Experimental
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The MIDIAccess
interface of the Web MIDI API provides methods for listing MIDI input and output devices, and obtaining access to those devices.
Properties
MIDIAccess.inputs
Read only- Returns an instance of
MIDIInputMap
which provides access to any available MIDI input ports. MIDIAccess.outputs
Read only- Returns an instance of
MIDIOutputMap
which provides access to any available MIDI output ports. MIDIAccess.sysexEnabled
Read only- A boolean attribute indicating whether system exclusive support is enabled on the current MIDIAccess instance.
Event Handlers
MIDIAccess.onstatechange
- Called whenever a new MIDI port is added or an existing port changes state.
Examples
navigator.requestMIDIAccess()
.then(function(access) {
// Get lists of available MIDI controllers
const inputs = access.inputs.values();
const outputs = access.outputs.values();
access.onstatechange = function(e) {
// Print information about the (dis)connected MIDI controller
console.log(e.port.name, e.port.manufacturer, e.port.state);
};
});
Specifications
Specification | Status | Comment |
---|---|---|
Web MIDI API | Working Draft | Initial definition. |
Browser compatibility
BCD tables only load in the browser