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simple-reverb-test.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>reverb test</title>
<meta charset="UTF-8">
<meta name="description" content="testing simple-reverb"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<link rel="stylesheet" type="text/css" href="../sheep3.css">
<script src="../sheep3.js" charset="utf-8"></script>
<script src="./three.min.js" charset="utf-8"></script>
<script src="./simple-reverb.js" charset="utf-8"></script>
</head>
<body>
<h1>wow reverb</h1>
<p><label for="seconds">impulse response length</label> <input type="number" id="seconds" value="3"></p>
<p><label for="decay">impulse response decay rate</label> <input type="number" id="decay" value="2"></p>
<p><label for="reverse">reverse the impulse response</label> <input type="checkbox" id="reverse"></p>
<p><label for="music">sound file</label> <input type="file" id="music" accept="audio/*"></p>
<p><button id="play" disabled>play</button> <button id="stop" disabled>stop</button></p>
<p>(plays so-hum track by default)</p>
<script>
const seconds = document.getElementById('seconds');
const decay = document.getElementById('decay');
const reverse = document.getElementById('reverse');
const music = document.getElementById('music');
const play = document.getElementById('play');
const stop = document.getElementById('stop');
const camera = new THREE.PerspectiveCamera(75, 1, 0.1, 1000);
const listener = new THREE.AudioListener();
camera.add(listener);
const sound = new THREE.Audio(listener);
new THREE.AudioLoader().load('./sounds/sohum.mp3', buffer => {
play.disabled = false;
sound.setBuffer(buffer);
});
music.addEventListener('change', e => {
const file = music.files[0];
if (file) {
const url = URL.createObjectURL(file)
new THREE.AudioLoader().load(url, buffer => {
URL.revokeObjectURL(url);
sound.setBuffer(buffer);
});
}
});
play.addEventListener('click', e => {
const verb = new SimpleReverb(sound.context, {
seconds: +seconds.value,
decay: +decay.value,
reverse: reverse.checked
});
sound.setFilter(verb.input);
verb.connect(sound.context.destination);
sound.play();
play.disabled = true;
stop.disabled = false;
});
sound.onEnded(() => {
stop.disabled = true;
play.disabled = false;
});
stop.addEventListener('click', e => {
sound.stop();
stop.disabled = true;
play.disabled = false;
});
</script>
</body>
</html>