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<!DOCTYPE html>
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<html lang="en">
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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>Audio Transcription</title>
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<style>
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body {
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font-family: 'Inter', sans-serif;
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margin: 20px;
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text-align: center;
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}
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#recordButton {
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width: 80px;
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height: 80px;
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font-size: 36px;
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border: none;
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border-radius: 50%;
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background-color: white;
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cursor: pointer;
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box-shadow: 0 0px 10px rgba(0, 0, 0, 0.2);
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transition: background-color 0.3s ease, transform 0.2s ease;
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}
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#recordButton.recording {
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background-color: #ff4d4d;
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color: white;
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}
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#recordButton:active {
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transform: scale(0.95);
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}
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#status {
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margin-top: 20px;
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font-size: 16px;
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color: #333;
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}
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.settings-container {
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display: flex;
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justify-content: center;
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align-items: center;
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gap: 15px;
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margin-top: 20px;
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}
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.settings {
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display: flex;
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flex-direction: column;
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align-items: flex-start;
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gap: 5px;
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}
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#chunkSelector,
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#websocketInput {
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font-size: 16px;
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padding: 5px;
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border-radius: 5px;
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border: 1px solid #ddd;
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background-color: #f9f9f9;
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}
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#websocketInput {
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width: 200px;
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}
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#chunkSelector:focus,
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#websocketInput:focus {
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outline: none;
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border-color: #007bff;
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}
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label {
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font-size: 14px;
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}
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#linesTranscript {
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margin: 20px auto;
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max-width: 600px;
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text-align: left;
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font-size: 16px;
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}
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#linesTranscript p {
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margin: 5px 0;
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}
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#linesTranscript strong {
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color: #333;
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}
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.buffer {
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color: rgb(180, 180, 180);
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font-style: italic;
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margin-left: 4px;
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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="settings-container">
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<button id="recordButton">🎙️</button>
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<div class="settings">
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<div>
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<label for="chunkSelector">Chunk size (ms):</label>
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<select id="chunkSelector">
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<option value="500" selected>500 ms</option>
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<option value="1000">1000 ms</option>
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<option value="2000">2000 ms</option>
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<option value="3000">3000 ms</option>
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<option value="4000">4000 ms</option>
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<option value="5000">5000 ms</option>
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</select>
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</div>
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<div>
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<label for="websocketInput">WebSocket URL:</label>
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<input id="websocketInput" type="text" value="ws://localhost:8000/asr" />
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</div>
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</div>
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</div>
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<p id="status"></p>
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<div id="linesTranscript"></div>
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<script>
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let isRecording = false;
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let websocket = null;
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let recorder = null;
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let chunkDuration = 500;
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let websocketUrl = "ws://localhost:8000/asr";
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let userClosing = false;
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const statusText = document.getElementById("status");
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const recordButton = document.getElementById("recordButton");
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const chunkSelector = document.getElementById("chunkSelector");
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const websocketInput = document.getElementById("websocketInput");
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const linesTranscriptDiv = document.getElementById("linesTranscript");
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chunkSelector.addEventListener("change", () => {
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chunkDuration = parseInt(chunkSelector.value);
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});
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websocketInput.addEventListener("change", () => {
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const urlValue = websocketInput.value.trim();
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if (!urlValue.startsWith("ws://") && !urlValue.startsWith("wss://")) {
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statusText.textContent = "Invalid WebSocket URL (must start with ws:// or wss://)";
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return;
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}
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websocketUrl = urlValue;
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statusText.textContent = "WebSocket URL updated. Ready to connect.";
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});
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function setupWebSocket() {
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return new Promise((resolve, reject) => {
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try {
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websocket = new WebSocket(websocketUrl);
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} catch (error) {
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statusText.textContent = "Invalid WebSocket URL. Please check and try again.";
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reject(error);
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return;
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}
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websocket.onopen = () => {
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statusText.textContent = "Connected to server.";
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resolve();
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};
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websocket.onclose = () => {
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if (userClosing) {
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statusText.textContent = "WebSocket closed by user.";
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} else {
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statusText.textContent =
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"Disconnected from the WebSocket server. (Check logs if model is loading.)";
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}
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userClosing = false;
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};
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websocket.onerror = () => {
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statusText.textContent = "Error connecting to WebSocket.";
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reject(new Error("Error connecting to WebSocket"));
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};
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websocket.onmessage = (event) => {
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const data = JSON.parse(event.data);
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const { lines = [], buffer = "" } = data;
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renderLinesWithBuffer(lines, buffer);
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};
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});
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}
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function renderLinesWithBuffer(lines, buffer) {
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if (!Array.isArray(lines) || lines.length === 0) {
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linesTranscriptDiv.innerHTML = "";
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return;
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}
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const linesHtml = lines.map((item, idx) => {
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let textContent = item.text;
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if (idx === lines.length - 1 && buffer) {
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textContent += `<span class="buffer">${buffer}</span>`;
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}
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return `<p><strong>Speaker ${item.speaker}:</strong> ${textContent}</p>`;
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}).join("");
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linesTranscriptDiv.innerHTML = linesHtml;
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}
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async function startRecording() {
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try {
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const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
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recorder = new MediaRecorder(stream, { mimeType: "audio/webm" });
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recorder.ondataavailable = (e) => {
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if (websocket && websocket.readyState === WebSocket.OPEN) {
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websocket.send(e.data);
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}
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};
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recorder.start(chunkDuration);
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isRecording = true;
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updateUI();
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} catch (err) {
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statusText.textContent = "Error accessing microphone. Please allow microphone access.";
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}
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}
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function stopRecording() {
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userClosing = true;
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if (recorder) {
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recorder.stop();
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recorder = null;
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}
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isRecording = false;
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if (websocket) {
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websocket.close();
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websocket = null;
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}
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updateUI();
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}
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async function toggleRecording() {
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if (!isRecording) {
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linesTranscriptDiv.innerHTML = "";
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try {
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await setupWebSocket();
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await startRecording();
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} catch (err) {
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statusText.textContent = "Could not connect to WebSocket or access mic. Aborted.";
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}
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} else {
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stopRecording();
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}
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}
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function updateUI() {
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recordButton.classList.toggle("recording", isRecording);
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statusText.textContent = isRecording ? "Recording..." : "Click to start transcription";
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}
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recordButton.addEventListener("click", toggleRecording);
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</script>
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</body>
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</html> |
