connect physical MIDI Devices to it and back using MIDIDeviceHandler.

Tip

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Initialization

const MIDIHandler = new MIDIDeviceHandler();

The MIDI inputs as MIDIInputMap.

The MIDI outputs as MIDIOutputMap.

Initializes the connection to physical MIDI Devices.

MIDIHandler.createMIDIDeviceHandler();

The returned value is boolean, true if succeeded, false if failed.

Info

This function is asynchronous.

Connects a Sequencer instance to a MIDI Output, playing back the sequence to it.

MIDIHandler.connectMIDIOutputToSeq(output, seq);

- output - a MIDIOutput to connect to. - seq - a Sequencer instance to connect.

Disconnects all MIDI devices from the sequencer.

MIDIHandler.connectMIDIOutputToSeq(seq);

- seq - a Sequencer instance to disconnect.

Connects a MIDI Input to a Synthetizer instance, responding to all received messages.

MIDIHandler.connectDeviceToSynth(input, synth);

- input - a MIDIInput to connect. - synth - a Synthetizer instance to connect to.

Disconnects all MIDI Inputs from the Synthetizer instance.

MIDIHandler.disconnectAllDevicesFromSynth();

No arguments as this simply removes the onmidimessage property from the inputs.