500 lines
19 KiB
HTML
500 lines
19 KiB
HTML
<!doctype html>
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<html lang="en-us">
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<head>
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<title>wchess : voice-controlled chess using Whisper + WebAssembly</title>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/4.3.1/iframeResizer.contentWindow.min.js"></script>
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<meta name="viewport" content="width=device-width, initial-scale=0.7, maximum-scale=1, minimum-scale=0.7, user-scalable=no"/>
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<style>
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#output {
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width: 100%;
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height: 100%;
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margin: 0 auto;
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margin-top: 10px;
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border-left: 0px;
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border-right: 0px;
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padding-left: 0px;
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padding-right: 0px;
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display: block;
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background-color: black;
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color: white;
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font-size: 10px;
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font-family: 'Lucida Console', Monaco, monospace;
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outline: none;
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white-space: pre;
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overflow-wrap: normal;
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overflow-x: scroll;
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}
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.button {
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background-color: #000000;
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color: #FFFFFF;
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padding: 20px;
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border-radius: 10px;
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-moz-border-radius: 10px;
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-webkit-border-radius: 10px;
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margin:10px;
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width: 100px;
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height: 50px;
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-webkit-touch-callout: none; /* Safari */
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-webkit-user-select: none; /* Chrome */
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-moz-user-select: none; /* Firefox */
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-ms-user-select: none; /* Internet Explorer/Edge */
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user-select: none;
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}
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button[disabled]{
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background-color: #cccccc;
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color: #666666;
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padding: 20px;
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border-radius: 10px;
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-moz-border-radius: 10px;
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-webkit-border-radius: 10px;
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margin:10px;
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width: 100px;
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}
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.center {
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display: flex;
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justify-content: center;
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align-items: center;
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width: 500px;
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}
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#description {
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width: 500px;
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}
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</style>
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<link rel="stylesheet" href="css/chessboard-1.0.0.min.css" integrity="sha384-q94+BZtLrkL1/ohfjR8c6L+A6qzNH9R2hBLwyoAfu3i/WCvQjzL2RQJ3uNHDISdU" crossorigin="anonymous">
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</head>
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<body>
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<div id="main-container">
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<div id="description">
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<b>wchess : voice-controlled chess using Whisper + WebAssembly</b>
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<br><br>
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This is a demonstration of using Whisper to recognize voice commands in the browser.
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<br><br>
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Usage:<br>
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<ul>
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<li>Select a Whisper model</li>
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<li>Accept the microphone permission request if prompted</li>
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<li>Hold the button and say a chess move (e.g. "Knight to c3")</li>
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<li>Release the button and wait for the move to be recognized</li>
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<li>Repeat</li>
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</ul>
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Examples:<br>
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<ul>
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<li><b>"d4"</b></li>
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<li><b>"e2 e4"</b></li>
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<li><b>"Knight f3"</b></li>
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<li><b>"Bishop to b5"</b></li>
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</ul>
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Features:<br>
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<ul>
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<li>Model quantization for reduced memory footprint (~42MB)</li>
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<li><a href="https://github.com/ggerganov/whisper.cpp/pull/1229">Grammar-based sampling</a> for improved recognition accuracy</li>
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</ul>
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<b>
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Note that not all chess moves are supported. For example, castling and pawn promotion
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currently do not work, but can be easily implemented. There could also be some bugs in
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the move handling logic in general. The main reason for that is to keep the implementation
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simple. The assumption is that a real application would already have a proper move
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validation logic in place.<br><br>
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The main purpose of this example is to demonstrate the capabilities of whisper.cpp and
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its application in the browser for voice recognition locally on your device.
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</b>
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<br><br>
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You can find more about this project on <a href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/wchess">GitHub</a>.
