Spaces:
Running
Running
| <html lang="en-us"> | |
| <head> | |
| <title>whisper.cpp : WASM example</title> | |
| <style> | |
| #output { | |
| width: 100%; | |
| height: 100%; | |
| margin: 0 auto; | |
| margin-top: 10px; | |
| border-left: 0px; | |
| border-right: 0px; | |
| padding-left: 0px; | |
| padding-right: 0px; | |
| display: block; | |
| background-color: black; | |
| color: white; | |
| font-size: 10px; | |
| font-family: 'Lucida Console', Monaco, monospace; | |
| outline: none; | |
| white-space: pre; | |
| overflow-wrap: normal; | |
| overflow-x: scroll; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="main-container"> | |
| <b>Minimal <a href="https://github.com/ggerganov/whisper.cpp">whisper.cpp</a> example running fully in the browser</b> | |
| <br><br> | |
| Usage instructions:<br> | |
| <ul> | |
| <li>Load a ggml model file (you can obtain one from <a href="https://ggml.ggerganov.com/">here</a>, recommended: <b>tiny</b> or <b>base</b>)</li> | |
| <li>Select audio file to transcribe or record audio from the microphone (sample: <a href="https://whisper.ggerganov.com/jfk.wav">jfk.wav</a>)</li> | |
| <li>Click on the "Transcribe" button to start the transcription</li> | |
| </ul> | |
| Note that the computation is quite heavy and may take a few seconds to complete.<br> | |
| The transcription results will be displayed in the text area below.<br><br> | |
| <b>Important: your browser must support WASM SIMD instructions for this to work.</b> | |
| <br><br><hr> | |
| <div id="model"> | |
| Whisper model: <span id="model-whisper-status"></span> | |
| <button id="fetch-whisper-tiny-en" onclick="loadWhisper('tiny.en')">tiny.en (75 MB)</button> | |
| <button id="fetch-whisper-tiny" onclick="loadWhisper('tiny')">tiny (75 MB)</button> | |
| <button id="fetch-whisper-base-en" onclick="loadWhisper('base.en')">base.en (142 MB)</button> | |
| <button id="fetch-whisper-base" onclick="loadWhisper('base')">base (142 MB)</button> | |
| <span id="fetch-whisper-progress"></span> | |
| <input type="file" id="whisper-file" name="file" onchange="loadFile(event, 'whisper.bin')" /> | |
| </div> | |
| <br> | |
| <!-- radio button to select between file upload or microphone --> | |
| <div id="input"> | |
| Input: | |
| <input type="radio" id="file" name="input" value="file" checked="checked" onchange="changeInput('file')" /> File | |
| <input type="radio" id="mic" name="input" value="mic" onchange="changeInput('mic')" /> Microphone | |
| </div> | |
| <br> | |
| <div id="input_file"> | |
| Audio file: | |
| <input type="file" id="file" name="file" onchange="loadAudio(event)" /> | |
| </div> | |
| <div id="input_mic" style="display: none;"> | |
| Microphone: | |
| <button id="start" onclick="startRecording()">Start</button> | |
| <button id="stop" onclick="stopRecording()" disabled>Stop</button> | |
| <!-- progress bar to show recording progress --> | |
| <br><br> | |
| <div id="progress" style="display: none;"> | |
| <div id="progress-bar" style="width: 0%; height: 10px; background-color: #4CAF50;"></div> | |
| <div id="progress-text">0%</div> | |
| </div> | |
| </div> | |
| <audio controls="controls" id="audio" loop hidden> | |
| Your browser does not support the <audio> tag. | |
| <source id="source" src="" type="audio/wav" /> | |
| </audio> | |
| <hr><br> | |
| <table> | |
| <tr> | |
| <td> | |
| Language: | |
| <select id="language" name="language"> | |
| <option value="en">English</option> | |
| <option value="ar">Arabic</option> | |
| <option value="hy">Armenian</option> | |
| <option value="az">Azerbaijani</option> | |
| <option value="eu">Basque</option> | |
| <option value="be">Belarusian</option> | |
| <option value="bn">Bengali</option> | |
