分类
为语音转换为文本提供可能,Speech Recognition;
将文本输出为语音提供可能,Speech Synthesis;
基本说明
目前Chrome新版本浏览器支持该方案;
经过测试FF、Opera、IE、Safari没有对此进行支持;
该协议由Speech API Community Group维护;
当前规范不属于正式规范,但是以后以此作为参考方案;
要点说明
对于将语音与文本相互转换的技术是需要通过网络数据来实现的,也就是说,该API必须在网络条件下才能运行
Speech Recognition
Demo可以参考:41ZONE测试代码
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var SpeechRecognition = window.SpeechRecognition ||
window.mozSpeechRecognition ||
window.webkitSpeechRecognition ||
window.msSpeechRecognition ||
window.oSpeechRecognition;
if(!SpeechRecognition) return ;
var speechRecognition = new SpeechRecognition();
speechRecognition.addEventListener("result",function(event) {
var results = event.results;
if(results.length > 0) {
for(var i = 0;i<results.length;i++) {
console.log(results[i][0].transcript);
}
}
},false);
speechRecognition.continuous = true; speechRecognition.start();
Speech Synthesis
注意:当前没有浏览器对此接口方案支持
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var ssu = new SpeechSynthesisUtterance();
ssu.text = 'Hello World';
ssu.lang = 'en-US';
ssu.rate = 1.2;
ssu.addEventListener("end",function(event) { console.log("finished"); },false);
var su = new SpeechSynthesis();
su.speak(ssu);
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