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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>3D Audio Spectrum Analyzer</title>
	<style>
	:root {
	--primary-color: #1a1a2e;
	--secondary-color: #16213e;
	--accent-color: #0f3460;
	--text-color: #e7e7e7;
	--highlight-color: #4cc9f0;
	--gradient-1: #4361ee;
	--gradient-2: #3a0ca3;
	--gradient-3: #7209b7;
	--gradient-4: #f72585;
	}

	* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	}

	body {
	background-color: var(--primary-color);
	color: var(--text-color);
	overflow: hidden;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
	}

	header {
	background-color: var(--secondary-color);
	padding: 1rem;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
	z-index: 10;
	}

	.title {
	text-align: center;
	font-size: 1.8rem;
	font-weight: 600;
	color: var(--highlight-color);
	letter-spacing: 1px;
	text-transform: uppercase;
	}

	.canvas-container {
	flex: 1;
	position: relative;
	}

	#visualizer {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	}

	.control-panel {
	position: absolute;
	top: 1rem;
	right: 1rem;
	background-color: rgba(22, 33, 62, 0.8);
	backdrop-filter: blur(10px);
	border-radius: 12px;
	padding: 1.2rem;
	width: 280px;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
	z-index: 100;
	transition: transform 0.3s ease;
	}

	.control-panel.collapsed {
	transform: translateX(calc(100% - 50px));
	}

	.toggle-panel {
	position: absolute;
	left: 10px;
	top: 50%;
	transform: translateY(-50%);
	background-color: var(--accent-color);
	border: none;
	color: var(--text-color);
	width: 30px;
	height: 30px;
	border-radius: 50%;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.2rem;
	transition: background-color 0.2s ease;
	}

	.toggle-panel:hover {
	background-color: var(--highlight-color);
	}

	h2 {
	margin-bottom: 1rem;
	font-size: 1.3rem;
	color: var(--highlight-color);
	text-align: center;
	}

	.control-group {
	margin-bottom: 1.2rem;
	}

	.control-label {
	display: block;
	margin-bottom: 0.5rem;
	font-weight: 500;
	font-size: 0.9rem;
	color: var(--text-color);
	}

	.btn {
	background-color: var(--accent-color);
	color: var(--text-color);
	border: none;
	border-radius: 8px;
	padding: 0.7rem 1rem;
	font-size: 1rem;
	cursor: pointer;
	transition: all 0.2s ease;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	width: 100%;
	}

	.btn:hover {
	background-color: var(--highlight-color);
	color: var(--primary-color);
	}

	.btn:disabled {
	opacity: 0.6;
	cursor: not-allowed;
	}

	.btn-record {
	background-color: #e63946;
	}

	.btn-record:hover {
	background-color: #ff6b6b;
	}

	.btn-record.recording {
	animation: pulse 1.5s infinite;
	}

	@keyframes pulse {
	0% {
	background-color: #e63946;
	}
	50% {
	background-color: #ff6b6b;
	}
	100% {
	background-color: #e63946;
	}
	}

	.range-slider {
	width: 100%;
	margin: 0.5rem 0;
	}

	.slider-container {
	display: flex;
	align-items: center;
	gap: 1rem;
	}

	.slider-value {
	width: 50px;
	text-align: center;
	font-size: 0.9rem;
	color: var(--highlight-color);
	}

	.radio-group {
	display: flex;
	gap: 0.8rem;
	margin-top: 0.5rem;
	}

	.radio-option {
	display: flex;
	align-items: center;
	gap: 0.3rem;
	cursor: pointer;
	}

	.radio-option input {
	cursor: pointer;
	}

	.status-indicator {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-top: 1rem;
	padding: 0.5rem;
	border-radius: 8px;
	background-color: rgba(15, 52, 96, 0.5);
	}

	.status-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background-color: #6c757d;
	}

	.status-dot.active {
	background-color: #4cc9f0;
	box-shadow: 0 0 8px #4cc9f0;
	animation: glow 1.5s infinite alternate;
	}

	@keyframes glow {
	from {
	box-shadow: 0 0 5px #4cc9f0;
	}
	to {
	box-shadow: 0 0 12px #4cc9f0;
	}
	}

	.status-text {
	font-size: 0.9rem;
	}

	@media (max-width: 768px) {
	.control-panel {
	width: 250px;
	}

	.title {
	font-size: 1.5rem;
	}
	}
	</style>
	</head>
	<body>
	<header>
	<h1 class="title">3D Audio Spectrum Analyzer</h1>
	</header>

	<div class="canvas-container">
	<canvas id="visualizer"></canvas>
	</div>

	<div class="control-panel">
	<button class="toggle-panel">≡</button>
	<h2>Control Panel</h2>