| <option value="bg">Bulgarian</option> | |
| <option value="ca">Catalan</option> | |
| <option value="zh">Chinese</option> | |
| <option value="hr">Croatian</option> | |
| <option value="cs">Czech</option> | |
| <option value="da">Danish</option> | |
| <option value="nl">Dutch</option> | |
| <option value="en">English</option> | |
| <option value="et">Estonian</option> | |
| <option value="tl">Filipino</option> | |
| <option value="fi">Finnish</option> | |
| <option value="fr">French</option> | |
| <option value="gl">Galician</option> | |
| <option value="ka">Georgian</option> | |
| <option value="de">German</option> | |
| <option value="el">Greek</option> | |
| <option value="gu">Gujarati</option> | |
| <option value="iw">Hebrew</option> | |
| <option value="hi">Hindi</option> | |
| <option value="hu">Hungarian</option> | |
| <option value="is">Icelandic</option> | |
| <option value="id">Indonesian</option> | |
| <option value="ga">Irish</option> | |
| <option value="it">Italian</option> | |
| <option value="ja">Japanese</option> | |
| <option value="kn">Kannada</option> | |
| <option value="ko">Korean</option> | |
| <option value="la">Latin</option> | |
| <option value="lv">Latvian</option> | |
| <option value="lt">Lithuanian</option> | |
| <option value="mk">Macedonian</option> | |
| <option value="ms">Malay</option> | |
| <option value="mt">Maltese</option> | |
| <option value="no">Norwegian</option> | |
| <option value="fa">Persian</option> | |
| <option value="pl">Polish</option> | |
| <option value="pt">Portuguese</option> | |
| <option value="ro">Romanian</option> | |
| <option value="ru">Russian</option> | |
| <option value="sr">Serbian</option> | |
| <option value="sk">Slovak</option> | |
| <option value="sl">Slovenian</option> | |
| <option value="es">Spanish</option> | |
| <option value="sw">Swahili</option> | |
| <option value="sv">Swedish</option> | |
| <option value="ta">Tamil</option> | |
| <option value="te">Telugu</option> | |
| <option value="th">Thai</option> | |
| <option value="tr">Turkish</option> | |
| <option value="uk">Ukrainian</option> | |
| <option value="ur">Urdu</option> | |
| <option value="vi">Vietnamese</option> | |
| <option value="cy">Welsh</option> | |
| <option value="yi">Yiddish</option> | |
| </select> | |
| </td> | |
| <td> | |
| <button onclick="onProcess(false);">Transcribe</button> | |
| </td> | |
| <td> | |
| <button onclick="onProcess(true);">Translate</button> | |
| </td> | |
| </tr> | |
| </table> | |
| <br> | |
| <!-- textarea with height filling the rest of the page --> | |
| <textarea id="output" rows="20"></textarea> | |
| <br><br> | |
| <div class="cell-version"> | |
| <span> | |
| | | |
| Build time: <span class="nav-link">@GIT_DATE@</span> | | |
| Commit hash: <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/commit/@GIT_SHA1@">@GIT_SHA1@</a> | | |
| Commit subject: <span class="nav-link">@GIT_COMMIT_SUBJECT@</span> | | |
| <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/whisper.wasm">Source Code</a> | | |
| </span> | |
| </div> | |
| </div> | |
| <script type="text/javascript" src="helpers.js"></script> | |
| <script type='text/javascript'> | |
| // TODO: convert audio buffer to WAV | |
| function setAudio(audio) { | |
| //if (audio) { | |
| // // convert to 16-bit PCM | |
| // var blob = new Blob([audio], { type: 'audio/wav' }); | |
| // var url = URL.createObjectURL(blob); | |
| // document.getElementById('source').src = url; | |
| // document.getElementById('audio').hidden = false; | |
| // document.getElementById('audio').loop = false; | |
| // document.getElementById('audio').load(); | |
| //} else { | |
| // document.getElementById('audio').hidden = true; | |
