| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta charset="UTF-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| <title>LFM2.5-Audio - WebGPU Demo</title> |
| <link rel="preconnect" href="https://fonts.googleapis.com"> |
| <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> |
| <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap" rel="stylesheet"> |
| <style> |
| * { |
| box-sizing: border-box; |
| margin: 0; |
| padding: 0; |
| } |
| |
| body { |
| font-family: 'JetBrains Mono', monospace; |
| background: #fafafa; |
| color: #0a0a0a; |
| min-height: 100vh; |
| display: flex; |
| flex-direction: column; |
| -webkit-font-smoothing: antialiased; |
| -moz-osx-font-smoothing: grayscale; |
| } |
| |
| header { |
| background: #fff; |
| padding: 1.25rem 1.5rem; |
| border-bottom: 1px solid rgba(0, 0, 0, 0.08); |
| display: flex; |
| align-items: center; |
| gap: 1rem; |
| } |
| |
| header .logo { |
| display: flex; |
| align-items: center; |
| gap: 0.75rem; |
| } |
| |
| header .logo svg { |
| width: 28px; |
| height: 28px; |
| } |
| |
| header h1 { |
| font-size: 1.1rem; |
| font-weight: 600; |
| letter-spacing: -0.02em; |
| } |
| |
| header .badge { |
| font-size: 0.65rem; |
| padding: 0.2rem 0.5rem; |
| border-radius: 4px; |
| font-weight: 500; |
| background: #0a0a0a; |
| color: #fff; |
| letter-spacing: 0.02em; |
| } |
| |
| .controls { |
| display: flex; |
| gap: 1rem; |
| padding: 1rem 1.5rem; |
| background: #fff; |
| border-bottom: 1px solid rgba(0, 0, 0, 0.08); |
| flex-wrap: wrap; |
| align-items: center; |
| } |
| |
| .controls label { |
| display: flex; |
| align-items: center; |
| gap: 0.5rem; |
| font-size: 0.8rem; |
| font-weight: 500; |
| color: #666; |
| } |
| |
| .controls select { |
| padding: 0.5rem 0.75rem; |
| border-radius: 6px; |
| border: 1px solid rgba(0, 0, 0, 0.12); |
| background: #fff; |
| color: #0a0a0a; |
| font-size: 0.8rem; |
| font-family: 'JetBrains Mono', monospace; |
| cursor: pointer; |
| transition: all 0.2s ease; |
| } |
| |
| .controls select:hover { |
| border-color: rgba(0, 0, 0, 0.24); |
| } |
| |
| .controls select:focus { |
| outline: none; |
| border-color: #0a0a0a; |
| } |
| |
| .controls button { |
| padding: 0.5rem 1rem; |
| border-radius: 6px; |
| border: 1px solid #0a0a0a; |
| background: #0a0a0a; |
| color: #fff; |
| font-size: 0.8rem; |
| font-family: 'JetBrains Mono', monospace; |
| font-weight: 500; |
| cursor: pointer; |
| transition: all 0.2s ease; |
| } |
| |
| .controls button:disabled { |
| opacity: 0.4; |
| cursor: not-allowed; |
| } |
| |
| .controls button:hover:not(:disabled) { |
| background: #333; |
| } |
| |
| .controls button.secondary { |
| background: transparent; |
| color: #0a0a0a; |
| } |
| |
| .controls button.secondary:hover:not(:disabled) { |
| background: rgba(0, 0, 0, 0.05); |
| } |
| |
| .storage-info { |
| display: flex; |
| align-items: center; |
| gap: 0.5rem; |
| margin-left: auto; |
| font-size: 0.75rem; |
| color: #888; |
| } |
| |
| .text-btn { |
| background: none; |
| border: none; |
| padding: 0.25rem 0.5rem; |
| font-size: 0.7rem; |
| font-family: 'JetBrains Mono', monospace; |
| cursor: pointer; |
| color: #888; |
| transition: color 0.2s ease; |
| } |
| |
| .text-btn:hover:not(:disabled) { |
| color: #0a0a0a; |
| } |
| |
| .text-btn.danger { |
| color: #dc2626; |
| } |
| |