	<div class="control-group">
	<button id="startBtn" class="btn btn-record">
	<span class="btn-icon">◉</span> Start Microphone
	</button>
	</div>

	<div class="control-group">
	<label class="control-label">Color Scheme</label>
	<div class="radio-group">
	<label class="radio-option">
	<input type="radio" name="colorScheme" value="blue" checked>
	<span>Blue</span>
	</label>
	<label class="radio-option">
	<input type="radio" name="colorScheme" value="red">
	<span>Red</span>
	</label>
	<label class="radio-option">
	<input type="radio" name="colorScheme" value="rainbow">
	<span>Rainbow</span>
	</label>
	</div>
	</div>

	<div class="control-group">
	<label class="control-label">Frequency Range</label>
	<div class="slider-container">
	<input type="range" class="range-slider" id="frequencyRange" min="0" max="100" value="100">
	<span class="slider-value" id="frequencyValue">100%</span>
	</div>
	</div>

	<div class="control-group">
	<label class="control-label">Sensitivity</label>
	<div class="slider-container">
	<input type="range" class="range-slider" id="sensitivityRange" min="1" max="10" value="5">
	<span class="slider-value" id="sensitivityValue">5</span>
	</div>
	</div>

	<div class="control-group">
	<label class="control-label">3D Effect Depth</label>
	<div class="slider-container">
	<input type="range" class="range-slider" id="depthRange" min="1" max="10" value="5">
	<span class="slider-value" id="depthValue">5</span>
	</div>
	</div>

	<div class="status-indicator">
	<div class="status-dot" id="statusDot"></div>
	<div class="status-text" id="statusText">Waiting for microphone...</div>
	</div>
	</div>

	<script src="https://cdn.jsdelivr.net/npm/three@0.132.2/build/three.min.js"></script>

	<script>
	class AudioVisualizer {
	constructor() {
	// DOM elements
	this.canvas = document.getElementById('visualizer');
	this.startBtn = document.getElementById('startBtn');
	this.statusDot = document.getElementById('statusDot');
	this.statusText = document.getElementById('statusText');
	this.frequencyRange = document.getElementById('frequencyRange');
	this.frequencyValue = document.getElementById('frequencyValue');
	this.sensitivityRange = document.getElementById('sensitivityRange');
	this.sensitivityValue = document.getElementById('sensitivityValue');
	this.depthRange = document.getElementById('depthRange');
	this.depthValue = document.getElementById('depthValue');
	this.togglePanel = document.querySelector('.toggle-panel');
	this.controlPanel = document.querySelector('.control-panel');
	this.colorOptions = document.querySelectorAll('input[name="colorScheme"]');

	// Audio context and analyzer
	this.audioContext = null;
	this.analyser = null;
	this.dataArray = null;
	this.source = null;
	this.isRecording = false;

	// Three.js variables
	this.scene = null;
	this.camera = null;
	this.renderer = null;
	this.terrain = null;
	this.colorScheme = 'blue';
	this.maxFrequencyPercent = 100;
	this.sensitivity = 5;
	this.depth = 5;

	// Grid size for the 3D visualization
	this.gridSize = 64;
	this.vertices = [];
	this.heights = [];

	this.init();
	}

	init() {
	// Initialize Three.js
	this.initThree();

	// Initialize UI controls
	this.initControls();

	// Start render loop
	this.animate();

	// Handle window resize
	window.addEventListener('resize', () => this.onWindowResize());
	}

	initThree() {
	// Create scene
	this.scene = new THREE.Scene();

	// Create camera
	this.camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 1000);
	this.camera.position.set(0, 25, 50);
	this.camera.lookAt(0, 0, 0);

	// Create renderer
	this.renderer = new THREE.WebGLRenderer({ canvas: this.canvas, antialias: true });
	this.renderer.setSize(window.innerWidth, window.innerHeight);
	this.renderer.setClearColor(0x1a1a2e);

	// Add ambient light
	const ambientLight = new THREE.AmbientLight(0xffffff, 0.4);
	this.scene.add(ambientLight);

	// Add directional light
	const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8);
	directionalLight.position.set(1, 1, 1);
	this.scene.add(directionalLight);

	// Create the terrain mesh
	this.createTerrain();
	}

	createTerrain() {
	// Create grid geometry
	const geometry = new THREE.PlaneGeometry(60, 60, this.gridSize - 1, this.gridSize - 1);
	geometry.rotateX(-Math.PI / 2);

	// Store original vertices
	this.vertices = geometry.attributes.position.array;
	this.heights = new Array(this.vertices.length / 3).fill(0);

	// Create material
	const material = new THREE.MeshStandardMaterial({
	color: 0x4cc9f0,
	wireframe: false,
	flatShading: true,
	metalness: 0.3,
	roughness: 0.7,
	vertexColors: true
	});