| //} | |
| } | |
| function changeInput(input) { | |
| if (input == 'file') { | |
| document.getElementById('input_file').style.display = 'block'; | |
| document.getElementById('input_mic' ).style.display = 'none'; | |
| document.getElementById('progress' ).style.display = 'none'; | |
| } else { | |
| document.getElementById('input_file').style.display = 'none'; | |
| document.getElementById('input_mic' ).style.display = 'block'; | |
| document.getElementById('progress' ).style.display = 'block'; | |
| } | |
| } | |
| var Module = { | |
| print: printTextarea, | |
| printErr: printTextarea, | |
| setStatus: function(text) { | |
| printTextarea('js: ' + text); | |
| }, | |
| monitorRunDependencies: function(left) { | |
| } | |
| }; | |
| // web audio context | |
| var context = null; | |
| // audio data | |
| var audio = null; | |
| // the whisper instance | |
| var instance = null; | |
| var model_whisper = ''; | |
| // helper function | |
| function convertTypedArray(src, type) { | |
| var buffer = new ArrayBuffer(src.byteLength); | |
| var baseView = new src.constructor(buffer).set(src); | |
| return new type(buffer); | |
| } | |
| // | |
| // load model | |
| // | |
| let dbVersion = 1 | |
| let dbName = 'whisper.ggerganov.com'; | |
| let indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB | |
| function storeFS(fname, buf) { | |
| // write to WASM file using FS_createDataFile | |
| // if the file exists, delete it | |
| try { | |
| Module.FS_unlink(fname); | |
| } catch (e) { | |
| // ignore | |
| } | |
| Module.FS_createDataFile("/", fname, buf, true, true); | |
| model_whisper = fname; | |
| document.getElementById('model-whisper-status').innerHTML = 'loaded "' + model_whisper + '"!'; | |
| printTextarea('storeFS: stored model: ' + fname + ' size: ' + buf.length); | |
| } | |
| function loadFile(event, fname) { | |
| var file = event.target.files[0] || null; | |
| if (file == null) { | |
| return; | |
| } | |
| printTextarea("loadFile: loading model: " + file.name + ", size: " + file.size + " bytes"); | |
| printTextarea('loadFile: please wait ...'); | |
| var reader = new FileReader(); | |
| reader.onload = function(event) { | |
| var buf = new Uint8Array(reader.result); | |
| storeFS(fname, buf); | |
| } | |
| reader.readAsArrayBuffer(file); | |
| document.getElementById('fetch-whisper-tiny-en').style.display = 'none'; | |
| document.getElementById('fetch-whisper-base-en').style.display = 'none'; | |
| document.getElementById('fetch-whisper-tiny' ).style.display = 'none'; | |
| document.getElementById('fetch-whisper-base' ).style.display = 'none'; | |
| document.getElementById('whisper-file' ).style.display = 'none'; | |
| document.getElementById('model-whisper-status' ).innerHTML = 'loaded model: ' + file.name; | |
| } | |
| function loadWhisper(model) { | |
| let urls = { | |
| 'tiny.en': 'ggml-tiny.en.bin', | |
| 'tiny': 'https://huggingface.co/datasets/ggerganov/whisper.cpp/resolve/main/ggml-whisper-tiny.bin', | |
| 'base.en': 'https://huggingface.co/datasets/ggerganov/whisper.cpp/resolve/main/ggml-whisper-base.en.bin', | |
| 'base': 'https://huggingface.co/datasets/ggerganov/whisper.cpp/resolve/main/ggml-whisper-base.bin', | |
| }; | |
| let sizes = { | |
| 'tiny.en': 75, | |
| 'tiny': 75, | |
| 'base.en': 142, | |
| 'base': 142, | |
| }; | |
| let url = urls[model]; | |
| let dst = 'whisper.bin'; | |
| let size_mb = sizes[model]; | |
| model_whisper = model; | |
| document.getElementById('fetch-whisper-tiny-en').style.display = 'none'; | |
| document.getElementById('fetch-whisper-base-en').style.display = 'none'; | |
| document.getElementById('fetch-whisper-tiny' ).style.display = 'none'; | |
