MIDIPlayer

MIDIPlayer allows you to play MIDI files in your browser with the help of the WebMIDIAPI.

MIDIPlayer can be used either in modern browsers (pick the last bundle) or with NodeJS by installing the following NPM module :

npm install midiplayer

This player is used for this MIDI Karaoke Player

Usage

//Require MIDIPlayer and MIDIFile modules
var MIDIPlayer = require('midiplayer');
var MIDIFile = require('midifile');
 
 
navigator.requestMIDIAccess().then(function(midiAccess) {
    // Creating player
    var midiPlayer = new MIDIPlayer({
      'output': midiAccess.outputs()[0]
    });
 
    // creating the MidiFile instance from a buffer (view MIDIFile README)
    var midiFile = new MIDIFile(buffer);
 
    // Loading the midiFile instance in the player
    midiPlayer.load(midiFile);
 
    // Playing
    midiPlayer.play(function() {
        console.log('Play ended');
    });
 
    // Volume
    midiPlayer.volume = 80; // in percent
 
    // Pausing
    midiPlayer.pause();
 
    // Resuming
    midiPlayer.resume();
 
    // Stopping
    midiPlayer.stop();
 
    // Playing again and loop
    midiPlayer.play(function playCallback() {
        midiPlayer.play(playCallback);
    });
 
}, function() {
    console.log('No midi output');
});

License

Copyright Nicolas Froidure 2013. MIT licence.