qambi/dist/simple_synth.js

MIDI sequencer, loads MIDI files, can record and playback MIDI, uses WebMIDI and WebAudio

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SimpleSynth = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _instrument = require('./instrument');

var _sample_oscillator = require('./sample_oscillator');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var instanceIndex = 0;

var SimpleSynth = exports.SimpleSynth = function (_Instrument) {
  _inherits(SimpleSynth, _Instrument);

  function SimpleSynth(type, name) {
    _classCallCheck(this, SimpleSynth);

    var _this = _possibleConstructorReturn(this, (SimpleSynth.__proto__ || Object.getPrototypeOf(SimpleSynth)).call(this));

    _this.id = _this.constructor.name + '_' + instanceIndex++ + '_' + new Date().getTime();
    _this.name = name || _this.id;
    _this.type = type;
    _this.sampleData = {
      type: type,
      releaseDuration: 0.2,
      releaseEnvelope: 'equal power'
    };
    return _this;
  }

  _createClass(SimpleSynth, [{
    key: 'createSample',
    value: function createSample(event) {
      return new _sample_oscillator.SampleOscillator(this.sampleData, event);
    }

    // stereo spread

  }, {
    key: 'setKeyScalingPanning',
    value: function setKeyScalingPanning() {
      // sets panning based on the key value, e.g. higher notes are panned more to the right and lower notes more to the left
    }
  }, {
    key: 'setKeyScalingRelease',
    value: function setKeyScalingRelease() {}
    // set release based on key value


    /*
      @duration: milliseconds
      @envelope: linear | equal_power | array of int values
    */

  }, {
    key: 'setRelease',
    value: function setRelease(duration, envelope) {
      this.sampleData.releaseDuration = duration;
      this.sampleData.releaseEnvelope = envelope;
    }
  }]);

  return SimpleSynth;
}(_instrument.Instrument);