| document.getElementById('fetch-whisper-base' ).style.display = 'none'; | |
| document.getElementById('whisper-file' ).style.display = 'none'; | |
| document.getElementById('model-whisper-status' ).innerHTML = 'loading model: ' + model; | |
| cbProgress = function(p) { | |
| let el = document.getElementById('fetch-whisper-progress'); | |
| el.innerHTML = Math.round(100*p) + '%'; | |
| }; | |
| cbCancel = function() { | |
| var el; | |
| el = document.getElementById('fetch-whisper-tiny-en'); if (el) el.style.display = 'inline-block'; | |
| el = document.getElementById('fetch-whisper-base-en'); if (el) el.style.display = 'inline-block'; | |
| el = document.getElementById('fetch-whisper-tiny' ); if (el) el.style.display = 'inline-block'; | |
| el = document.getElementById('fetch-whisper-base' ); if (el) el.style.display = 'inline-block'; | |
| el = document.getElementById('whisper-file' ); if (el) el.style.display = 'inline-block'; | |
| el = document.getElementById('model-whisper-status' ); if (el) el.innerHTML = ''; | |
| }; | |
| loadRemote(url, dst, size_mb, cbProgress, storeFS, cbCancel, printTextarea); | |
| } | |
| // | |
| // audio file | |
| // | |
| const kMaxAudio_s = 120; | |
| const kSampleRate = 16000; | |
| window.AudioContext = window.AudioContext || window.webkitAudioContext; | |
| window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext; | |
| function loadAudio(event) { | |
| if (!context) { | |
| context = new AudioContext({ | |
| sampleRate: kSampleRate, | |
| channelCount: 1, | |
| echoCancellation: false, | |
| autoGainControl: true, | |
| noiseSuppression: true, | |
| }); | |
| } | |
| var file = event.target.files[0] || null; | |
| if (file == null) { | |
| return; | |
| } | |
| printTextarea('js: loading audio: ' + file.name + ', size: ' + file.size + ' bytes'); | |
| printTextarea('js: please wait ...'); | |
| var reader = new FileReader(); | |
| reader.onload = function(event) { | |
| var buf = new Uint8Array(reader.result); | |
| context.decodeAudioData(buf.buffer, function(audioBuffer) { | |
| var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate); | |
| var source = offlineContext.createBufferSource(); | |
| source.buffer = audioBuffer; | |
| source.connect(offlineContext.destination); | |
| source.start(0); | |
| offlineContext.startRendering().then(function(renderedBuffer) { | |
| audio = renderedBuffer.getChannelData(0); | |
| printTextarea('js: audio loaded, size: ' + audio.length); | |
| // truncate to first 30 seconds | |
| if (audio.length > kMaxAudio_s*kSampleRate) { | |
| audio = audio.slice(0, kMaxAudio_s*kSampleRate); | |
| printTextarea('js: truncated audio to first ' + kMaxAudio_s + ' seconds'); | |
| } | |
| setAudio(audio); | |
| }); | |
| }, function(e) { | |
| printTextarea('js: error decoding audio: ' + e); | |
| audio = null; | |
| setAudio(audio); | |
| }); | |
| } | |
| reader.readAsArrayBuffer(file); | |
| } | |
| // | |
| // microphone | |
| // | |
| var mediaRecorder = null; | |
| var doRecording = false; | |
| var startTime = 0; | |
| function stopRecording() { | |
| doRecording = false; | |
| } | |
| // record up to kMaxAudio_s seconds of audio from the microphone | |
| // check if doRecording is false every 1000 ms and stop recording if so | |
| // update progress information | |
| function startRecording() { | |
| if (!context) { | |
| context = new AudioContext({ | |
| sampleRate: kSampleRate, | |
| channelCount: 1, | |
| echoCancellation: false, | |
| autoGainControl: true, | |
| noiseSuppression: true, | |
| }); | |
| } | |
| document.getElementById('start').disabled = true; | |
| document.getElementById('stop').disabled = false; | |
