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Dangerous Dotterel answered on January 25, 2021 Popularity 9/10 Helpfulness 1/10

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Audio Visualizer</title>
    <style>
        canvas {
            background-color: black;
            display: block;
            margin: 0 auto;
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
    <canvas id="visualizer"></canvas>

    <script>
        window.onload = function() {
            const canvas = document.getElementById('visualizer');
            const ctx = canvas.getContext('2d');
            let audio, audioContext, analyser, dataArray;

            // Load audio
            audio = new Audio('your-audio-file.mp3');

            // Create audio context
            audioContext = new (window.AudioContext || window.webkitAudioContext)();
            analyser = audioContext.createAnalyser();
            analyser.fftSize = 256; // adjust for detail level
            const bufferLength = analyser.frequencyBinCount;
            dataArray = new Uint8Array(bufferLength);

            // Connect audio source to analyser
            const source = audioContext.createMediaElementSource(audio);
            source.connect(analyser);
            analyser.connect(audioContext.destination);

            // Play audio
            audio.play();

            // Visualize audio
            function draw() {
                requestAnimationFrame(draw);

                analyser.getByteFrequencyData(dataArray);

                // Clear canvas
                ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
                ctx.fillRect(0, 0, canvas.width, canvas.height);

                const barWidth = (canvas.width / bufferLength) * 2.5;
                let barHeight;
                let x = 0;

                for (let i = 0; i < bufferLength; i++) {
                    barHeight = dataArray[i] * 2;

                    ctx.fillStyle = 'rgb(' + (barHeight + 100) + ',50,50)';
                    ctx.fillRect(x, canvas.height - barHeight / 2, barWidth, barHeight);

                    x += barWidth + 1;
                }
            }

            // Call draw function
            draw();
        };
    </script>
</body>
</html>

Popularity 9/10 Helpfulness 1/10 Language html

Source: chat.openai.com

Tags: audio html

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Contributed on Apr 11 2024

Dangerous Dotterel

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Contributed on Jan 25 2021

Perfect Porcupine

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