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Update index.html
Browse files- index.html +451 -19
index.html
CHANGED
@@ -1,19 +1,451 @@
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<!DOCTYPE html>
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<html lang="ja">
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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>歌唱類似度評価システム</title>
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<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/essentia.js.umd.min.js"></script>
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<style>
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body {
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font-family: Arial, sans-serif;
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max-width: 800px;
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margin: 0 auto;
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padding: 20px;
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line-height: 1.6;
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}
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.container {
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display: flex;
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flex-direction: column;
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gap: 20px;
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}
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.control-panel {
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display: flex;
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flex-direction: column;
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gap: 15px;
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padding: 20px;
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border: 1px solid #ddd;
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border-radius: 8px;
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background-color: #f9f9f9;
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}
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button {
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padding: 10px 15px;
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background-color: #4CAF50;
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color: white;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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font-size: 16px;
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}
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button:disabled {
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background-color: #cccccc;
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cursor: not-allowed;
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}
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.mode-selector {
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display: flex;
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gap: 15px;
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margin-bottom: 10px;
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}
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.mode-option {
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display: flex;
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align-items: center;
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gap: 5px;
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}
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.result {
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margin-top: 20px;
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padding: 15px;
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border: 1px solid #ddd;
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border-radius: 8px;
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background-color: #f0f8ff;
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display: none;
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}
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.progress-bar {
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width: 100%;
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background-color: #e0e0e0;
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border-radius: 4px;
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margin: 10px 0;
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}
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.progress {
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height: 20px;
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border-radius: 4px;
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background-color: #4CAF50;
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width: 0%;
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transition: width 0.3s;
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}
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.audio-container {
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display: flex;
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justify-content: space-between;
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gap: 20px;
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margin-top: 20px;
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}
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.audio-box {
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flex: 1;
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padding: 10px;
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border: 1px solid #ddd;
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border-radius: 8px;
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}
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h2 {
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margin-top: 0;
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color: #333;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>歌唱類似度評価システム</h1>
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<div class="control-panel">
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<h2>手本音声選択</h2>
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<select id="sampleSelect">
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<option value="sample1.mp3">サンプル曲1</option>
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<option value="sample2.mp3">サンプル曲2</option>
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<option value="sample3.mp3">サンプル曲3</option>
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</select>
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<h2>録音モード選択</h2>
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<div class="mode-selector">
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<div class="mode-option">
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<input type="radio" id="micMode" name="recordingMode" value="mic" checked>
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<label for="micMode">マイクで録音</label>
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</div>
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<div class="mode-option">
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<input type="radio" id="uploadMode" name="recordingMode" value="upload">
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<label for="uploadMode">ファイルをアップロード</label>
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</div>
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</div>