| document.getElementById('progress-bar').style.width = '0%'; | |
| document.getElementById('progress-text').innerHTML = '0%'; | |
| doRecording = true; | |
| startTime = Date.now(); | |
| var chunks = []; | |
| var stream = null; | |
| navigator.mediaDevices.getUserMedia({audio: true, video: false}) | |
| .then(function(s) { | |
| stream = s; | |
| mediaRecorder = new MediaRecorder(stream); | |
| mediaRecorder.ondataavailable = function(e) { | |
| chunks.push(e.data); | |
| }; | |
| mediaRecorder.onstop = function(e) { | |
| var blob = new Blob(chunks, { 'type' : 'audio/ogg; codecs=opus' }); | |
| chunks = []; | |
| document.getElementById('start').disabled = false; | |
| document.getElementById('stop').disabled = true; | |
| var reader = new FileReader(); | |
| reader.onload = function(event) { | |
| var buf = new Uint8Array(reader.result); | |
| context.decodeAudioData(buf.buffer, function(audioBuffer) { | |
| var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate); | |
| var source = offlineContext.createBufferSource(); | |
| source.buffer = audioBuffer; | |
| source.connect(offlineContext.destination); | |
| source.start(0); | |
| offlineContext.startRendering().then(function(renderedBuffer) { | |
| audio = renderedBuffer.getChannelData(0); | |
| printTextarea('js: audio recorded, size: ' + audio.length); | |
| // truncate to first 30 seconds | |
| if (audio.length > kMaxAudio_s*kSampleRate) { | |
| audio = audio.slice(0, kMaxAudio_s*kSampleRate); | |
| printTextarea('js: truncated audio to first ' + kMaxAudio_s + ' seconds'); | |
| } | |
| setAudio(audio); | |
| }); | |
| }, function(e) { | |
| printTextarea('js: error decoding audio: ' + e); | |
| audio = null; | |
| setAudio(audio); | |
| }); | |
| } | |
| reader.readAsArrayBuffer(blob); | |
| }; | |
| mediaRecorder.start(); | |
| }) | |
| .catch(function(err) { | |
| printTextarea('js: error getting audio stream: ' + err); | |
| }); | |
| var interval = setInterval(function() { | |
| if (!doRecording) { | |
| clearInterval(interval); | |
| mediaRecorder.stop(); | |
| stream.getTracks().forEach(function(track) { | |
| track.stop(); | |
| }); | |
| } | |
| document.getElementById('progress-bar').style.width = (100*(Date.now() - startTime)/1000/kMaxAudio_s) + '%'; | |
| document.getElementById('progress-text').innerHTML = (100*(Date.now() - startTime)/1000/kMaxAudio_s).toFixed(0) + '%'; | |
| }, 1000); | |
| printTextarea('js: recording ...'); | |
| setTimeout(function() { | |
| if (doRecording) { | |
| printTextarea('js: recording stopped after ' + kMaxAudio_s + ' seconds'); | |
| stopRecording(); | |
| } | |
| }, kMaxAudio_s*1000); | |
| } | |
| // | |
| // transcribe | |
| // | |
| function onProcess(translate) { | |
| if (!instance) { | |
| instance = Module.init('whisper.bin'); | |
| if (instance) { | |
| printTextarea("js: whisper initialized, instance: " + instance); | |
| document.getElementById('model').innerHTML = 'Model loaded: ' + model_whisper; | |
| } | |
| } | |
| if (!instance) { | |
| printTextarea("js: failed to initialize whisper"); | |
| return; | |
| } | |
| if (!audio) { | |
| printTextarea("js: no audio data"); | |
| return; | |
| } | |
| if (instance) { | |
| printTextarea(''); | |
| printTextarea('js: processing - this might take a while ...'); | |
| printTextarea(''); | |
| setTimeout(function() { | |
| var ret = Module.full_default(instance, audio, document.getElementById('language').value, translate); | |
| console.log('js: full_default returned: ' + ret); | |
| if (ret) { | |
| printTextarea("js: whisper returned: " + ret); | |
| } | |
| }, 100); | |
| } | |
| } | |
| </script> | |
| <script type="text/javascript" src="main.js"></script> | |
| </body> | |
| </html> | |