Doing mozilla tutorial. Volume doesn't go down when I move slider even though gainNode.gain.value goes to zero.
HTML
<input type="range" id="volume" min="0" max="2" value="1" step="0.01">
<audio src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/858/outfoxing.mp3" crossorigin="anonymous" id="basic-audio"></audio>
JAVASCRIPT
const volumeSlider = document.getElementById('volume');
const audioElement = document.getElementById('basic-audio');
const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioContext = new AudioContext();
const track = audioContext.createMediaElementSource(audioElement);
track.connect(audioContext.destination);
const gainNode = audioContext.createGain();
track.connect(gainNode).connect(audioContext.destination);
volumeSlider.addEventListener('input', function() {
gainNode.gain.value = this.value;
console.log(gainNode.gain.value);
}, false);
I knew it was a dumb question.
Instead of
track.connect(audioContext.destination);
and then
track.connect(gainNode).connect(audioContext.destination);
Just do it once
track.connect(gainNode).connect(audioContext.destination);