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<div id="uploadContainer" style="display: none;">
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<input type="file" id="audioUpload" accept="audio/*">
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</div>
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<button id="startButton">スタート</button>
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<button id="stopButton" disabled>ストップ</button>
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<div class="progress-bar">
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<div class="progress" id="progressBar"></div>
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</div>
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</div>
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<div class="result" id="resultContainer">
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<h2>結果</h2>
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<p>類似度スコア: <span id="score">0</span>%</p>
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<div class="audio-container">
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<div class="audio-box">
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<h3>手本音声</h3>
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<audio controls id="referenceAudio"></audio>
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</div>
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<div class="audio-box">
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<h3>あなたの歌唱</h3>
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<audio controls id="userAudio"></audio>
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</div>
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</div>
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</div>
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</div>
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<script>
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// グローバル変数
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let audioContext;
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let mediaRecorder;
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let recordedChunks = [];
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let referenceAudio = document.getElementById('referenceAudio');
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let startButton = document.getElementById('startButton');
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let stopButton = document.getElementById('stopButton');
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let progressBar = document.getElementById('progressBar');
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let resultContainer = document.getElementById('resultContainer');
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let scoreElement = document.getElementById('score');
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let userAudio = document.getElementById('userAudio');
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let sampleSelect = document.getElementById('sampleSelect');
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let micModeRadio = document.getElementById('micMode');
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let uploadModeRadio = document.getElementById('uploadMode');
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let uploadContainer = document.getElementById('uploadContainer');
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let audioUpload = document.getElementById('audioUpload');
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// モード選択の切り替え
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micModeRadio.addEventListener('change', () => {
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uploadContainer.style.display = 'none';
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});
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uploadModeRadio.addEventListener('change', () => {
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uploadContainer.style.display = 'block';
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});
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// スタートボタンの処理
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startButton.addEventListener('click', async () => {
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try {
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startButton.disabled = true;
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stopButton.disabled = false;
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resultContainer.style.display = 'none';
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progressBar.style.width = '0%';
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// 手本音声の設定
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const sampleFile = sampleSelect.value;
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referenceAudio.src = sampleFile;
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if (micModeRadio.checked) {
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// マイク録音モード
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await startMicrophoneRecording();
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} else {
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// ファイルアップロードモード
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if (!audioUpload.files[0]) {
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alert('音声ファイルを選択してください');
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startButton.disabled = false;
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return;
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}
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}
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// 手本音声再生開始
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referenceAudio.play();
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// 再生進捗をプログレスバーで表示
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referenceAudio.addEventListener('timeupdate', updateProgressBar);
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// 手本音声終了時の処理
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referenceAudio.addEventListener('ended', () => {
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stopRecording();
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});
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} catch (error) {
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console.error('Error:', error);
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alert('エラーが発生しました: ' + error.message);
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210 |
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startButton.disabled = false;
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stopButton.disabled = true;
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}
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});
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214 |
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// ストップボタンの処理
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216 |
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stopButton.addEventListener('click', () => {
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stopRecording();
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});
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// マイク録音開始
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async function startMicrophoneRecording() {
