requirebin sketch

index.js

// Welcome! require() some modules from npm (like you were using browserify)
// and then hit Run Code to run your code on the right side.
// Modules get downloaded from browserify-cdn and bundled in your browser.
const drummer = require('drummer')()
const kick = drummer.kick
const snare = drummer.snare
const hihat = drummer.hihat

function bar (time) {
  if (time >= 20) return
  kick.hit(0 + time)
  hihat.hit(0 + time)
  hihat.hit(0.25 + time)

  kick.hit(0.5 + time)
  snare.hit(0.5 + time)
  hihat.hit(0.5 + time)

  hihat.hit(0.75 + time)

  kick.hit(1 + time)
  hihat.hit(1 + time)

  hihat.hit(1.25 + time)

  kick.hit(1.5 + time)
  snare.hit(1.5 + time)
  hihat.hit(1.5 + time)

  hihat.hit(1.75 + time)

  kick.hit(2 + time)
  hihat.hit(2 + time)

  hihat.hit(2.25 + time)

  kick.hit(2.5 + time)
  snare.hit(2.5 + time)
  hihat.hit(2.5 + time)

  snare.hit(2.75 + time)
  return bar(time + 3)
}

bar(0)

minified.js

setTimeout(function(){
;require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
module.exports = Hihat

function Hihat (context, opts) {
  this.context = context
}

Hihat.prototype.hit = function hit (time) {
  const context = this.context
  const fundamental = 40
  const ratios = [2, 3, 4.16, 5.43, 6.79, 8.21]
  const now = context.currentTime + time
  const gain = context.createGain()

  const bandpass = context.createBiquadFilter()
  bandpass.type = 'bandpass'
  bandpass.frequency.value = 10000

  const highpass = context.createBiquadFilter()
  highpass.type = 'highpass'
  highpass.frequency.value = 7000

  bandpass.connect(highpass)
  highpass.connect(gain)
  gain.connect(context.destination)

  ratios.forEach((ratio) => {
    const oscillator = context.createOscillator()
    oscillator.type = 'square'
    oscillator.frequency.value = fundamental * ratio
    oscillator.connect(bandpass)
    oscillator.start(now)
    oscillator.stop(now + 0.3)
  })

  gain.gain.setValueAtTime(0.00001, now)
  gain.gain.exponentialRampToValueAtTime(1, now + 0.02)
  gain.gain.exponentialRampToValueAtTime(0.3, now + 0.03)
  gain.gain.exponentialRampToValueAtTime(0.00001, now + 0.3)
}

},{}],2:[function(require,module,exports){
module.exports = Kick

function Kick (context, opts) {
  opts = opts || {}
  this.context = context
  this.type = opts.type || 'sine'
}

Kick.prototype.hit = function hit (time, opts) {
  opts = opts || {}
  const oscillator = this.context.createOscillator()
  const gain = this.context.createGain()
  const totalTime = time + this.context.currentTime

  oscillator.type = this.type
  oscillator.connect(gain)
  gain.connect(this.context.destination)

  oscillator.frequency.setValueAtTime(150, totalTime)
  gain.gain.setValueAtTime(1, time)
  oscillator.frequency.exponentialRampToValueAtTime(0.01, totalTime + 0.5)
  gain.gain.exponentialRampToValueAtTime(0.01, totalTime + 0.5)

  oscillator.start(totalTime)
  oscillator.stop(totalTime + 0.5)
}

},{}],3:[function(require,module,exports){
var window = require('global/window');

var Context = window.AudioContext || window.webkitAudioContext;
if (Context) module.exports = new Context;

},{"global/window":4}],4:[function(require,module,exports){
(function (global){
if (typeof window !== "undefined") {
    module.exports = window;
} else if (typeof global !== "undefined") {
    module.exports = global;
} else {
    module.exports = {};
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
//# sourceMappingURL=data:application/json;charset:utf-8;base64,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
},{}],5:[function(require,module,exports){
module.exports = Snare

function Snare (context, opts) {
  opts = opts || {}
  this.context = context
}

Snare.prototype.createBuffer = function createBuffer () {
  const bufferSize = this.context.sampleRate
  const buffer = this.context.createBuffer(1, bufferSize, this.context.sampleRate)
  let output = buffer.getChannelData(0)

  for (let i = 0; i < bufferSize; i++) {
    output[i] = Math.random() * 2 - 1
  }

  return buffer
}

Snare.prototype.hit = function hit (time) {
  const noise = this.context.createBufferSource()
  noise.buffer = this.createBuffer()

