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index.html
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<!DOCTYPE html>
<html lang="en-us">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Whisper demo</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/jquery.min.js" integrity="sha512-aVKKRRi/Q/YV+4mjoKBsE4x3H+BkegoM/em46NNlCqNTmUYADjBbeNefNxYV7giUp0VxICtqdrbqU7iVaeZNXA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.9.1/font/bootstrap-icons.css">
<style>
#record {
border-radius: 50%;
width: 200px;
height: 200px;
margin: auto;
display: block;
text-align: center;
}
.visualizer {
display: block;
text-align: center;
margin: auto;
margin-top: 10px;
max-width: 60%;
height: 60px;
}
</style>
</head>
<body>
<div class="container">
<header>
<h1>Whisper demo</h1>
</header>
Hold the record button or spacebar, then speak to view the resulting predicted transcript<br>
<button id="record" class="btn btn-primary">
<i class="bi bi-mic"></i> Record
<canvas class="visualizer" height="60px"></canvas>
</button>
Or upload a file here: <input id="upload" type="file"> Language:
<select id="language"><option value="">auto</option></select>
<div id="result"></div><br>
<div id="translation"></div>
API docs: <a href="https://a100.auckland-cer.cloud.edu.au/docs">https://a100.auckland-cer.cloud.edu.au/docs</a>
</div>
<script>
LANGUAGES = {
"en": "english",
"zh": "chinese",
"de": "german",
"es": "spanish",
"ru": "russian",
"ko": "korean",
"fr": "french",
"ja": "japanese",
"pt": "portuguese",
"tr": "turkish",
"pl": "polish",
"ca": "catalan",
"nl": "dutch",
"ar": "arabic",
"sv": "swedish",
"it": "italian",
"id": "indonesian",
"hi": "hindi",
"fi": "finnish",
"vi": "vietnamese",
"he": "hebrew",
"uk": "ukrainian",
"el": "greek",
"ms": "malay",
"cs": "czech",
"ro": "romanian",
"da": "danish",
"hu": "hungarian",
"ta": "tamil",
"no": "norwegian",
"th": "thai",
"ur": "urdu",
"hr": "croatian",
"bg": "bulgarian",
"lt": "lithuanian",
"la": "latin",
"mi": "maori",
"ml": "malayalam",
"cy": "welsh",
"sk": "slovak",
"te": "telugu",
"fa": "persian",
"lv": "latvian",
"bn": "bengali",
"sr": "serbian",
"az": "azerbaijani",
"sl": "slovenian",
"kn": "kannada",
"et": "estonian",
"mk": "macedonian",
"br": "breton",
"eu": "basque",
"is": "icelandic",
"hy": "armenian",
"ne": "nepali",
"mn": "mongolian",
"bs": "bosnian",
"kk": "kazakh",
"sq": "albanian",
"sw": "swahili",
"gl": "galician",
"mr": "marathi",
"pa": "punjabi",
"si": "sinhala",
"km": "khmer",
"sn": "shona",
"yo": "yoruba",
"so": "somali",
"af": "afrikaans",
"oc": "occitan",
"ka": "georgian",
"be": "belarusian",
"tg": "tajik",
"sd": "sindhi",
"gu": "gujarati",
"am": "amharic",
"yi": "yiddish",
"lo": "lao",
"uz": "uzbek",
"fo": "faroese",
"ht": "haitian creole",
"ps": "pashto",
"tk": "turkmen",
"nn": "nynorsk",
"mt": "maltese",
"sa": "sanskrit",
"lb": "luxembourgish",
"my": "myanmar",
"bo": "tibetan",
"tl": "tagalog",
"mg": "malagasy",
"as": "assamese",
"tt": "tatar",
"haw": "hawaiian",
"ln": "lingala",
"ha": "hausa",
"ba": "bashkir",
"jw": "javanese",
"su": "sundanese",
"yue": "cantonese",
}
var keysSorted = Object.keys(LANGUAGES).sort(function(a,b){return LANGUAGES[a].localeCompare(LANGUAGES[b])})
for (var k of keysSorted) {
$("#language").append(`<option value="${k}">${LANGUAGES[k]}</option>`)
}
var colors = ['#8dd3c7','#ffffb3','#bebada','#fb8072','#80b1d3','#fdb462','#b3de69','#fccde5','#d9d9d9','#bc80bd','#ccebc5','#ffed6f']
function render(response) {
var html = `<table class="table">
<tr>
<th>Speaker</th>
<th>Start time</th>
<th>End time</th>
<th>Transcript</th>
</tr>`
for (var chunk of response.output.speakers) {
var speakerID = parseInt(chunk.speaker.replace("SPEAKER_", ""))
var color = colors[speakerID % colors.length] + "8f"
html += `<tr style="background-color:${color}">
<td>${chunk.speaker}</td>
<td>${chunk.timestamp[0]}</td>
<td>${chunk.timestamp[1]}</td>
<td>${chunk.text}</td>
</tr>`
}
html += "</table>"
return html
}
const BASE_URL = "https://a100.auckland-cer.cloud.edu.au/"
$("#upload").change(function() {
if (!this.files[0]) return;
var form = new FormData()
form.append("audio", this.files[0]);
form.append("diarise_audio", true);
form.append("language", $("#language").val())
$("#result").text("Processing...")