| .text-btn.danger:hover:not(:disabled) { |
| color: #b91c1c; |
| } |
| |
| .text-btn:disabled { |
| color: #ccc; |
| cursor: not-allowed; |
| } |
| |
| #status { |
| padding: 0.6rem 1.5rem; |
| background: #f5f5f5; |
| font-size: 0.75rem; |
| color: #666; |
| border-bottom: 1px solid rgba(0, 0, 0, 0.05); |
| } |
| |
| #status.error { |
| background: #fef2f2; |
| color: #dc2626; |
| } |
| |
| #status.success { |
| background: #f0fdf4; |
| color: #16a34a; |
| } |
| |
| .chat-container { |
| flex: 1; |
| overflow-y: auto; |
| padding: 1.5rem; |
| display: flex; |
| flex-direction: column; |
| gap: 1rem; |
| background: #fafafa; |
| } |
| |
| .message { |
| max-width: 75%; |
| padding: 1rem 1.25rem; |
| border-radius: 12px; |
| line-height: 1.6; |
| white-space: pre-wrap; |
| font-size: 0.85rem; |
| } |
| |
| .message.user { |
| align-self: flex-end; |
| background: #0a0a0a; |
| color: #fff; |
| } |
| |
| .message.assistant { |
| align-self: flex-start; |
| background: #fff; |
| border: 1px solid rgba(0, 0, 0, 0.08); |
| } |
| |
| .message.generating { |
| opacity: 0.7; |
| } |
| |
| .message audio { |
| margin-top: 0.75rem; |
| width: 100%; |
| max-width: 360px; |
| min-height: 40px; |
| height: auto; |
| border-radius: 8px; |
| display: block; |
| } |
| |
| .input-area { |
| padding: 1.25rem 1.5rem; |
| background: #fff; |
| border-top: 1px solid rgba(0, 0, 0, 0.08); |
| } |
| |
| .audio-preview { |
| display: flex; |
| gap: 0.5rem; |
| margin-bottom: 0.75rem; |
| flex-wrap: wrap; |
| } |
| |
| .audio-preview-item { |
| position: relative; |
| display: flex; |
| align-items: center; |
| gap: 0.5rem; |
| padding: 0.5rem 0.75rem; |
| background: #f5f5f5; |
| border-radius: 8px; |
| border: 1px solid rgba(0, 0, 0, 0.08); |
| font-size: 0.8rem; |
| } |
| |
| .audio-preview-item .audio-icon { |
| font-size: 1rem; |
| } |
| |
| .audio-preview-item .audio-name { |
| max-width: 140px; |
| overflow: hidden; |
| text-overflow: ellipsis; |
| white-space: nowrap; |
| font-weight: 500; |
| } |
| |
| .audio-preview-item .audio-info { |
| font-size: 0.7rem; |
| color: #888; |
| } |
| |
| .audio-preview-item .remove-btn { |
| position: absolute; |
| top: -6px; |
| right: -6px; |
| width: 18px; |
| height: 18px; |
| border-radius: 50%; |
| background: #0a0a0a; |
| color: white; |
| border: none; |
| cursor: pointer; |
| font-size: 10px; |
| display: flex; |
| align-items: center; |
| justify-content: center; |
| transition: background 0.2s ease; |
| } |
| |
| .audio-preview-item .remove-btn:hover { |
| background: #333; |
| } |
| |
| .input-row { |
| display: flex; |
| gap: 0.5rem; |
| } |
| |
| #userInput { |
| flex: 1; |
| padding: 0.75rem 1rem; |
| border-radius: 8px; |
| border: 1px solid rgba(0, 0, 0, 0.12); |
| background: #fff; |
| color: #0a0a0a; |
| font-size: 0.85rem; |
| font-family: 'JetBrains Mono', monospace; |
| resize: none; |
| transition: border-color 0.2s ease; |
| } |
| |
| #userInput:focus { |
| outline: none; |
| border-color: #0a0a0a; |
| } |
| |
| #userInput::placeholder { |
| color: #aaa; |
| } |
| |
| .input-buttons { |
| display: flex; |
| gap: 0.35rem; |
| } |
| |
| #audioBtn, #recordBtn { |
| padding: 0.6rem; |
| border-radius: 8px; |
| border: 1px solid rgba(0, 0, 0, 0.12); |
| background: #fff; |
| color: #0a0a0a; |
| cursor: pointer; |
| font-size: 1.1rem; |
| transition: all 0.2s ease; |