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<br><br>
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<b>More examples:</b>
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<a href="https://whisper.ggerganov.com/">main</a> |
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<a href="https://whisper.ggerganov.com/bench">bench</a> |
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<a href="https://whisper.ggerganov.com/stream">stream</a> |
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<a href="https://whisper.ggerganov.com/command">command</a> |
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<a href="https://whisper.ggerganov.com/talk">talk</a> |
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<br><br>
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</div>
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<hr>
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<div id="model-whisper">
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Whisper model: <span id="model-whisper-status"></span>
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<button id="fetch-whisper-tiny-en" onclick="loadWhisper()">tiny.en (Q8_0, 42 MB)</button>
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<span id="fetch-whisper-progress"></span>
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<br><br>
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<button id="clear" onclick="clearCache()">Clear browser cache</button>
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<!--
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<input type="file" id="file" name="file" onchange="loadFile(event, 'whisper.bin')" />
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-->
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</div>
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<div id="game">
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<br>
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<div id="chessboard" style="width: 500px"></div>
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<script src="js/jquery-3.7.1.min.js"></script>
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<script src="js/chessboard-1.0.0.min.js"></script>
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<script>
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var board = Chessboard('chessboard', 'start')
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var move_count = 0;
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</script>
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<br>
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<div id="state">
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Status: <b><span id="state-status">select model</span></b>
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<div id="input" class="center">
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<button id="toggler" class="button" onselectstart="return false" style="display: none">Hold</button>
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</div>
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<pre id="state-grammar">[The grammar will be displayed here]</pre>
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<pre id="state-moves">[The moves will be displayed here]</pre>
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</div>
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</div>
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<hr>
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Debug output:
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<textarea id="output" rows="20"></textarea>
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<br>
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<b>Troubleshooting</b>
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<br><br>
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The page does some heavy computations, so make sure:
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<ul>
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<li>To use a modern web browser (e.g. Chrome, Firefox)</li>
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<li>Your browser supports WASM <a href="https://webassembly.org/roadmap/">Fixed-width SIMD</a></li>
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</ul>
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<div class="cell-version">
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<span>
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Build time: <span class="nav-link">@GIT_DATE@</span> |
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Commit hash: <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/commit/@GIT_SHA1@">@GIT_SHA1@</a> |
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Commit subject: <span class="nav-link">@GIT_COMMIT_SUBJECT@</span> |
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<a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/command.wasm">Source Code</a> |
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</span>
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</div>
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</div>
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<script type="text/javascript" src="js/helpers.js"></script>
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<script type='text/javascript'>
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// web audio context
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var context = null;
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// the command instance
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var instance = null;
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// model name
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var model_whisper = null;
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var model_file = null;
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var module_ready = null;
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var Module = {
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print: printTextarea,
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printErr: printTextarea,
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setStatus: function(text) {
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printTextarea('js: ' + text);
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},
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monitorRunDependencies: function(left) {
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},
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preRun: function() {
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printTextarea('js: Preparing ...');
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},
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postRun: function() {
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printTextarea('js: Module initialized successfully!');
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module_ready = true;
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initInstance();
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}
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};
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function initInstance() {
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if (!module_ready || !model_file || instance) return
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instance = Module.init(model_file);
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if (instance) {
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setStatus('Ready');
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printTextarea("js: whisper initialized, instance: " + instance);
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}
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else {
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printTextarea("js: failed to initialize whisper");
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}
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}
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function setStatus(text) {
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document.getElementById('state-status').innerHTML = text;
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}
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//
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// fetch models
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//
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let dbVersion = 1
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let dbName = 'whisper.ggerganov.com';
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let indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB
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function storeFS(fname, buf) {
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// write to WASM file using FS_createDataFile
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// if the file exists, delete it
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try {
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Module.FS_unlink(fname);
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} catch (e) {
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// ignore
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}
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Module.FS_createDataFile("/", fname, buf, true, true);
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printTextarea('storeFS: stored model: ' + fname + ' size: ' + buf.length);
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document.getElementById('model-whisper-status').innerHTML = 'loaded "' + model_whisper + '"!';
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model_file = fname;
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initInstance();
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}
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function loadWhisper() {
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setStatus('Loading')
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//let url = 'https://whisper.ggerganov.com/ggml-model-whisper-tiny.en-q8_0.bin';
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let url = 'https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-tiny.en-q8_0.bin';
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let dst = 'whisper.bin';
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let size_mb = 42;
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model_whisper = 'tiny.en-q8_0';
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document.getElementById('model-whisper-status').innerHTML = 'loading "' + model_whisper + '" ... ';
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document.getElementById('fetch-whisper-tiny-en').style.display = 'none';
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cbProgress = function(p) {
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let el = document.getElementById('fetch-whisper-progress');
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el.innerHTML = Math.round(100*p) + '%';
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};
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cbCancel = function() {
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var el;
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el = document.getElementById('model-whisper-status'); if (el) el.innerHTML = '';
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};
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loadRemote(url, dst, size_mb, cbProgress, storeFS, cbCancel, printTextarea);
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// init audio capture so that the user receives a permission request
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{
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let context = new AudioContext({
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sampleRate: 16000,
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channelCount: 1,
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echoCancellation: false,
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autoGainControl: true,
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noiseSuppression: true,
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});
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navigator.mediaDevices.getUserMedia({audio: true, video: false})