var startTime = new Date().getTime()
$.ajax({
url: BASE_URL + "upload",
data: form,
type: 'POST',
cache: false,
processData: false,
contentType: false,
success: function (response) {
console.log(response)
$("#result").html(`
Processing time: ${(new Date().getTime() - startTime) / 1000}s<br>
${render(response)}<br><br>
`)
},
error: function(e, textStatus, errorThrown) {
$("#result").html(`<div class="alert alert-danger" role="alert">
${e.responseJSON.detail}
</div>`);
}
});
});
$.ajax(BASE_URL + "docs", {
timeout: 2000,
error: function(e, textStatus, errorThrown) {
$("#result").html(`<div class="alert alert-danger" role="alert">
ERROR: ${textStatus}. Unable to reach ${BASE_URL} - is the server running?
</div>`);
}
})
// Based on https://github.com/mdn/dom-examples/tree/main/media/web-dictaphone
// visualiser setup - create web audio api context and canvas
let audioCtx, mediaRecorder;
const canvas = document.querySelector('.visualizer');
const canvasCtx = canvas.getContext("2d");
//main block for doing the audio recording
if (navigator.mediaDevices.getUserMedia) {
console.log('getUserMedia supported.');
let start = function() {
if (mediaRecorder.state != "recording") {
console.log("recording")
mediaRecorder.start();
$("#record").attr("class", "btn btn-danger")
$("#record i").attr("class", "bi bi-mic-fill")
}
return false
}
let stop = function() {
if (mediaRecorder.state == "recording") {
mediaRecorder.stop();
}
}
$("#record").on("mousedown touchstart", start)
$(document).keydown(function(event) {
if (event.code === 'Space') {
start()
}
})
$(document).on("mouseup touchend", stop)
$(document).keyup(stop)
let onSuccess = function (stream) {
mediaRecorder = new MediaRecorder(stream);
visualize(stream);
mediaRecorder.ondataavailable = function (e) {
console.log(e)
$("#record").attr("class", "btn btn-primary")
$("#record i").attr("class", "bi bi-mic")
if (e.data.size < 5000) {
$("#result").text("Audio too short - try speaking for longer")
return
}
var form = new FormData()
form.append("audio", e.data);
form.append("language", $("#language").val())
$("#result").text("Processing...")
var startTime = new Date();
$.ajax({
url: BASE_URL + "upload",
data: form,
type: 'POST',
cache: false,
processData: false,
contentType: false,
success: function (response) {
console.log(response)
$("#result").html(`
Processing time: ${(new Date().getTime() - startTime) / 1000}s<br>
Transcript: ${response.output.text}<br><br>
Raw JSON: <code>${JSON.stringify(response.output)}</code><br>
`)
},
error: function(e, textStatus, errorThrown) {
$("#result").text(errorThrown)
}
});
form.append("task", "translate")
$.ajax({
url: BASE_URL + "upload",
data: form,
type: 'POST',
cache: false,
processData: false,
contentType: false,
success: function (response) {
console.log(response)
$("#translation").html(`
Translation: ${response.output.text}<br><br>
Raw JSON: <code>${JSON.stringify(response.output)}</code><br>
`)
},
error: function(e, textStatus, errorThrown) {
$("#translation").text(errorThrown)
}
});
}
}
let onError = function (err) {
console.log('The following error occured: ' + err);
}
navigator.mediaDevices.getUserMedia({ audio: true }).then(onSuccess, onError);
} else {
console.log('getUserMedia not supported on your browser!');
}
function visualize(stream) {
if (!audioCtx) {
audioCtx = new AudioContext();
}
const source = audioCtx.createMediaStreamSource(stream);
const analyser = audioCtx.createAnalyser();
analyser.fftSize = 2048;
const bufferLength = analyser.frequencyBinCount;
const dataArray = new Uint8Array(bufferLength);
source.connect(analyser);
//analyser.connect(audioCtx.destination);
draw()
function draw() {
const WIDTH = canvas.width
const HEIGHT = canvas.height;
requestAnimationFrame(draw);
analyser.getByteTimeDomainData(dataArray);
canvasCtx.fillStyle = 'rgb(200, 200, 200)';
canvasCtx.fillRect(0, 0, WIDTH, HEIGHT);
canvasCtx.lineWidth = 2;
canvasCtx.strokeStyle = 'rgb(0, 0, 0)';
canvasCtx.beginPath();
let sliceWidth = WIDTH * 1.0 / bufferLength;
let x = 0;
for (let i = 0; i < bufferLength; i++) {
let v = dataArray[i] / 128.0;
let y = v * HEIGHT / 2;
if (i === 0) {
canvasCtx.moveTo(x, y);
} else {
canvasCtx.lineTo(x, y);
}
x += sliceWidth;
}
canvasCtx.lineTo(canvas.width, canvas.height / 2);
canvasCtx.stroke();
}
}
</script>
</body>
</html>