<!doctype html> <html lang="en-us"> <head> <title>whisper.cpp : WASM example</title> <script src="https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/4.3.1/iframeResizer.contentWindow.min.js"></script> <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"> <div id="warning" style="display: none; padding: 1rem"> <b style="color: red; font-size: large" >Warning: your browser does not support SharedArrayBuffer please try open the page in a new tab. </b> <!-- <a target="_blank" href="https://radames-whisper-wasm.hf.space" target="_blank" >https://radames-whisper-wasm.hf.space</a > --> </div> <b >Minimal <a target="_blank" 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 target="_blank" 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 target="_blank" 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:</b> <ul> <li> your browser must support WASM SIMD instructions for this to work </li> <li> Firefox cannot load files larger than 256 MB - use Chrome instead </li> </ul> <b>More examples:</b> <a target="_blank" href="https://whisper.ggerganov.com/">main</a> | <a target="_blank" href="https://whisper.ggerganov.com/bench">bench</a> | <a target="_blank" href="https://whisper.ggerganov.com/stream">stream</a> | <a target="_blank" href="https://whisper.ggerganov.com/command">command</a> | <a target="_blank" href="https://whisper.ggerganov.com/talk">talk</a> | <hr /> <div id="model"> Whisper models: <span id="model-whisper-status"></span><br /><br /> <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> <button id="fetch-whisper-small-en" onclick="loadWhisper('small.en')"> small.en (466 MB) </button> <button id="fetch-whisper-small" onclick="loadWhisper('small')"> small (466 MB) </button> <input type="file" id="whisper-file" name="file" onchange="loadFile(event, 'whisper.bin')" /> <br /><br /> Quantized models:<br /><br /> <button id="fetch-whisper-tiny-en-q5_1" onclick="loadWhisper('tiny-en-q5_1')" > tiny.en (Q5_1, 31 MB) </button> <button id="fetch-whisper-tiny-q5_1" onclick="loadWhisper('tiny-q5_1')"> tiny (Q5_1, 31 MB) </button> <button id="fetch-whisper-base-en-q5_1" onclick="loadWhisper('base-en-q5_1')" > base.en (Q5_1, 57 MB) </button> <button id="fetch-whisper-base-q5_1" onclick="loadWhisper('base-q5_1')"> base (Q5_1, 57 MB) </button> <button id="fetch-whisper-small-en-q5_1" onclick="loadWhisper('small-en-q5_1')" > small.en (Q5_1, 182 MB) </button> <button id="fetch-whisper-small-q5_1" onclick="loadWhisper('small-q5_1')" > small (Q5_1, 182 MB)</button ><br /> <button id="fetch-whisper-medium-en-q5_0" onclick="loadWhisper('medium-en-q5_0')" > medium.en (Q5_0, 515 MB) </button> <button id="fetch-whisper-medium-q5_0" onclick="loadWhisper('medium-q5_0')" > medium (Q5_0, 515 MB) </button> <button id="fetch-whisper-large-q5_0" onclick="loadWhisper('large-q5_0')" > large (Q5_0, 1030 MB) </button> <span id="fetch-whisper-progress"></span> </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')" /> <label for="file">File</label> <input type="radio" id="mic" name="input" value="mic" onchange="changeInput('mic')" /> <label for="mic">Microphone</label> </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> <a target="_blank"udio 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> <!-- Slider to select number of threads between 1 and 16 --> <td> Threads: <input type="range" id="threads" name="threads" min="1" max="16" value="8" onchange="changeThreads(this.value)" /> <span id="threads-value">8</span> </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 target="_blank" 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 target="_blank" 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"> document.addEventListener("DOMContentLoaded", () => { //check is shared array buffer is supported if (!window.SharedArrayBuffer) { document.querySelector("#warning").style.display = "block"; } }); // 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 ); document.getElementById("model").innerHTML = "Model fetched: " + model_whisper; } 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-small-en").style.display = "none"; document.getElementById("fetch-whisper-tiny").style.display = "none"; document.getElementById("fetch-whisper-base").style.display = "none"; document.getElementById("fetch-whisper-small").style.display = "none"; document.getElementById("fetch-whisper-tiny-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-tiny-q5_1").style.display = "none"; document.getElementById("fetch-whisper-base-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-base-q5_1").style.display = "none"; document.getElementById("fetch-whisper-small-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-small-q5_1").style.display = "none"; document.getElementById("fetch-whisper-medium-en-q5_0").style.display = "none"; document.getElementById("fetch-whisper-medium-q5_0").style.display = "none"; document.getElementById("fetch-whisper-large-q5_0").style.display = "none"; document.getElementById("whisper-file").style.display = "none"; document.getElementById("model-whisper-status").innerHTML = "loaded model: " + file.name; } function loadWhisper(model) { const baseURL = "https://huggingface.co/ggerganov/whisper.cpp/resolve/main"; let urls = { "tiny.en": `${baseURL}/ggml-tiny.en.bin`, tiny: `${baseURL}/ggml-tiny.bin`, "base.en": `${baseURL}/ggml-base.en.bin`, base: `${baseURL}/ggml-base.bin`, "small.en": `${baseURL}/ggml-small.en.bin`, small: `${baseURL}/ggml-small.bin`, "tiny-en-q5_1": `${baseURL}/ggml-model-whisper-tiny.en-q5_1.bin`, "tiny-q5_1": `${baseURL}/ggml-model-whisper-tiny-q5_1.bin`, "base-en-q5_1": `${baseURL}/ggml-model-whisper-base.en-q5_1.bin`, "base-q5_1": `${baseURL}/ggml-model-whisper-base-q5_1.bin`, "small-en-q5_1": `${baseURL}/ggml-model-whisper-small.en-q5_1.bin`, "small-q5_1": `${baseURL}/ggml-model-whisper-small-q5_1.bin`, "medium-en-q5_0": `${baseURL}/ggml-model-whisper-medium.en-q5_0.bin`, "medium-q5_0": `${baseURL}/ggml-model-whisper-medium-q5_0.bin`, "large-q5_0": `${baseURL}/ggml-model-whisper-large-q5_0.bin`, }; let sizes = { "tiny.en": 75, tiny: 75, "base.en": 142, base: 142, "small.en": 466, small: 466, "tiny-en-q5_1": 31, "tiny-q5_1": 31, "base-en-q5_1": 57, "base-q5_1": 57, "small-en-q5_1": 182, "small-q5_1": 182, "medium-en-q5_0": 515, "medium-q5_0": 515, "large-q5_0": 1030, }; 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-small-en").style.display = "none"; document.getElementById("fetch-whisper-tiny").style.display = "none"; document.getElementById("fetch-whisper-base").style.display = "none"; document.getElementById("fetch-whisper-small").style.display = "none"; document.getElementById("fetch-whisper-tiny-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-tiny-q5_1").style.display = "none"; document.getElementById("fetch-whisper-base-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-base-q5_1").style.display = "none"; document.getElementById("fetch-whisper-small-en-q5_1").style.display = "none"; document.getElementById("fetch-whisper-small-q5_1").style.display = "none"; document.getElementById("fetch-whisper-medium-en-q5_0").style.display = "none"; document.getElementById("fetch-whisper-medium-q5_0").style.display = "none"; document.getElementById("fetch-whisper-large-q5_0").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-small-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("fetch-whisper-small"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-tiny-en-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-tiny-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-base-en-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-base-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-small-en-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-small-q5_1"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-medium-en-q5_0"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-medium-q5_0"); if (el) el.style.display = "inline-block"; el = document.getElementById("fetch-whisper-large-q5_0"); 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 = 30 * 60; const kMaxRecording_s = 2 * 60; 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 kMaxRecording_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 > kMaxRecording_s * kSampleRate) { audio = audio.slice(0, kMaxRecording_s * kSampleRate); printTextarea( "js: truncated audio to first " + kMaxRecording_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 / kMaxRecording_s + "%"; document.getElementById("progress-text").innerHTML = ((100 * (Date.now() - startTime)) / 1000 / kMaxRecording_s).toFixed( 0 ) + "%"; }, 1000); printTextarea("js: recording ..."); setTimeout(function () { if (doRecording) { printTextarea( "js: recording stopped after " + kMaxRecording_s + " seconds" ); stopRecording(); } }, kMaxRecording_s * 1000); } // // transcribe // var nthreads = 8; function changeThreads(value) { nthreads = value; document.getElementById("threads-value").innerHTML = nthreads; } 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, nthreads, 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>