近期看了一个语音识别的dome-----Web Speech API
本api为js调用云端接口识别
个人测试了一下，响应速度还是比较快的
注意：本API与官网需*使用和访问
展示效果：
页面代码如下：
<!DOCTYPE html>
<meta charset="utf-8">
<title>Web Speech API Demo</title>
<style>
* {
font-family: Verdana, Arial, sans-serif;
}
a:link {
color:#000;
text-decoration: none;
}
a:visited {
color:#000;
}
a:hover {
color:#33F;
}
.button {
background: -webkit-linear-gradient(top,#008dfd 0,#0370ea 100%);
border: 1px solid #076bd2;
border-radius: 3px;
color: #fff;
display: none;
font-size: 13px;
font-weight: bold;
line-height: 1.3;
padding: 8px 25px;
text-align: center;
text-shadow: 1px 1px 1px #076bd2;
letter-spacing: normal;
}
.center {
padding: 10px;
text-align: center;
}
.final {
color: black;
padding-right: 3px;
}
.interim {
color: gray;
}
.info {
font-size: 14px;
text-align: center;
color: #777;
display: none;
}
.right {
float: right;
}
.sidebyside {
display: inline-block;
width: 45%;
min-height: 40px;
text-align: left;
vertical-align: top;
}
#headline {
font-size: 40px;
font-weight: 300;
}
#info {
font-size: 20px;
text-align: center;
color: #777;
visibility: hidden;
}
#results {
font-size: 14px;
font-weight: bold;
border: 1px solid #ddd;
padding: 15px;
text-align: left;
min-height: 150px;
}
#start_button {
border: 0;
background-color:transparent;
padding: 0;
}
</style>
<h1 class="center" id="headline">
<a href="http://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html">
Web Speech API</a> 语音识别</h1>
<div id="info">
<p id="info_start">点击下话筒开始说话</p>
<p id="info_speak_now">正在讲话。。。</p>
<p id="info_no_speech">未检测到语音。您可能需要调整
<a href="//support.google.com/chrome/bin/answer.py?hl=en&answer=1407892">
microphone settings</a>.</p>
<p id="info_no_microphone" style="display:none">
找不到麦克风。确保安装了麦克风，
<a href="//support.google.com/chrome/bin/answer.py?hl=en&answer=1407892">
microphone settings</a> 配置正确</p>
<p id="info_allow">单击上面的“允许”按钮启用麦克风。</p>
<p id="info_denied">拒绝使用麦克风。</p>
<p id="info_blocked">禁止使用麦克风。要改变，
前往： chrome://settings/contentExceptions#media-stream</p>
<p id="info_upgrade">此浏览器不支持Web语音API。
升级到 <a href="//www.google.com/chrome">Chrome</a>
版本25或更高</p>
</div>
<div class="right">
<button id="start_button" onclick="startButton(event)">
<img id="start_img" src="mic.gif" alt="Start"></button>
</div>
<div id="results">
<span id="final_span" class="final"></span>
<span id="interim_span" class="interim"></span>
<p>
</div>
<div class="center">
<div class="sidebyside" style="text-align:right">
<button id="copy_button" class="button" onclick="copyButton()">
Copy and Paste</button>
<div id="copy_info" class="info">
Press Control-C to copy text.<br>(Command-C on Mac.)
</div>
</div>
<div class="sidebyside">
<button id="email_button" class="button" onclick="emailButton()">
Create Email</button>
<div id="email_info" class="info">
Text sent to default email application.<br>
(See chrome://settings/handlers to change.)
</div>
</div>
<p>
<div id="div_language">
<select id="select_language" onchange="updateCountry()"></select>
<select id="select_dialect"></select>
</div>
</div>
<script>
var langs =
[['Afrikaans', ['af-ZA']],
['Bahasa Indonesia',['id-ID']],
['Bahasa Melayu', ['ms-MY']],
['Català', ['ca-ES']],
['Čeština', ['cs-CZ']],
['Deutsch', ['de-DE']],
['English', ['en-AU', 'Australia'],
['en-CA', 'Canada'],
['en-IN', 'India'],
['en-NZ', 'New Zealand'],
['en-ZA', 'South Africa'],
['en-GB', 'United Kingdom'],
['en-US', 'United States']],
['Español', ['es-AR', 'Argentina'],
['es-BO', 'Bolivia'],
['es-CL', 'Chile'],
['es-CO', 'Colombia'],
['es-CR', 'Costa Rica'],
['es-EC', 'Ecuador'],
['es-SV', 'El Salvador'],
['es-ES', 'España'],
['es-US', 'Estados Unidos'],
['es-GT', 'Guatemala'],
['es-HN', 'Honduras'],
['es-MX', 'México'],
['es-NI', 'Nicaragua'],
['es-PA', 'Panamá'],
['es-PY', 'Paraguay'],
['es-PE', 'Perú'],
['es-PR', 'Puerto Rico'],
['es-DO', 'República Dominicana'],
['es-UY', 'Uruguay'],
['es-VE', 'Venezuela']],
['Euskara', ['eu-ES']],
['Français', ['fr-FR']],
['Galego', ['gl-ES']],
['Hrvatski', ['hr_HR']],
['IsiZulu', ['zu-ZA']],
['Íslenska', ['is-IS']],
['Italiano', ['it-IT', 'Italia'],
['it-CH', 'Svizzera']],
['Magyar', ['hu-HU']],
['Nederlands', ['nl-NL']],
['Norsk bokmål', ['nb-NO']],
['Polski', ['pl-PL']],
['Português', ['pt-BR', 'Brasil'],
['pt-PT', 'Portugal']],
['Română', ['ro-RO']],
['Slovenčina', ['sk-SK']],
['Suomi', ['fi-FI']],
['Svenska', ['sv-SE']],
['Türkçe', ['tr-TR']],
['български', ['bg-BG']],
['Pусский', ['ru-RU']],
['Српски', ['sr-RS']],
['한국어', ['ko-KR']],
['中文', ['cmn-Hans-CN', '普通话 (*)'],
['cmn-Hans-HK', '普通话 (香港)'],
['cmn-Hant-TW', '中文 (台灣)'],
['yue-Hant-HK', '粵語 (香港)']],
