Terjemahan disediakan oleh mesin penerjemah. Jika konten terjemahan yang diberikan bertentangan dengan versi bahasa Inggris aslinya, utamakan versi bahasa Inggris.
Bagian ini menyediakan kode untuk HTML5 klien yang dijelaskan dalamContoh Python (HTML5 Klien dan Server Python).
<html>
<head>
<title>Text-to-Speech Example Application</title>
<script>
/*
* This sample code requires a web browser with support for both the
* HTML5 and ECMAScript 5 standards; the following is a non-comprehensive
* list of compliant browsers and their minimum version:
*
* - Chrome 23.0+
* - Firefox 21.0+
* - Internet Explorer 9.0+
* - Edge 12.0+
* - Opera 15.0+
* - Safari 6.1+
* - Android (stock web browser) 4.4+
* - Chrome for Android 51.0+
* - Firefox for Android 48.0+
* - Opera Mobile 37.0+
* - iOS (Safari Mobile and Chrome) 3.2+
* - Internet Explorer Mobile 10.0+
* - Blackberry Browser 10.0+
*/
// Mapping of the OutputFormat parameter of the SynthesizeSpeech API
// and the audio format strings understood by the browser
var AUDIO_FORMATS = {
'ogg_vorbis': 'audio/ogg',
'mp3': 'audio/mpeg',
'pcm': 'audio/wave; codecs=1'
};
/**
* Handles fetching JSON over HTTP
*/
function fetchJSON(method, url, onSuccess, onError) {
var request = new XMLHttpRequest();
request.open(method, url, true);
request.onload = function () {
// If loading is complete
if (request.readyState === 4) {
// if the request was successful
if (request.status === 200) {
var data;
// Parse the JSON in the response
try {
data = JSON.parse(request.responseText);
} catch (error) {
onError(request.status, error.toString());
}
onSuccess(data);
} else {
onError(request.status, request.responseText)
}
}
};
request.send();
}
/**
* Returns a list of audio formats supported by the browser
*/
function getSupportedAudioFormats(player) {
return Object.keys(AUDIO_FORMATS)
.filter(function (format) {
var supported = player.canPlayType(AUDIO_FORMATS[format]);
return supported === 'probably' || supported === 'maybe';
});
}
// Initialize the application when the DOM is loaded and ready to be
// manipulated
document.addEventListener("DOMContentLoaded", function () {
var input = document.getElementById('input'),
voiceMenu = document.getElementById('voice'),
text = document.getElementById('text'),
player = document.getElementById('player'),
submit = document.getElementById('submit'),
supportedFormats = getSupportedAudioFormats(player);
// Display a message and don't allow submitting the form if the
// browser doesn't support any of the available audio formats
if (supportedFormats.length === 0) {
submit.disabled = true;
alert('The web browser in use does not support any of the' +
' available audio formats. Please try with a different' +
' one.');
}
// Play the audio stream when the form is submitted successfully
input.addEventListener('submit', function (event) {
// Validate the fields in the form, display a message if
// unexpected values are encountered
if (voiceMenu.selectedIndex <= 0 || text.value.length === 0) {
alert('Please fill in all the fields.');
} else {
var selectedVoice = voiceMenu
.options[voiceMenu.selectedIndex]
.value;
// Point the player to the streaming server
player.src = '/read?voiceId=' +
encodeURIComponent(selectedVoice) +
'&text=' + encodeURIComponent(text.value) +
'&outputFormat=' + supportedFormats[0];
player.play();
}
// Stop the form from submitting,
// Submitting the form is allowed only if the browser doesn't
// support Javascript to ensure functionality in such a case
event.preventDefault();
});
// Load the list of available voices and display them in a menu
fetchJSON('GET', '/voices',
// If the request succeeds
function (voices) {
var container = document.createDocumentFragment();
// Build the list of options for the menu
voices.forEach(function (voice) {
var option = document.createElement('option');
option.value = voice['Id'];
option.innerHTML = voice['Name'] + ' (' +
voice['Gender'] + ', ' +
voice['LanguageName'] + ')';
container.appendChild(option);
});
// Add the options to the menu and enable the form field
voiceMenu.appendChild(container);
voiceMenu.disabled = false;
},
// If the request fails
function (status, response) {
// Display a message in case loading data from the server
// fails
alert(status + ' - ' + response);
});
});
</script>
<style>
#input {
min-width: 100px;
max-width: 600px;
margin: 0 auto;
padding: 50px;
}
#input div {
margin-bottom: 20px;
}
#text {
width: 100%;
height: 200px;
display: block;
}
#submit {
width: 100%;
}
</style>
</head>
<body>
<form id="input" method="GET" action="/read">
<div>
<label for="voice">Select a voice:</label>
<select id="voice" name="voiceId" disabled>
<option value="">Choose a voice...</option>
</select>
</div>
<div>
<label for="text">Text to read:</label>
<textarea id="text" maxlength="1000" minlength="1" name="text"
placeholder="Type some text here..."></textarea>
</div>
<input type="submit" value="Read" id="submit" />
</form>
<audio id="player"></audio>
</body>
</html>