| display: flex; |
| align-items: center; |
| justify-content: center; |
| width: 42px; |
| height: 42px; |
| } |
| |
| #audioBtn:hover:not(:disabled), #recordBtn:hover:not(:disabled) { |
| background: #f5f5f5; |
| border-color: rgba(0, 0, 0, 0.24); |
| } |
| |
| #audioBtn:disabled, #recordBtn:disabled { |
| opacity: 0.4; |
| cursor: not-allowed; |
| } |
| |
| #recordBtn.recording { |
| background: #dc2626; |
| border-color: #dc2626; |
| color: #fff; |
| animation: pulse 1.5s infinite; |
| } |
| |
| @keyframes pulse { |
| 0%, 100% { opacity: 1; transform: scale(1); } |
| 50% { opacity: 0.8; transform: scale(0.98); } |
| } |
| |
| #sendBtn { |
| padding: 0.6rem 1.25rem; |
| border-radius: 8px; |
| border: none; |
| background: #0a0a0a; |
| color: white; |
| font-weight: 500; |
| font-family: 'JetBrains Mono', monospace; |
| font-size: 0.8rem; |
| cursor: pointer; |
| transition: all 0.2s ease; |
| } |
| |
| #sendBtn:hover:not(:disabled) { |
| background: #333; |
| } |
| |
| #sendBtn:disabled { |
| opacity: 0.4; |
| cursor: not-allowed; |
| } |
| |
| .stats { |
| font-size: 0.65rem; |
| color: #888; |
| margin-top: 0.5rem; |
| font-weight: 400; |
| } |
| |
| .progress-bar { |
| position: relative; |
| height: 3px; |
| background: #eee; |
| overflow: hidden; |
| } |
| |
| .progress-fill { |
| height: 100%; |
| background: #0a0a0a; |
| width: 0%; |
| transition: width 0.3s ease; |
| } |
| |
| .progress-text { |
| position: absolute; |
| top: 8px; |
| left: 1.5rem; |
| font-size: 0.7rem; |
| color: #666; |
| } |
| |
| #audioInput { |
| display: none; |
| } |
| |
| .drop-overlay { |
| display: none; |
| position: fixed; |
| inset: 0; |
| background: rgba(255, 255, 255, 0.95); |
| border: 3px dashed #0a0a0a; |
| z-index: 1000; |
| align-items: center; |
| justify-content: center; |
| font-size: 1.25rem; |
| color: #0a0a0a; |
| font-weight: 500; |
| } |
| |
| .drop-overlay.active { |
| display: flex; |
| } |
| |
| .info-box { |
| background: #fff; |
| border: 1px solid rgba(0, 0, 0, 0.08); |
| border-radius: 12px; |
| padding: 1.5rem; |
| font-size: 0.8rem; |
| line-height: 1.7; |
| } |
| |
| .info-box h3 { |
| margin-bottom: 0.75rem; |
| font-size: 0.9rem; |
| font-weight: 600; |
| letter-spacing: -0.01em; |
| } |
| |
| .info-box p { |
| color: #444; |
| margin-bottom: 1rem; |
| } |
| |
| .info-box ul { |
| margin-left: 1.25rem; |
| color: #444; |
| } |
| |
| .info-box li { |
| margin-bottom: 0.5rem; |
| } |
| |
| .info-box strong { |
| color: #0a0a0a; |
| font-weight: 600; |
| } |
| |
| .info-box .note { |
| margin-top: 1rem; |
| padding-top: 1rem; |
| border-top: 1px solid rgba(0, 0, 0, 0.06); |
| font-size: 0.75rem; |
| color: #888; |
| } |
| |
| |
| .spinner { |
| display: none; |
| align-items: center; |
| gap: 0.5rem; |
| padding: 0.75rem 1rem; |
| background: #fff; |
| border: 1px solid rgba(0, 0, 0, 0.08); |
| border-radius: 8px; |
| font-size: 0.8rem; |
| color: #666; |
| } |
| |
| .spinner.active { |
| display: flex; |
| } |
| |
| .spinner-icon { |
| width: 16px; |
| height: 16px; |
| border: 2px solid rgba(0, 0, 0, 0.1); |
| border-top-color: #0a0a0a; |
| border-radius: 50%; |
| animation: spin 0.8s linear infinite; |
| } |
| |
| @keyframes spin { |
| to { transform: rotate(360deg); } |
| } |
| |
| .spinner-text { |
| flex: 1; |
| } |
| |
| .spinner-stats { |
| font-size: 0.7rem; |
| color: #888; |