  const noiseFilter = this.context.createBiquadFilter()
  noiseFilter.type = 'highpass'
  noiseFilter.frequency.value = 1000
  noise.connect(noiseFilter)

  const noiseEnvelope = this.context.createGain()
  noiseFilter.connect(noiseEnvelope)
  noiseEnvelope.connect(this.context.destination)

  const oscillator = this.context.createOscillator()
  oscillator.type = 'triangle'

  const oscEnvelope = this.context.createGain()
  oscillator.connect(oscEnvelope)
  oscEnvelope.connect(this.context.destination)

  noiseEnvelope.gain.setValueAtTime(1, time)
  noiseEnvelope.gain.exponentialRampToValueAtTime(0.01, time + 0.2)
  noise.start(time)

  oscillator.frequency.setValueAtTime(100, time)
  oscEnvelope.gain.setValueAtTime(0.7, time)
  oscEnvelope.gain.exponentialRampToValueAtTime(0.01, time + 0.1)
  oscillator.start(time)

  oscillator.stop(time + 0.2)
  noise.stop(time + 0.2)
}

},{}],"drummer":[function(require,module,exports){
const context = require('audio-context')
const Kick = require('./kick')
const Snare = require('./snare')
const Hihat = require('./hihat')

function Drummer (options) {
  options = options || {}
  if (!(this instanceof Drummer)) return new Drummer(options)
  const kick = new Kick(context, options.kick)
  const snare = new Snare(context, options.snare)
  const hihat = new Hihat(context, options.hihat)

