AI-UI-UX-JS/AI_Speech_Recognition_Voice_GPT.html at main · AaronCWacker/AI-UI-UX-JS · GitHub

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>Minimal ASR Web App (Continuous, Pauses → Blocks)</title>
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <style>
    :root {
      --bg:#0f1115; --fg:#e6e9ef; --muted:#98a2b3; --panel:#151821; --accent:#7c9aff; --ok:#2ecc71; --warn:#ffb020;
      --radius:14px;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0; padding: 24px; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
      background: linear-gradient(180deg, #0b0d12, #11141c 30%, #0f1115 100%); color: var(--fg);
    }
    h1 { margin: 0 0 8px; font-size: 20px; font-weight: 700; }
    .sub { color: var(--muted); margin-bottom: 18px; font-size: 13px; }
    .row { display: flex; gap: 12px; flex-wrap: wrap; }
    button, .btn {
      border: 0; background: var(--panel); color: var(--fg); padding: 10px 14px; border-radius: 10px; cursor: pointer;
      font-weight: 600; transition: transform .02s ease, background .15s ease; user-select: none;
    }
    button:hover { background:#1b2130; }
    button:active { transform: translateY(1px); }
    button[disabled] { opacity:.5; cursor:not-allowed; }
    .primary { background: var(--accent); color:#0c1020; }
    .danger { background:#2b1a1a; color:#ffd1d1; }
    .ok { background:#14271c; color:#b6ffd2; }
    .chip {
      display:inline-flex; align-items:center; gap:6px; padding:6px 10px; border-radius:999px; background:#1b2130; color:#c9d2e3; font-size:12px;
    }
    .panel {
      background: var(--panel); border: 1px solid #1f2532; border-radius: var(--radius); padding: 14px;
    }
    .status { margin-top: 12px; }
    .status .dot { width:10px; height:10px; border-radius:50%; display:inline-block; vertical-align:middle; margin-right:8px; }
    .dot.ok { background: var(--ok); }
    .dot.warn { background: var(--warn); }
    .dot.muted { background: #667085; }
    .blocks { display: grid; gap: 10px; margin-top: 12px; }
    .block {
      background: #0f1320; border:1px solid #1f2740; border-radius: 12px; padding: 12px;
      display: grid; gap: 8px;
    }
    .block[contenteditable="true"] { outline: none; }
    .block-header { display:flex; justify-content: space-between; align-items:center; gap: 8px; }
    .block-time { color: var(--muted); font-size:12px; }
    .live {
      white-space: pre-wrap; color:#cbd5e1; min-height: 32px; padding: 8px 10px; border-radius: 10px;
      background:#0e1220; border:1px dashed #283252;
    }
    textarea#aggregate {
      width: 100%; min-height: 140px; resize: vertical; background:#0e1220; color:#dbe1f1; padding:12px;
      border-radius: 12px; border:1px solid #283252; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    .kv { display:flex; align-items:center; gap: 12px; flex-wrap: wrap; }
    label.slider { display:flex; align-items:center; gap:8px; color: var(--muted); font-size: 12px; }
    input[type="range"]{ accent-color: var(--accent);}
    .footer { margin-top: 22px; color: var(--muted); font-size: 12px; text-align: center;}
    .sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip: rect(0,0,0,0); border:0;}
  </style>
</head>
<body>
  <h1>🎙️ Minimal ASR Web App</h1>
  <div class="sub">Continuous speech → editable blocks on long pauses. Save/copy your transcript. (Chrome recommended)</div>