| font-variant-numeric: tabular-nums; |
| } |
| |
| |
| ::-webkit-scrollbar { |
| width: 6px; |
| } |
| |
| ::-webkit-scrollbar-track { |
| background: transparent; |
| } |
| |
| ::-webkit-scrollbar-thumb { |
| background: rgba(0, 0, 0, 0.15); |
| border-radius: 3px; |
| } |
| |
| ::-webkit-scrollbar-thumb:hover { |
| background: rgba(0, 0, 0, 0.25); |
| } |
| </style> |
| </head> |
| <body> |
| <header> |
| <div class="logo"> |
| <svg viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg"> |
| <circle cx="50" cy="50" r="45" stroke="#0a0a0a" stroke-width="6"/> |
| <circle cx="50" cy="50" r="20" fill="#0a0a0a"/> |
| </svg> |
| <h1>LFM2.5-Audio <span class="badge">WebGPU</span></h1> |
| </div> |
| </header> |
|
|
| <div class="controls"> |
| <label> |
| Model |
| <select id="modelSelect"></select> |
| </label> |
| <button id="loadBtn">Load Model</button> |
| <label> |
| Mode |
| <select id="audioModeSelect" title="Audio interaction mode"> |
| <option value="asr">ASR (Speech → Text)</option> |
| <option value="tts">TTS (Text → Speech)</option> |
| <option value="interleaved" selected>Interleaved</option> |
| </select> |
| </label> |
| <button id="clearBtn" class="secondary" title="Reset conversation state (clears KV cache)">New Chat</button> |
| <div class="storage-info"> |
| <span id="cacheInfo"></span> |
| <button id="clearCacheBtn" class="text-btn danger" title="Delete downloaded model files">Clear Cache</button> |
| </div> |
| </div> |
|
|
| <div id="progressBar" class="progress-bar" style="display: none;"> |
| <div id="progressFill" class="progress-fill"></div> |
| <span id="progressText" class="progress-text"></span> |
| </div> |
|
|
| <div id="status">Select a model and click "Load Model" to start</div> |
|
|
| <div class="chat-container" id="chatContainer"> |
| <div class="info-box"> |
| <h3>LFM2.5-Audio Demo</h3> |
| <p>Speech recognition, text-to-speech, and conversational audio running entirely in your browser.</p> |
| <ul> |
| <li><strong>ASR</strong> — Record or upload audio to transcribe to text</li> |
| <li><strong>TTS</strong> — Type text to generate natural speech</li> |
| <li><strong>Interleaved</strong> — Have a spoken conversation with the model (multi-turn with stateful KV cache)</li> |
| </ul> |
| <p class="note">Requires WebGPU-enabled browser (Chrome/Edge 113+). Enable at chrome://flags if needed. Use "New Chat" to reset conversation.</p> |
| </div> |
| </div> |
|
|
| <div class="input-area"> |
| <div class="spinner" id="spinner"> |
| <div class="spinner-icon"></div> |
| <span class="spinner-text" id="spinnerText">Processing...</span> |
| <span class="spinner-stats" id="spinnerStats"></span> |
| </div> |
| <div class="audio-preview" id="audioPreview"></div> |
| <div class="input-row"> |
| <textarea id="userInput" rows="2" placeholder="Type a message or record audio..." disabled></textarea> |
| <div class="input-buttons"> |
| <button id="audioBtn" title="Upload audio file" disabled>📁</button> |
| <button id="recordBtn" title="Record from microphone" disabled>🎤</button> |
| <button id="sendBtn" disabled>Send</button> |
| </div> |
| </div> |
| <input type="file" id="audioInput" accept="audio/*"> |
| </div> |
|
|
| <div class="drop-overlay" id="dropOverlay">Drop audio file here</div> |
|
|
| <script type="module" src="./main.js"></script> |
| </body> |
| </html> |
|
|
