mohayonao

function example01(audioContext, pulse) {
  var destination = audioContext.destination;
  var t0 = audioContext.currentTime;
  
  pulse(destination, t0, { frequency: 440, volume: 0.3, duty: 0.8 });
}

mohayonao

.speaker {
  width: 32px;
  height: 32px;
  stroke-width: 3px;
  stroke-linecap: round;
  stroke-linejoin: round;
  border-radius: 4px;
  background: #ecf0f1;
}

mohayonao

import React, { Component, PropTypes } from "react";
import Volatile from "./Volatile";

@Volatile({ timeout: 2500 })
class UI extends Component {
  static propTypes = {
    data: PropTypes.number.isRequired,
  };

  shouldComponentUpdate(nextProps) {

mohayonao

function importScript(src) {
    return new Promise((resolve, reject) => {
      const script = document.createElement("script");

      script.async = 1;
      script.type = "text/javascript";
      script.src = src;
      script.onerror = reject;
      script.onload = () => {
        document.body.removeChild(script);

mohayonao

"use strict";

const LOWPASS = "lowpass";
const HIGHPASS = "highpass";
const BANDPASS = "bandpass";
const LOWSHELF = "lowshelf";
const HIGHSHELF = "highshelf";
const PEAKING = "peaking";
const NOTCH = "notch";
const ALLPASS = "allpass";

mohayonao

// velocity-for-color
// https://github.com/brunchboy/afterglow/blob/master/src/afterglow/controllers/ableton_push.clj#L24
module.exports = (h, s, v) => {
  if (v < 3) {
    return 0;
  }

  const brightnessShift = (60 < v) ? 0 : (37 < v) ? 1 : (15 < v) ? 2 : 3;

  if (s < 20) {

mohayonao

function selectAudioChannel(type) {
  var splitter = audioCtx.createChannelSplitter(2);
  audioSource.disconnect(); // ?
  switch (type) {
    case 'L':
      audioSource.connect(splitter);
      splitter.connect(audioCtx.destination, 0);
      break;
    case 'R':
      audioSource.connect(splitter);

mohayonao

const synthdef = require("synthdef");

const def1 = synthdef(($) => {
  let s;
  s = $("SinOsc").ar(220, 0, 0.5);
  s = $("Out").ar(0, s);
  return s;
});

const def2 = synthdef(($) => {

mohayonao

module.exports = new Uint32Array([
  0x46464952, 0x0000002c, 0x45564157, 0x20746d66,
  0x00000010, 0x00020001, 0x0000ac44, 0x0002b110,
  0x00100004, 0x61746164, 0x00000008, 0x8000c000, 0x3fff7fff
]).buffer;

mohayonao

let audioContext = new AudioContext();
let sched = new WebAudioScheduler({
  context: audioContext
});

function metronome(e) {
  sched.insert(e.playbackTime + 0.000, ticktack, { frequency: 880, duration: 1.00 });
  sched.insert(e.playbackTime + 0.500, ticktack, { frequency: 440, duration: 0.05 });
  sched.insert(e.playbackTime + 1.000, ticktack, { frequency: 440, duration: 0.05 });
  sched.insert(e.playbackTime + 1.500, ticktack, { frequency: 440, duration: 0.05 });