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.then(function(s) {
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stream = s;
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stream.getTracks().forEach(function(track) {
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track.stop();
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});
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})
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.catch(function(err) {
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printTextarea('js: error getting audio stream: ' + err);
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});
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context.close();
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}
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document.getElementById('toggler').style.display = 'block';
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}
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//
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// microphone
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//
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const kSampleRate = 16000;
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const kRestartRecording_s = 120;
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const kIntervalAudio_ms = 250; // pass the recorded audio to the C++ instance at this rate
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var mediaRecorder = null;
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var doRecording = false;
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var startTime = 0;
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window.AudioContext = window.AudioContext || window.webkitAudioContext;
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window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext;
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function stopRecording() {
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if (mediaRecorder) {
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mediaRecorder.stop();
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}
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}
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function startRecording() {
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if (!context) {
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context = new AudioContext({
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sampleRate: kSampleRate,
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channelCount: 1,
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echoCancellation: false,
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autoGainControl: true,
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noiseSuppression: true,
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});
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}
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startTime = Date.now();
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var chunks = [];
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var stream = null;
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navigator.mediaDevices.getUserMedia({audio: true, video: false})
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.then(function(s) {
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stream = s;
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mediaRecorder = new MediaRecorder(stream);
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mediaRecorder.ondataavailable = function(e) {
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chunks.push(e.data);
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var blob = new Blob(chunks, { 'type' : 'audio/ogg; codecs=opus' });
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var reader = new FileReader();
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reader.onload = function(event) {
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var buf = new Uint8Array(reader.result);
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context.decodeAudioData(buf.buffer, function(audioBuffer) {
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var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate);
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var source = offlineContext.createBufferSource();
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source.buffer = audioBuffer;
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source.connect(offlineContext.destination);
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source.start(0);
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offlineContext.startRendering().then(function(renderedBuffer) {
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let audio = renderedBuffer.getChannelData(0);
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printTextarea('js: number of samples: ' + audio.length);
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Module.set_audio(instance, audio);
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});
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mediaRecorder = null;
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context = null;
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});
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}
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reader.readAsArrayBuffer(blob);
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};
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mediaRecorder.onstop = function(e) {
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stream.getTracks().forEach(function(track) {
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track.stop();
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});
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};
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mediaRecorder.start();
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})
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.catch(function(err) {
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printTextarea('js: error getting audio stream: ' + err);
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});
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}
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//
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// main
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//
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var nLines = 0;
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var movesAll = '';
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// document.body.addEventListener('keydown', function(event) {
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// if (event.keyCode === 32) {
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// document.getElementById('toggler').innerText = "";
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// onStart();
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// }
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// }, true);
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// document.body.addEventListener('keyup', function(event) {
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// if (event.keyCode === 32) {
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// document.getElementById('toggler').innerText = "Hold";
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// onStop();
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// }
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// }, true);
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document.getElementById('toggler').addEventListener("touchstart", function(event){
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this.innerText = "";
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onStart();
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}, true);
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document.getElementById('toggler').addEventListener("touchend", function(event){
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this.innerText = "Hold";
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onStop();
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}, true)
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document.getElementById('toggler').addEventListener('mousedown', function(event) {
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this.innerText = "";
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onStart();
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}, true);
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document.getElementById('toggler').addEventListener('mouseup', function(event) {
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this.innerText = "Hold";
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onStop();
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}, true);
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function onStart() {
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if (!instance) return;
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setStatus('Listening');
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startRecording();
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}
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function onStop() {
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setStatus('Processing');
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printTextarea('js: stopping recording ...');
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stopRecording();
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}
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function setMove(move, prob) {
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if (move != null && move.length > 1) {
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let gameOver = move[move.length - 1] === '#';
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if (gameOver) {
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move = move.substring(0, move.length - 1);
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document.getElementById('toggler').disabled = true;
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}
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board.move(move);
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movesAll += move + ', prob = ' + prob.toFixed(2) + '% <br>';
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nLines++;
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// if more than 10 lines, remove the first line
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if (nLines > 10) {
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var i = movesAll.indexOf('<br>');
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if (i > 0) {
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movesAll = movesAll.substring(i + 4);
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nLines--;
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}
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}
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++move_count;
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setStatus(gameOver ? 'Done' : move_count % 2 ? 'Black\'s turn' : 'White\'s turn');
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document.getElementById('state-moves').innerHTML = movesAll;
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}
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else {
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setStatus('Failed. ' + (move_count % 2 ? 'Black\'s turn' : 'White\'s turn'));
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}
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}
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function setGrammar(grammar) {
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document.getElementById('state-grammar').innerHTML = grammar;
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}
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</script>
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<script type="text/javascript" src="js/chess.js"></script>
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</body>
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</html>
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