  <div class="panel">
    <div class="row">
      <button id="btnStart" class="primary">Record Start</button>
      <button id="btnStop"  class="">Record Stop</button>
      <button id="btnClear" class="danger">Clear</button>
      <button id="btnSaveTxt" class="ok">Save .txt</button>
      <button id="btnSaveMd"  class="ok">Save .md</button>
      <button id="btnCopyAll" class="">Copy All</button>
      <span class="chip" title="Split on long pause">
        ⏱️ Pause Split:
        <strong><span id="pauseSecLabel">3.0s</span></strong>
      </span>
    </div>
    <div class="kv" style="margin-top:10px;">
      <label class="slider">Threshold
        <input id="pauseSec" type="range" min="1" max="8" step="0.5" value="3" />
      </label>
      <label class="slider">Language
        <select id="lang">
          <option value="en-US" selected>en-US</option>
          <option value="en-GB">en-GB</option>
          <option value="en-AU">en-AU</option>
          <option value="es-ES">es-ES</option>
          <option value="fr-FR">fr-FR</option>
          <option value="de-DE">de-DE</option>
          <option value="it-IT">it-IT</option>
          <option value="ja-JP">ja-JP</option>
          <option value="zh-CN">zh-CN</option>
        </select>
      </label>
      <span id="status" class="chip"><span class="dot muted"></span><span id="statusText">Idle</span></span>
    </div>
  </div>

  <div class="panel" style="margin-top:14px;">
    <div style="font-weight:600; margin-bottom:6px;">Live (interim)</div>
    <div id="live" class="live" aria-live="polite"></div>
  </div>

  <div class="panel" style="margin-top:14px;">
    <div style="display:flex; justify-content:space-between; align-items:center;">
      <div style="font-weight:600">Blocks (split on pause)</div>
      <button id="btnNewBlock" class="">Insert Manual Split</button>
    </div>
    <div id="blocks" class="blocks"></div>
  </div>

  <div class="panel" style="margin-top:14px;">
    <div style="display:flex; justify-content:space-between; align-items:center;">
      <div style="font-weight:600">Aggregated Transcript</div>
      <button id="btnCopyAgg" class="">Copy Aggregated</button>
    </div>
    <textarea id="aggregate" placeholder="All recognized text will aggregate here…"></textarea>
  </div>

  <p class="footer">Tip: Each block is editable (click into a block to fix words). Use “Manual Split” to segment on demand.</p>

  <script>
    // --- Capability check ---
    const SR = window.SpeechRecognition || window.webkitSpeechRecognition;
    if (!SR) {
      alert('Your browser does not support Web Speech API (webkitSpeechRecognition). Try Chrome.');
    }

    // --- Elements ---
    const btnStart     = document.getElementById('btnStart');
    const btnStop      = document.getElementById('btnStop');
    const btnClear     = document.getElementById('btnClear');
    const btnSaveTxt   = document.getElementById('btnSaveTxt');
    const btnSaveMd    = document.getElementById('btnSaveMd');
    const btnCopyAll   = document.getElementById('btnCopyAll');
    const btnCopyAgg   = document.getElementById('btnCopyAgg');
    const btnNewBlock  = document.getElementById('btnNewBlock');

    const liveEl       = document.getElementById('live');
    const blocksEl     = document.getElementById('blocks');
    const aggregateEl  = document.getElementById('aggregate');
    const statusChip   = document.getElementById('status');
    const statusText   = document.getElementById('statusText');
    const pauseInput   = document.getElementById('pauseSec');
    const pauseLabel   = document.getElementById('pauseSecLabel');
    const langSelect   = document.getElementById('lang');

    // --- State ---
    let recognition = null;
    let listening   = false;
    let interimText = '';
    let lastFinalAt = 0;
    let pauseMs     = parseFloat(pauseInput.value) * 1000;

    // Maintain a "current block" reference to append final chunks until a pause triggers split.
    let currentBlock = null;

