<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
	<title>Analyser</title>

	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
	<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">

	<script src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/webcomponents-bundle.js"></script>
	<link href="https://fonts.googleapis.com/css?family=Material+Icons&display=block" rel="stylesheet"/>
	<script src="../build/Tone.js"></script>
	<script src="./js/tone-ui.js"></script>
	<script src="./js/components.js"></script>

</head>
<body>
	<tone-example label="Analyser">
		<tone-loader></tone-loader>

		<div slot="explanation">
			<a href="https://tonejs.github.io/docs/FFT" target="_blank">Tone.FFT</a>
			returns the amplitude of the incoming signal at different frequencies.
			<a href="https://tonejs.github.io/docs/Waveform" target="_blank">Tone.Waveform</a>
			returns the signal value between 0-1.
		</div>

		<div id="content">
			<tone-play-toggle></tone-play-toggle>
		</div>
	</tone-example>

	<script type="text/javascript">
		const player = new Tone.Player({
			url: "https://tonejs.github.io/audio/berklee/arpeggio2.mp3",
			loop: true
		}).toDestination();

		const toneMeter = new Tone.Meter();
		player.connect(toneMeter);

		const toneFFT = new Tone.FFT();
		player.connect(toneFFT);

		const toneWaveform = new Tone.Waveform();
		player.connect(toneWaveform);

		// bind the GUI
		drawer().add({
			tone: player,
			title: "Player",
		});
		meter({
			tone: toneMeter,
			parent: document.querySelector("#content")
		});
		fft({
			tone: toneFFT,
			parent: document.querySelector("#content")
		});
		waveform({
			tone: toneWaveform,
			parent: document.querySelector("#content")
		});

		document.querySelector("tone-play-toggle").addEventListener("start", () => player.start());
		document.querySelector("tone-play-toggle").addEventListener("stop", () => player.stop());

	</script>
</body>
</html>