['日本語', ['ja-JP']],
['Lingua latīna', ['la']]];
for (var i = 0; i < langs.length; i++) {
select_language.options[i] = new Option(langs[i][0], i);
}
select_language.selectedIndex = 29;
updateCountry();
select_dialect.selectedIndex = 0;
showInfo('info_start');
function updateCountry() {
for (var i = select_dialect.options.length - 1; i >= 0; i--) {
select_dialect.remove(i);
}
var list = langs[select_language.selectedIndex];
for (var i = 1; i < list.length; i++) {
select_dialect.options.add(new Option(list[i][1], list[i][0]));
}
select_dialect.style.visibility = list[1].length == 1 ? 'hidden' : 'visible';
}
var create_email = false;
var final_transcript = '';
var recognizing = false;
var ignore_onend;
var start_timestamp;
if (!('webkitSpeechRecognition' in window)) {
upgrade();
} else {
start_button.style.display = 'inline-block';
var recognition = new webkitSpeechRecognition();
recognition.continuous = true;
recognition.interimResults = true;
recognition.onstart = function() {
recognizing = true;
showInfo('info_speak_now');
start_img.src = 'mic-animate.gif';
};
recognition.onerror = function(event) {
if (event.error == 'no-speech') {
start_img.src = 'mic.gif';
showInfo('info_no_speech');
ignore_onend = true;
}
if (event.error == 'audio-capture') {
start_img.src = 'mic.gif';
showInfo('info_no_microphone');
ignore_onend = true;
}
if (event.error == 'not-allowed') {
if (event.timeStamp - start_timestamp < 100) {
showInfo('info_blocked');
} else {
showInfo('info_denied');
}
ignore_onend = true;
}
};
recognition.onend = function() {
recognizing = false;
if (ignore_onend) {
return;
}
start_img.src = 'mic.gif';
if (!final_transcript) {
showInfo('info_start');
return;
}
showInfo('');
if (window.getSelection) {
window.getSelection().removeAllRanges();
var range = document.createRange();
range.selectNode(document.getElementById('final_span'));
window.getSelection().addRange(range);
}
if (create_email) {
create_email = false;
createEmail();
}
};
recognition.onresult = function(event) {
var interim_transcript = '';
for (var i = event.resultIndex; i < event.results.length; ++i) {
if (event.results[i].isFinal) {
final_transcript += event.results[i][0].transcript;
} else {
interim_transcript += event.results[i][0].transcript;
}
}
final_transcript = capitalize(final_transcript);
final_span.innerHTML = linebreak(final_transcript);
interim_span.innerHTML = linebreak(interim_transcript);
if (final_transcript || interim_transcript) {
showButtons('inline-block');
}
};
}
function upgrade() {
start_button.style.visibility = 'hidden';
showInfo('info_upgrade');
}
var two_line = /\n\n/g;
var one_line = /\n/g;
function linebreak(s) {
return s.replace(two_line, '<p></p>').replace(one_line, '<br>');
}
var first_char = /\S/;
function capitalize(s) {
return s.replace(first_char, function(m) { return m.toUpperCase(); });
}
function createEmail() {
var n = final_transcript.indexOf('\n');
if (n < 0 || n >= 80) {
n = 40 + final_transcript.substring(40).indexOf(' ');
}
var subject = encodeURI(final_transcript.substring(0, n));
var body = encodeURI(final_transcript.substring(n + 1));
window.location.href = 'mailto:?subject=' + subject + '&body=' + body;
}
function copyButton() {
if (recognizing) {
recognizing = false;
recognition.stop();
}
copy_button.style.display = 'none';
copy_info.style.display = 'inline-block';
showInfo('');
}
function emailButton() {
if (recognizing) {
create_email = true;
recognizing = false;
recognition.stop();
} else {
createEmail();
}
email_button.style.display = 'none';
email_info.style.display = 'inline-block';
showInfo('');
}
function startButton(event) {
if (recognizing) {
recognition.stop();
return;
}
final_transcript = '';
recognition.lang = select_dialect.value;
recognition.start();
ignore_onend = false;
final_span.innerHTML = '';
interim_span.innerHTML = '';
start_img.src = 'mic-slash.gif';
showInfo('info_allow');
showButtons('none');
start_timestamp = event.timeStamp;
}
function showInfo(s) {
if (s) {
for (var child = info.firstChild; child; child = child.nextSibling) {
if (child.style) {
child.style.display = child.id == s ? 'inline' : 'none';
}
}
info.style.visibility = 'visible';
} else {
info.style.visibility = 'hidden';
}
}
var current_style;
function showButtons(style) {
if (style == current_style) {
return;
}
current_style = style;
copy_button.style.display = style;
email_button.style.display = style;
copy_info.style.display = 'none';
email_info.style.display = 'none';
}
</script>
网盘地址：（个人）（正式版本以官方示例为主）
https://pan.baidu.com/s/1Q1XkJCQvJfDRn8azv9l0gA
提取码：
nhyi
注意：本api使用时需*使用