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222 |
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recordedChunks = [];
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const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
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224 |
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audioContext = new (window.AudioContext || window.webkitAudioContext)();
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mediaRecorder = new MediaRecorder(stream);
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227 |
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mediaRecorder.ondataavailable = (event) => {
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if (event.data.size > 0) {
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recordedChunks.push(event.data);
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}
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};
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mediaRecorder.start();
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}
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// 録音停止
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function stopRecording() {
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// プログレスバーの更新を停止
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referenceAudio.removeEventListener('timeupdate', updateProgressBar);
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if (micModeRadio.checked && mediaRecorder && mediaRecorder.state !== 'inactive') {
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mediaRecorder.stop();
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mediaRecorder.onstop = processRecordedAudio;
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} else if (uploadModeRadio.checked) {
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processUploadedAudio();
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} else {
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startButton.disabled = false;
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stopButton.disabled = true;
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}
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}
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// 録音データの処理
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254 |
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function processRecordedAudio() {
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255 |
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const audioBlob = new Blob(recordedChunks, { type: 'audio/wav' });
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256 |
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const audioUrl = URL.createObjectURL(audioBlob);
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userAudio.src = audioUrl;
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// 音声解析を実行
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analyzeAudio(referenceAudio.src, audioBlob);
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}
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// アップロードファイルの処理
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264 |
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function processUploadedAudio() {
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265 |
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const file = audioUpload.files[0];
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266 |
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const audioUrl = URL.createObjectURL(file);
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267 |
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userAudio.src = audioUrl;
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268 |
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269 |
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// 音声解析を実行
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analyzeAudio(referenceAudio.src, file);
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}
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// プログレスバー更新
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274 |
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function updateProgressBar() {
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275 |
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const progress = (referenceAudio.currentTime / referenceAudio.duration) * 100;
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progressBar.style.width = `${progress}%`;
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277 |
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}
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279 |
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async function analyzeAudio(referenceSrc, userAudioData) {
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280 |
+
try {
|
281 |
+
// Essentia.jsの初期化
|
282 |
+
const Essentia = await essentiajs.Essentia();
|
283 |
+
const essentia = new Essentia(Essentia.FFTW); // FFTバックエンドを使用
|
284 |
+
|
285 |
+
// 参照音声とユーザー音声をデコード
|
286 |
+
const [referenceArrayBuffer, userArrayBuffer] = await Promise.all([
|
287 |
+
fetch(referenceSrc).then(res => res.arrayBuffer()),
|
288 |
+
readAudioData(userAudioData)
|
289 |
+
]);
|
290 |
+
|
291 |
+
const referenceAudioBuffer = await decodeAudioData(audioContext, referenceArrayBuffer);
|
292 |
+
const userAudioBuffer = await decodeAudioData(audioContext, userArrayBuffer);
|
293 |
+
|
294 |
+
// モノラル化とサンプルレートの統一
|
295 |
+
const referenceMono = convertToMono(referenceAudioBuffer);
|
296 |
+
const userMono = convertToMono(userAudioBuffer);
|
297 |
+
|
298 |
+
// 特徴量抽出
|
299 |
+
const referenceFeatures = extractFeatures(essentia, referenceMono);
|
300 |
+
const userFeatures = extractFeatures(essentia, userMono);
|
301 |
+
|
302 |
+
// 特徴量の正規化
|
303 |
+
normalizeFeatures(referenceFeatures);
|
304 |
+
normalizeFeatures(userFeatures);
|
305 |
+
|
306 |
+
// 類似度計算
|
307 |
+
const similarityScore = calculateSimilarity(
|
308 |
+
referenceFeatures.mfcc.flat(),
|
309 |
+
userFeatures.mfcc.flat()
|
310 |
+
);
|
311 |
+
|
312 |
+
// スコア表示 (0-100に変換)
|
313 |
+
const displayScore = Math.min(Math.max(Math.round(similarityScore * 100), 0), 100);
|
314 |
+
scoreElement.textContent = displayScore;
|
315 |
+
|
316 |
+
// 結果表示
|
317 |
+
resultContainer.style.display = 'block';
|
318 |
+
startButton.disabled = false;
|
319 |
+
stopButton.disabled = true;
|
320 |
+
|
321 |
+
// Essentiaインスタンスのクリーンアップ
|
322 |
+
essentia.delete();
|
323 |
+
|
324 |
+
} catch (error) {
|
325 |
+
console.error('分析エラー:', error);
|
326 |
+
alert('音声分析中にエラーが発生しました: ' + error.message);
|
327 |
+
startButton.disabled = false;
|
328 |
+
stopButton.disabled = true;
|
329 |
+
}
|
330 |
+
}
|
331 |
+
|
332 |
+
// 補助関数群
|
333 |
+
async function readAudioData(audioData) {
|
334 |
+
if (audioData instanceof Blob) {
|
335 |
+
return new Response(audioData).arrayBuffer();
|
336 |
+
}
|
337 |
+
return audioData;
|
338 |
+
}
|
339 |
+
|
340 |
+
async function decodeAudioData(context, arrayBuffer) {
|
341 |
+
return new Promise((resolve, reject) => {
|
342 |
+
context.decodeAudioData(arrayBuffer, resolve, reject);
|
343 |
+
});
|
344 |
+
}
|
345 |
+
|
346 |
+
function convertToMono(audioBuffer) {
|
347 |
+
if (audioBuffer.numberOfChannels === 1) return audioBuffer.getChannelData(0);
|
348 |
+
|
349 |
+
const left = audioBuffer.getChannelData(0);
|
350 |
+
const right = audioBuffer.numberOfChannels > 1 ?