  return {
    kick,
    snare,
    hihat,
    context
  }
}

module.exports = Drummer

},{"./hihat":1,"./kick":2,"./snare":5,"audio-context":3}]},{},[])
//# sourceMappingURL=data:application/json;base64,{"version":3,"sources":["../../../../home/admin/browserify-cdn/node_modules/browserify/node_modules/browser-pack/_prelude.js","hihat.js","kick.js","node_modules/audio-context/index.js","node_modules/audio-context/node_modules/global/window.js","snare.js","index.js"],"names":[],"mappings":"AAAA;ACAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACvCA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC1BA;AACA;AACA;AACA;AACA;;ACJA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACVA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACnDA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA","file":"generated.js","sourceRoot":"","sourcesContent":["(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","module.exports = Hihat\n\nfunction Hihat (context, opts) {\n  this.context = context\n}\n\nHihat.prototype.hit = function hit (time) {\n  const context = this.context\n  const fundamental = 40\n  const ratios = [2, 3, 4.16, 5.43, 6.79, 8.21]\n  const now = context.currentTime + time\n  const gain = context.createGain()\n\n  const bandpass = context.createBiquadFilter()\n  bandpass.type = 'bandpass'\n  bandpass.frequency.value = 10000\n\n  const highpass = context.createBiquadFilter()\n  highpass.type = 'highpass'\n  highpass.frequency.value = 7000\n\n  bandpass.connect(highpass)\n  highpass.connect(gain)\n  gain.connect(context.destination)\n\n  ratios.forEach((ratio) => {\n    const oscillator = context.createOscillator()\n    oscillator.type = 'square'\n    oscillator.frequency.value = fundamental * ratio\n    oscillator.connect(bandpass)\n    oscillator.start(now)\n    oscillator.stop(now + 0.3)\n  })\n\n  gain.gain.setValueAtTime(0.00001, now)\n  gain.gain.exponentialRampToValueAtTime(1, now + 0.02)\n  gain.gain.exponentialRampToValueAtTime(0.3, now + 0.03)\n  gain.gain.exponentialRampToValueAtTime(0.00001, now + 0.3)\n}\n","module.exports = Kick\n\nfunction Kick (context, opts) {\n  opts = opts || {}\n  this.context = context\n  this.type = opts.type || 'sine'\n}\n\nKick.prototype.hit = function hit (time, opts) {\n  opts = opts || {}\n  const oscillator = this.context.createOscillator()\n  const gain = this.context.createGain()\n  const totalTime = time + this.context.currentTime\n\n  oscillator.type = this.type\n  oscillator.connect(gain)\n  gain.connect(this.context.destination)\n\n  oscillator.frequency.setValueAtTime(150, totalTime)\n  gain.gain.setValueAtTime(1, time)\n  oscillator.frequency.exponentialRampToValueAtTime(0.01, totalTime + 0.5)\n  gain.gain.exponentialRampToValueAtTime(0.01, totalTime + 0.5)\n\n  oscillator.start(totalTime)\n  oscillator.stop(totalTime + 0.5)\n}\n","var window = require('global/window');\n\nvar Context = window.AudioContext || window.webkitAudioContext;\nif (Context) module.exports = new Context;\n","(function (global){\nif (typeof window !== \"undefined\") {\n    module.exports = window;\n} else if (typeof global !== \"undefined\") {\n    module.exports = global;\n} else {\n    module.exports = {};\n}\n\n}).call(this,typeof global !== \"undefined\" ? global : typeof self !== \"undefined\" ? self : typeof window !== \"undefined\" ? window : {})\n//# sourceMappingURL=data:application/json;charset:utf-8;base64,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","module.exports = Snare\n\nfunction Snare (context, opts) {\n  opts = opts || {}\n  this.context = context\n}\n\nSnare.prototype.createBuffer = function createBuffer () {\n  const bufferSize = this.context.sampleRate\n  const buffer = this.context.createBuffer(1, bufferSize, this.context.sampleRate)\n  let output = buffer.getChannelData(0)\n\n  for (let i = 0; i < bufferSize; i++) {\n    output[i] = Math.random() * 2 - 1\n  }\n\n  return buffer\n}\n\nSnare.prototype.hit = function hit (time) {\n  const noise = this.context.createBufferSource()\n  noise.buffer = this.createBuffer()\n\n  const noiseFilter = this.context.createBiquadFilter()\n  noiseFilter.type = 'highpass'\n  noiseFilter.frequency.value = 1000\n  noise.connect(noiseFilter)\n\n  const noiseEnvelope = this.context.createGain()\n  noiseFilter.connect(noiseEnvelope)\n  noiseEnvelope.connect(this.context.destination)\n\n  const oscillator = this.context.createOscillator()\n  oscillator.type = 'triangle'\n\n  const oscEnvelope = this.context.createGain()\n  oscillator.connect(oscEnvelope)\n  oscEnvelope.connect(this.context.destination)\n\n  noiseEnvelope.gain.setValueAtTime(1, time)\n  noiseEnvelope.gain.exponentialRampToValueAtTime(0.01, time + 0.2)\n  noise.start(time)\n\n  oscillator.frequency.setValueAtTime(100, time)\n  oscEnvelope.gain.setValueAtTime(0.7, time)\n  oscEnvelope.gain.exponentialRampToValueAtTime(0.01, time + 0.1)\n  oscillator.start(time)\n\n  oscillator.stop(time + 0.2)\n  noise.stop(time + 0.2)\n}\n","const context = require('audio-context')\nconst Kick = require('./kick')\nconst Snare = require('./snare')\nconst Hihat = require('./hihat')\n\nfunction Drummer (options) {\n  options = options || {}\n  if (!(this instanceof Drummer)) return new Drummer(options)\n  const kick = new Kick(context, options.kick)\n  const snare = new Snare(context, options.snare)\n  const hihat = new Hihat(context, options.hihat)\n\n  return {\n    kick,\n    snare,\n    hihat,\n    context\n  }\n}\n\nmodule.exports = Drummer\n"]}
// Welcome! require() some modules from npm (like you were using browserify)
// and then hit Run Code to run your code on the right side.
// Modules get downloaded from browserify-cdn and bundled in your browser.
const drummer = require('drummer')()
const kick = drummer.kick
const snare = drummer.snare
const hihat = drummer.hihat

function bar (time) {
  if (time >= 20) return
  kick.hit(0 + time)
  hihat.hit(0 + time)
  hihat.hit(0.25 + time)

  kick.hit(0.5 + time)
  snare.hit(0.5 + time)
  hihat.hit(0.5 + time)

  hihat.hit(0.75 + time)

  kick.hit(1 + time)
  hihat.hit(1 + time)

  hihat.hit(1.25 + time)

  kick.hit(1.5 + time)
  snare.hit(1.5 + time)
  hihat.hit(1.5 + time)

  hihat.hit(1.75 + time)

  kick.hit(2 + time)
  hihat.hit(2 + time)

  hihat.hit(2.25 + time)

  kick.hit(2.5 + time)
  snare.hit(2.5 + time)
  hihat.hit(2.5 + time)

  snare.hit(2.75 + time)
  return bar(time + 3)
}

bar(0)
;}, 0)

package.json

{
  "name": "requirebin-sketch",
  "version": "1.0.0",
  "dependencies": {
    "drummer": "1.0.0"
  }
}

page-body.html

<!-- contents of this file will be placed inside the <body> -->

page-head.html

<!-- contents of this file will be placed inside the <head> -->

requirebin.md

made with requirebin