	// Create vertex colors
	const count = geometry.attributes.position.count;
	const colors = new Float32Array(count * 3);

	for (let i = 0; i < count; i++) {
	const x = geometry.attributes.position.array[i * 3];
	const z = geometry.attributes.position.array[i * 3 + 2];
	const distance = Math.sqrt(x * x + z * z);
	const normalizedDistance = Math.min(1, distance / 30);

	// Default blue color scheme
	colors[i * 3] = 0.2 + normalizedDistance * 0.2; // R
	colors[i * 3 + 1] = 0.5 + normalizedDistance * 0.3; // G
	colors[i * 3 + 2] = 0.8; // B
	}

	geometry.setAttribute('color', new THREE.BufferAttribute(colors, 3));

	// Create and add mesh
	this.terrain = new THREE.Mesh(geometry, material);
	this.terrain.position.y = -10;
	this.scene.add(this.terrain);
	}

	updateTerrainColors() {
	const colors = this.terrain.geometry.attributes.color.array;
	const count = this.terrain.geometry.attributes.position.count;

	for (let i = 0; i < count; i++) {
	const x = this.terrain.geometry.attributes.position.array[i * 3];
	const z = this.terrain.geometry.attributes.position.array[i * 3 + 2];
	const distance = Math.sqrt(x * x + z * z);
	const normalizedDistance = Math.min(1, distance / 30);
	const height = this.heights[i] / 10; // Normalized height

	// Apply different color schemes
	if (this.colorScheme === 'blue') {
	colors[i * 3] = 0.2 + normalizedDistance * 0.2; // R
	colors[i * 3 + 1] = 0.5 + normalizedDistance * 0.3; // G
	colors[i * 3 + 2] = 0.8 - height * 0.3; // B
	} else if (this.colorScheme === 'red') {
	colors[i * 3] = 0.8 - height * 0.3; // R
	colors[i * 3 + 1] = 0.2 + normalizedDistance * 0.2; // G
	colors[i * 3 + 2] = 0.3 + normalizedDistance * 0.3; // B
	} else if (this.colorScheme === 'rainbow') {
	// Rainbow color scheme
	const hue = (normalizedDistance + height) * 360;
	const saturation = 0.8;
	const lightness = 0.5 + height * 0.3;

	// Convert HSL to RGB
	const c = (1 - Math.abs(2 * lightness - 1)) * saturation;
	const x = c * (1 - Math.abs((hue / 60) % 2 - 1));
	const m = lightness - c / 2;
	let r, g, b;

	if (hue < 60) {
	[r, g, b] = [c, x, 0];
	} else if (hue < 120) {
	[r, g, b] = [x, c, 0];
	} else if (hue < 180) {
	[r, g, b] = [0, c, x];
	} else if (hue < 240) {
	[r, g, b] = [0, x, c];
	} else if (hue < 300) {
	[r, g, b] = [x, 0, c];
	} else {
	[r, g, b] = [c, 0, x];
	}

	colors[i * 3] = r + m;
	colors[i * 3 + 1] = g + m;
	colors[i * 3 + 2] = b + m;
	}
	}

	this.terrain.geometry.attributes.color.needsUpdate = true;
	}

	animate() {
	requestAnimationFrame(() => this.animate());

	// Update terrain based on audio data
	if (this.isRecording && this.dataArray) {
	this.updateTerrainGeometry();
	} else {
	// Idle animation when not recording
	this.idleAnimation();
	}

	// Render scene
	this.renderer.render(this.scene, this.camera);
	}

	updateTerrainGeometry() {
	// Get frequency data
	this.analyser.getByteFrequencyData(this.dataArray);

	// Calculate the number of frequency bins to use based on the frequency range slider
	const maxBinIndex = Math.floor(this.dataArray.length * (this.maxFrequencyPercent / 100));

	// Update vertices based on frequency data
	for (let i = 0; i < this.gridSize; i++) {
	for (let j = 0; j < this.gridSize; j++) {
	const index = i * this.gridSize + j;
	const vertexIndex = index * 3 + 1; // Y component

	// Map grid position to frequency bin
	const binIndex = Math.floor((i * this.gridSize + j) * maxBinIndex / (this.gridSize * this.gridSize));

	// Get amplitude from frequency data
	const amplitude = this.dataArray[binIndex] / 255.0;

	// Apply sensitivity multiplier
	const heightValue = amplitude * (this.sensitivity * 2);

	// Apply depth effect
	const distanceFromCenter = Math.sqrt(
	Math.pow((i - this.gridSize / 2) / (this.gridSize / 2), 2) +
	Math.pow((j - this.gridSize / 2) / (this.gridSize / 2), 2)
	);

	// Apply distance falloff based on depth setting
	const falloff = Math.max(0, 1 - distanceFromCenter * (1 - this.depth / 10));