    // --- Helpers ---
    const fmtTime = (d=new Date()) =>
      d.toLocaleString(undefined, { hour12:false, year:'2-digit', month:'2-digit', day:'2-digit', hour:'2-digit', minute:'2-digit', second:'2-digit' });

    function setStatus(kind, text) {
      // kind: 'idle' | 'listening' | 'warn'
      statusText.textContent = text;
      const dot = statusChip.querySelector('.dot');
      dot.className = 'dot ' + (kind === 'listening' ? 'ok' : kind === 'warn' ? 'warn' : 'muted');
    }

    function makeBlock(initialText='') {
      const wrapper = document.createElement('div');
      wrapper.className = 'block';
      wrapper.contentEditable = 'true';
      wrapper.spellcheck = true;

      const header = document.createElement('div');
      header.className = 'block-header';

      const time = document.createElement('div');
      time.className = 'block-time';
      time.textContent = `⏺️ ${fmtTime()} `;

      const actions = document.createElement('div');
      const btnCopy = document.createElement('button');
      btnCopy.textContent = 'Copy';
      btnCopy.className = 'btn';
      btnCopy.addEventListener('click', () => copyToClipboard(wrapper.innerText.trim()));

      const btnDel = document.createElement('button');
      btnDel.textContent = 'Delete';
      btnDel.className = 'btn danger';
      btnDel.addEventListener('click', () => { wrapper.remove(); syncAggregate(); });

      actions.append(btnCopy, btnDel);
      header.append(time, actions);

      const body = document.createElement('div');
      body.className = 'block-body';
      body.style.whiteSpace = 'pre-wrap';
      body.textContent = initialText;

      wrapper.append(header, body);
      // Editing support: keep header static, body is the text container
      wrapper.addEventListener('input', syncAggregate);
      blocksEl.appendChild(wrapper);
      return wrapper;
    }

    function ensureCurrentBlock() {
      if (!currentBlock) {
        currentBlock = makeBlock('');
      }
      return currentBlock;
    }

    function appendFinalToCurrent(text) {
      const blk = ensureCurrentBlock();
      const body = blk.querySelector('.block-body');
      body.textContent = (body.textContent ? body.textContent + ' ' : '') + text.trim();
    }

    function splitForPause() {
      // Close current block and start a new one
      currentBlock = null;
    }

    function syncAggregate() {
      const contents = [...blocksEl.querySelectorAll('.block .block-body')]
        .map(n => n.innerText.trim())
        .filter(s => s.length);
      aggregateEl.value = contents.join('\n\n');
    }

    async function copyToClipboard(text) {
      try {
        await navigator.clipboard.writeText(text);
      } catch {
        // Fallback for older browsers
        const ta = document.createElement('textarea');
        ta.value = text;
        document.body.appendChild(ta);
        ta.select();
        document.execCommand('copy');
        document.body.removeChild(ta);
      }
    }

    function download(name, text, mime='text/plain') {
      const blob = new Blob([text], { type: mime });
      const a = document.createElement('a');
      a.href = URL.createObjectURL(blob);
      a.download = name;
      document.body.appendChild(a);
      a.click();
      setTimeout(() => {
        URL.revokeObjectURL(a.href);
        document.body.removeChild(a);
      }, 0);
    }

    function renderInterim(text) {
      liveEl.textContent = text || '';
    }

    // --- Speech setup ---
    function createRecognizer() {
      const r = new SR();
      r.continuous = true;
      r.interimResults = true;
      r.lang = langSelect.value;
      return r;
    }

    function bindRecognition(r) {
      r.onstart = () => setStatus('listening', 'Listening…');
      r.onend = () => {
        setStatus('idle', listening ? 'Restarting…' : 'Stopped');
        if (listening) {
          // Defensive restart loop
          setTimeout(() => {
            try { r.start(); } catch(_) {}
          }, 200);
        }
      };
      r.onerror = (e) => {
        console.warn('Recognition error:', e.error);
        setStatus('warn', `Error: ${e.error}`);
        // Some errors require manual restart
        if (e.error === 'not-allowed' || e.error === 'service-not-allowed') {
          listening = false; btnStart.disabled = false; btnStop.disabled = true;
        }
      };
      r.onresult = (evt) => {
        let localInterim = '';
        let anyFinal = false;

