Merge pull request #1 from metacube2/codex/create-php-website-with-mouse-synthesizer
Add MausSynth Web Audio playground
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<?php
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$title = "MausSynth Lab";
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?>
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title><?= htmlspecialchars($title, ENT_QUOTES, 'UTF-8'); ?></title>
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<style>
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:root {
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--bg: radial-gradient(circle at center, #1f014d 0%, #05010d 100%);
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--accent: #ff2bd7;
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--glow: rgba(255, 43, 215, 0.35);
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--text: #f7f3ff;
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}
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* {
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box-sizing: border-box;
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cursor: none;
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}
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body {
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margin: 0;
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font-family: 'Orbitron', 'Segoe UI', sans-serif;
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color: var(--text);
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background: var(--bg);
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height: 100vh;
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overflow: hidden;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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}
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h1 {
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font-weight: 600;
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letter-spacing: 0.2em;
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text-transform: uppercase;
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margin-bottom: 0.5rem;
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text-shadow: 0 0 8px var(--accent);
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}
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p.description {
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margin: 0;
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opacity: 0.7;
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letter-spacing: 0.08em;
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text-align: center;
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max-width: 420px;
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}
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.stage {
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position: relative;
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width: min(90vw, 900px);
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height: min(70vh, 520px);
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border-radius: 24px;
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border: 2px solid rgba(255, 255, 255, 0.15);
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background: rgba(10, 5, 25, 0.7);
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backdrop-filter: blur(6px);
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box-shadow: 0 0 30px rgba(5, 0, 20, 0.7);
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overflow: hidden;
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}
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canvas#visualizer {
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width: 100%;
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height: 100%;
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display: block;
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}
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.cursor {
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position: absolute;
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top: 0;
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left: 0;
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width: 80px;
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height: 80px;
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margin-top: -40px;
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margin-left: -40px;
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border-radius: 50%;
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pointer-events: none;
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border: 2px solid var(--accent);
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box-shadow: 0 0 30px var(--accent), inset 0 0 20px var(--glow);
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mix-blend-mode: screen;
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transition: transform 0.1s ease-out;
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}
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.hud {
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position: absolute;
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right: 16px;
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bottom: 16px;
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padding: 12px 16px;
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background: rgba(10, 5, 25, 0.8);
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border-radius: 12px;
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font-size: 0.85rem;
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letter-spacing: 0.05em;
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border: 1px solid rgba(255, 255, 255, 0.1);
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}
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.hud span.label {
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color: rgba(255,255,255,0.6);
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margin-right: 8px;
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}
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.hint {
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margin-top: 1rem;
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font-size: 0.9rem;
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letter-spacing: 0.05em;
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opacity: 0.75;
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}
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@media (max-width: 600px) {
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* {
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cursor: default;
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}
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.cursor {
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display: none;
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}
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}
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</style>
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</head>
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<body>
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<h1><?= htmlspecialchars($title, ENT_QUOTES, 'UTF-8'); ?></h1>
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<p class="description">Schiebe deine Maus über das Klangfeld, um Frequenz, Filter und verrückte Modulation zu steuern. Klicke, um Beats zu triggern.</p>
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<div class="stage" id="stage">
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<canvas id="visualizer"></canvas>
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<div class="cursor" id="cursor"></div>
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<div class="hud" id="hud">
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<div><span class="label">Freq</span><span id="freqReadout">-- Hz</span></div>
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<div><span class="label">Reso</span><span id="resoReadout">--</span></div>
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<div><span class="label">Noise</span><span id="noiseReadout">--</span></div>
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</div>
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</div>
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<p class="hint">Tipp: Halte die Maustaste gedrückt, bewege dich in Kreisen – und genieße den abgefahrenen Klangteppich!</p>
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<script>
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const stage = document.getElementById('stage');
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const cursor = document.getElementById('cursor');
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const canvas = document.getElementById('visualizer');
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const ctx = canvas.getContext('2d');
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const freqReadout = document.getElementById('freqReadout');
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const resoReadout = document.getElementById('resoReadout');
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const noiseReadout = document.getElementById('noiseReadout');
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let audioCtx;
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let masterGain;
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let filter;
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let lfo;
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let lfoGain;
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let noise;
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let noiseGain;
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let compressor;
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let isPressed = false;
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let analyser;
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let bufferLength;
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let dataArray;
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function setupAudio() {
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if (audioCtx) return;
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audioCtx = new (window.AudioContext || window.webkitAudioContext)();
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const osc = audioCtx.createOscillator();
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osc.type = 'sawtooth';
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filter = audioCtx.createBiquadFilter();
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filter.type = 'lowpass';
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filter.frequency.value = 200;
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filter.Q.value = 12;