	// Calculate new height
	this.heights[index] = heightValue * 10 * falloff;

	// Update vertex position
	this.vertices[vertexIndex] = this.heights[index];
	}
	}

	// Update colors
	this.updateTerrainColors();

	// Update geometry
	this.terrain.geometry.attributes.position.needsUpdate = true;
	}

	idleAnimation() {
	// Simple idle wave animation
	const time = Date.now() * 0.001;

	for (let i = 0; i < this.gridSize; i++) {
	for (let j = 0; j < this.gridSize; j++) {
	const index = i * this.gridSize + j;
	const vertexIndex = index * 3 + 1; // Y component

	const x = (i - this.gridSize / 2) / 5;
	const z = (j - this.gridSize / 2) / 5;

	// Generate a gentle wave pattern
	const height = Math.sin(x + time) * Math.cos(z + time) * 0.5;

	// Store height for color calculations
	this.heights[index] = height * 3;

	// Update vertex position
	this.vertices[vertexIndex] = height * 3;
	}
	}

	// Update colors
	this.updateTerrainColors();

	// Update geometry
	this.terrain.geometry.attributes.position.needsUpdate = true;
	}

	onWindowResize() {
	// Update camera aspect ratio
	this.camera.aspect = window.innerWidth / window.innerHeight;
	this.camera.updateProjectionMatrix();

	// Update renderer size
	this.renderer.setSize(window.innerWidth, window.innerHeight);
	}

	async startMicrophone() {
	try {
	// Request microphone access
	const stream = await navigator.mediaDevices.getUserMedia({ audio: true });

	// Create audio context
	this.audioContext = new (window.AudioContext \|\| window.webkitAudioContext)();

	// Create analyzer
	this.analyser = this.audioContext.createAnalyser();
	this.analyser.fftSize = 2048;
	this.analyser.smoothingTimeConstant = 0.85;

	// Create buffer for frequency data
	this.dataArray = new Uint8Array(this.analyser.frequencyBinCount);

	// Connect microphone to analyzer
	this.source = this.audioContext.createMediaStreamSource(stream);
	this.source.connect(this.analyser);

	// Update UI
	this.isRecording = true;
	this.updateUIState();

	} catch (error) {
	console.error('Error accessing microphone:', error);
	this.statusText.textContent = 'Microphone access denied';
	}
	}

	stopMicrophone() {
	if (this.source) {
	this.source.disconnect();
	this.source = null;
	}

	if (this.audioContext) {
	this.audioContext.close().then(() => {
	this.audioContext = null;
	this.analyser = null;
	this.dataArray = null;

	this.isRecording = false;
	this.updateUIState();
	});
	} else {
	this.isRecording = false;
	this.updateUIState();
	}
	}

	updateUIState() {
	if (this.isRecording) {
	this.startBtn.innerHTML = '<span class="btn-icon">■</span> Stop Microphone';
	this.startBtn.classList.add('recording');
	this.statusDot.classList.add('active');
	this.statusText.textContent = 'Microphone active';
	} else {
	this.startBtn.innerHTML = '<span class="btn-icon">◉</span> Start Microphone';
	this.startBtn.classList.remove('recording');
	this.statusDot.classList.remove('active');
	this.statusText.textContent = 'Microphone inactive';
	}
	}

	initControls() {
	// Start/stop button
	this.startBtn.addEventListener('click', () => {
	if (this.isRecording) {
	this.stopMicrophone();
	} else {
	this.startMicrophone();
	}
	});

	// Frequency range slider
	this.frequencyRange.addEventListener('input', (e) => {
	this.maxFrequencyPercent = parseInt(e.target.value);
	this.frequencyValue.textContent = `${this.maxFrequencyPercent}%`;
	});

	// Sensitivity slider
	this.sensitivityRange.addEventListener('input', (e) => {
	this.sensitivity = parseInt(e.target.value);
	this.sensitivityValue.textContent = this.sensitivity;
	});

	// Depth slider
	this.depthRange.addEventListener('input', (e) => {
	this.depth = parseInt(e.target.value);
	this.depthValue.textContent = this.depth;
	});

	// Color scheme radio buttons
	this.colorOptions.forEach(option => {
	option.addEventListener('change', (e) => {
	this.colorScheme = e.target.value;
	this.updateTerrainColors();
	});
	});

	// Toggle panel button
	this.togglePanel.addEventListener('click', () => {
	this.controlPanel.classList.toggle('collapsed');
	this.togglePanel.textContent = this.controlPanel.classList.contains('collapsed') ? '≫' : '≡';
	});
	}
	}

	// Initialize the visualizer when the page loads
	window.addEventListener('DOMContentLoaded', () => {
	new AudioVisualizer();
	});
	</script>
	</body>
	</html>