|
351 |
+
audioBuffer.getChannelData(1) : left;
|
352 |
+
const mono = new Float32Array(left.length);
|
353 |
+
|
354 |
+
for (let i = 0; i < left.length; i++) {
|
355 |
+
mono[i] = (left[i] + right[i]) / 2;
|
356 |
+
}
|
357 |
+
return mono;
|
358 |
+
}
|
359 |
+
|
360 |
+
function extractFeatures(essentia, audioData) {
|
361 |
+
// パラメータ設定
|
362 |
+
const frameSize = 2048;
|
363 |
+
const hopSize = 1024;
|
364 |
+
const sampleRate = 44100;
|
365 |
+
|
366 |
+
// フレームごとに特徴量を抽出
|
367 |
+
const frames = essentia.FrameGenerator(audioData, frameSize, hopSize);
|
368 |
+
|
369 |
+
const features = {
|
370 |
+
mfcc: [],
|
371 |
+
spectral: {
|
372 |
+
centroid: [],
|
373 |
+
rolloff: [],
|
374 |
+
flux: []
|
375 |
+
}
|
376 |
+
};
|
377 |
+
|
378 |
+
for (let i = 0; i < frames.size(); i++) {
|
379 |
+
const frame = frames.get(i);
|
380 |
+
|
381 |
+
// MFCC (メル周波数ケプストラム係数)
|
382 |
+
const mfcc = essentia.MFCC(
|
383 |
+
essentia.Spectrum(essentia.Windowing(frame, 'hann', frameSize, false)).bands;
|
384 |
+
features.mfcc.push(mfcc);
|
385 |
+
|
386 |
+
// スペクトル特徴量
|
387 |
+
const spectrum = essentia.Spectrum(essentia.Windowing(frame, 'hann', frameSize, false));
|
388 |
+
features.spectral.centroid.push(
|
389 |
+
essentia.SpectralCentroid(spectrum).centroid
|
390 |
+
);
|
391 |
+
features.spectral.rolloff.push(
|
392 |
+
essentia.SpectralRollOff(spectrum, 0.85).rollOff
|
393 |
+
);
|
394 |
+
features.spectral.flux.push(
|
395 |
+
essentia.Flux(spectrum).flux
|
396 |
+
);
|
397 |
+
|
398 |
+
frame.delete();
|
399 |
+
}
|
400 |
+
|
401 |
+
frames.delete();
|
402 |
+
return features;
|
403 |
+
}
|
404 |
+
|
405 |
+
function normalizeFeatures(features) {
|
406 |
+
// MFCCの正規化 (0-1範囲に)
|
407 |
+
const mfccFlat = features.mfcc.flat();
|
408 |
+
const min = Math.min(...mfccFlat);
|
409 |
+
const max = Math.max(...mfccFlat);
|
410 |
+
|
411 |
+
for (let i = 0; i < features.mfcc.length; i++) {
|
412 |
+
for (let j = 0; j < features.mfcc[i].length; j++) {
|
413 |
+
features.mfcc[i][j] = (features.mfcc[i][j] - min) / (max - min);
|
414 |
+
}
|
415 |
+
}
|
416 |
+
|
417 |
+
// スペクトル特徴量の正規化
|
418 |
+
['centroid', 'rolloff', 'flux'].forEach(key => {
|
419 |
+
const arr = features.spectral[key];
|
420 |
+
const min = Math.min(...arr);
|
421 |
+
const max = Math.max(...arr);
|
422 |
+
|
423 |
+
for (let i = 0; i < arr.length; i++) {
|
424 |
+
arr[i] = (arr[i] - min) / (max - min);
|
425 |
+
}
|
426 |
+
});
|
427 |
+
}
|
428 |
+
|
429 |
+
function calculateSimilarity(vec1, vec2) {
|
430 |
+
// コサイン類似度計算
|
431 |
+
if (vec1.length !== vec2.length || vec1.length === 0) return 0;
|
432 |
+
|
433 |
+
let dotProduct = 0;
|
434 |
+
let norm1 = 0;
|
435 |
+
let norm2 = 0;
|
436 |
+
|
437 |
+
for (let i = 0; i < vec1.length; i++) {
|
438 |
+
dotProduct += vec1[i] * vec2[i];
|
439 |
+
norm1 += vec1[i] * vec1[i];
|
440 |
+
norm2 += vec2[i] * vec2[i];
|
441 |
+
}
|
442 |
+
|
443 |
+
norm1 = Math.sqrt(norm1);
|
444 |
+
norm2 = Math.sqrt(norm2);
|
445 |
+
|
446 |
+
if (norm1 === 0 || norm2 === 0) return 0;
|
447 |
+
return dotProduct / (norm1 * norm2);
|
448 |
+
}
|
449 |
+
</script>
|
450 |
+
</body>
|
451 |
+
</html>
|