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lfo = audioCtx.createOscillator();
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lfo.type = 'sine';
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lfo.frequency.value = 4;
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lfoGain = audioCtx.createGain();
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lfoGain.gain.value = 1200;
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noise = createNoiseSource();
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noiseGain = audioCtx.createGain();
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noiseGain.gain.value = 0.05;
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masterGain = audioCtx.createGain();
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masterGain.gain.value = 0.0;
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compressor = audioCtx.createDynamicsCompressor();
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compressor.threshold.value = -24;
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compressor.ratio.value = 12;
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compressor.attack.value = 0.005;
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compressor.release.value = 0.2;
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analyser = audioCtx.createAnalyser();
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analyser.fftSize = 1024;
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bufferLength = analyser.frequencyBinCount;
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dataArray = new Uint8Array(bufferLength);
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osc.connect(filter);
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filter.connect(masterGain);
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lfo.connect(lfoGain);
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lfoGain.connect(filter.frequency);
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noise.connect(noiseGain).connect(masterGain);
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masterGain.connect(compressor).connect(audioCtx.destination);
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masterGain.connect(analyser);
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osc.start();
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lfo.start();
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noise.start(0);
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}
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function createNoiseSource() {
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const rate = audioCtx.sampleRate;
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const bufferSize = rate * 2;
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const buffer = audioCtx.createBuffer(1, bufferSize, rate);
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const output = buffer.getChannelData(0);
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for (let i = 0; i < bufferSize; i++) {
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output[i] = Math.random() * 2 - 1;
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}
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const noiseSource = audioCtx.createBufferSource();
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noiseSource.buffer = buffer;
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noiseSource.loop = true;
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return noiseSource;
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}
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function resizeCanvas() {
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canvas.width = stage.clientWidth;
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canvas.height = stage.clientHeight;
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}
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function updateAudio(x, y) {
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if (!audioCtx) return;
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const rect = stage.getBoundingClientRect();
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const normX = (x - rect.left) / rect.width;
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const normY = (y - rect.top) / rect.height;
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const minFreq = 80;
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const maxFreq = 1200;
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const freq = minFreq * Math.pow(maxFreq / minFreq, normX);
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filter.frequency.setTargetAtTime(freq, audioCtx.currentTime, 0.02);
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const q = 4 + normY * 20;
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filter.Q.setTargetAtTime(q, audioCtx.currentTime, 0.02);
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const noiseLevel = normY * 0.3;
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noiseGain.gain.setTargetAtTime(noiseLevel, audioCtx.currentTime, 0.05);
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const lfoSpeed = 0.5 + normX * 8;
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lfo.frequency.setTargetAtTime(lfoSpeed, audioCtx.currentTime, 0.05);
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freqReadout.textContent = `${freq.toFixed(1)} Hz`;
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resoReadout.textContent = q.toFixed(2);
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noiseReadout.textContent = noiseLevel.toFixed(2);
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}
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function animate() {
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requestAnimationFrame(animate);
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if (!analyser) return;
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analyser.getByteFrequencyData(dataArray);
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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const barWidth = (canvas.width / bufferLength) * 2.5;
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let x = 0;
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for (let i = 0; i < bufferLength; i++) {
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const barHeight = dataArray[i] / 255 * canvas.height;
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const hue = (i / bufferLength) * 360;
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ctx.fillStyle = `hsla(${hue}, 90%, 60%, 0.6)`;
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ctx.fillRect(x, canvas.height - barHeight, barWidth, barHeight);
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x += barWidth + 1;
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}
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}
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function pointerMove(event) {
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const x = event.clientX;
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const y = event.clientY;
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cursor.style.transform = `translate(${x}px, ${y}px) scale(${isPressed ? 1.2 : 1})`;
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updateAudio(x, y);
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}
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function pointerDown() {
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isPressed = true;
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if (!audioCtx) {
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setupAudio();
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}
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if (!audioCtx) return;
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masterGain.gain.cancelScheduledValues(audioCtx.currentTime);
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masterGain.gain.setTargetAtTime(0.7, audioCtx.currentTime, 0.02);
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lfoGain.gain.setTargetAtTime(900, audioCtx.currentTime, 0.08);
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}
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function pointerUp() {
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isPressed = false;
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if (!audioCtx) return;
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masterGain.gain.setTargetAtTime(0.0, audioCtx.currentTime, 0.05);
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lfoGain.gain.setTargetAtTime(200, audioCtx.currentTime, 0.08);
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}
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stage.addEventListener('pointermove', pointerMove);
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stage.addEventListener('pointerdown', pointerDown);
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window.addEventListener('pointerup', pointerUp);
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window.addEventListener('resize', resizeCanvas);
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resizeCanvas();
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animate();
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document.addEventListener('keydown', (event) => {
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if (!audioCtx) return;
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if (event.code === 'Space') {
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const now = audioCtx.currentTime;
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const burst = audioCtx.createOscillator();
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burst.type = 'square';
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burst.frequency.value = filter.frequency.value * 0.5;
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const burstGain = audioCtx.createGain();
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burstGain.gain.value = 0;
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burst.connect(burstGain).connect(masterGain);
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burst.start(now);
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burstGain.gain.setValueAtTime(0, now);
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burstGain.gain.linearRampToValueAtTime(0.8, now + 0.05);
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burstGain.gain.exponentialRampToValueAtTime(0.001, now + 0.5);
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burst.stop(now + 0.6);
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}
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});
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</script>
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</body>
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</html>
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