        for (let i = evt.resultIndex; i < evt.results.length; i++) {
          const res = evt.results[i];
          const chunk = res[0]?.transcript ?? '';
          if (res.isFinal) {
            anyFinal = true;
            // Append to current block
            appendFinalToCurrent(chunk);
          } else {
            localInterim += chunk;
          }
        }

        if (anyFinal) {
          lastFinalAt = Date.now();
          syncAggregate(); // reflect in textarea
        }

        interimText = localInterim;
        renderInterim(interimText);
      };
    }

    function startListening() {
      if (!SR) return;
      if (listening) return;
      listening = true;

      if (!recognition) {
        recognition = createRecognizer();
        bindRecognition(recognition);
      } else {
        // update language if changed before restart
        recognition.lang = langSelect.value;
      }

      try {
        recognition.start();
        btnStart.disabled = true;
        btnStop.disabled = false;
        setStatus('listening', 'Listening…');
        lastFinalAt = Date.now();
      } catch (e) {
        setStatus('warn', 'Start error: ' + e.message);
      }
    }

    function stopListening() {
      if (!recognition || !listening) { setStatus('idle', 'Stopped'); return; }
      listening = false;
      try { recognition.stop(); } catch (_) {}
      btnStart.disabled = false;
      btnStop.disabled = true;
      setStatus('idle', 'Stopped');
    }

    // --- Pause detector (splits blocks on long pauses with no interim) ---
    setInterval(() => {
      if (!listening) return;
      const elapsed = Date.now() - lastFinalAt;
      // If we haven't received any final in a while and there's no interim being spoken,
      // split to a new block so next final goes into a fresh, user-editable section.
      if (elapsed > pauseMs && interimText.trim().length === 0) {
        splitForPause();
        // Nudge lastFinalAt so we don't split repeatedly
        lastFinalAt = Date.now();
      }
    }, 300);

    // --- Wire UI ---
    btnStart.addEventListener('click', startListening);
    btnStop.addEventListener('click',  stopListening);
    btnClear.addEventListener('click', () => {
      stopListening();
      blocksEl.innerHTML = '';
      liveEl.textContent = '';
      aggregateEl.value  = '';
      currentBlock = null;
      interimText = '';
      setStatus('idle', 'Cleared');
    });
    btnSaveTxt.addEventListener('click', () => {
      const stamp = new Date().toISOString().replace(/[:.]/g,'-');
      download(`asr-${stamp}.txt`, aggregateEl.value, 'text/plain;charset=utf-8');
    });
    btnSaveMd.addEventListener('click', () => {
      const stamp = new Date().toISOString().replace(/[:.]/g,'-');
      const md = '## Transcript\n\n' + aggregateEl.value.split('\n\n').map((b,i)=>`**Block ${i+1}**\n\n${b}`).join('\n\n');
      download(`asr-${stamp}.md`, md, 'text/markdown;charset=utf-8');
    });
    btnCopyAll.addEventListener('click', () => copyToClipboard(aggregateEl.value));
    btnCopyAgg.addEventListener('click', () => copyToClipboard(aggregateEl.value));
    btnNewBlock.addEventListener('click', () => { splitForPause(); ensureCurrentBlock(); });

    pauseInput.addEventListener('input', () => {
      pauseMs = parseFloat(pauseInput.value) * 1000;
      pauseLabel.textContent = `${parseFloat(pauseInput.value).toFixed(1)}s`;
    });
    langSelect.addEventListener('change', () => {
      if (listening) {
        // Apply new language immediately (restart needed in some browsers, but Chrome updates live)
        recognition.lang = langSelect.value;
      }
    });

    // Auto-create first block so early finals have a target
    ensureCurrentBlock();

    // Optional: auto-start after a short delay (comment out if undesired)
    // setTimeout(startListening, 800);

    // Keep textarea in sync if user edits blocks manually
    blocksEl.addEventListener('input', syncAggregate);
  </script>
</body>
</html>