QE 64070185 ปัทมาภรณ์ บุญเรือง – CODEBOX

QE 64070185 ปัทมาภรณ์ บุญเรือง

✨ P A T T H A M A P O R N

<style>body {text-align: center;}</style>
<button onclick="start()">Star</button>
<button onclick="end()">Stop</button>
<button onclick="again()">Star Again</button>
<br>
<br>
<button onclick="sine()">Sine</button>
<button onclick="triangle()">triangle</button>
<button onclick="square()">Square</button>
<button onclick="sawtooth()">Sawtooth</button>
<input type="range" min="100" max="1000" value="440"
       oninput="f = parseInt(this.value);osci.frequency.value = f">
<input type="range" min="100" max="10000" value="440"
       oninput="v = parseInt(this.value);gain.gain.value = v/10000; console.log(v/100)">
<script>
  audio = new (window.AudioContext || window.webkitAudioContext)()
  osci = audio.createOscillator()
  gain = audio.createGain()
  osci.connect(gain)
  gain.connect(audio.destination)
  function start() {osci.start()}
  function end() {osci.disconnect()}
  function again() {osci.connect(gain)}
  function sine() {osci.type = 'sine'}
  function triangle() {osci.type = 'triangle'}
  function square() {osci.type = 'square'}
  function sawtooth() {osci.type = 'sawtooth'}
</script>