speech.js
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/** html5 Web Speech 相关 */
var h5Speech = (function(){
//发音速度 1 ~ 10;
var rate;
//队列播放模式 1：覆盖式 -1：完整顺序播报
var queueModel;
var synth = window.speechSynthesis;
//1: 启用 ，0：禁用
var enable;
var storage = window.localStorage;
//读取配置信息
readCofig();
var speechInstance = {
speak: function(t){
if(queueModel == 1)
synth.cancel();
//延迟一会，防止 synth.cancel 将当前项也从队列移除
setTimeout(function(){
var msg = new SpeechSynthesisUtterance(t);
msg.rate = rate;
synth.speak(msg);
}, 100);
},
speakTest: function(t, rate){
var msg = new SpeechSynthesisUtterance(t);
msg.rate = rate;
synth.speak(msg);
},
getCofig: function(){
return {rate: rate, queueModel: queueModel, enable: enable};
},
setCofig: function(r, q, e){
rate = r;
queueModel = q;
enable = e;
writeCofig(rate, queueModel, enable);
return 1;
},
isEnable: function(){
return enable;
}
};
function readCofig(){
//读取配置信息
var ttsCofig = storage.getItem('tts_cofig');
if(ttsCofig){
ttsCofig = JSON.parse(ttsCofig);
rate = ttsCofig.rate;
queueModel = ttsCofig.queueModel;
enable = ttsCofig.enable;
}
else{
//写入默认配置
rate = 1.2;
queueModel = 1;
enable = 1;
writeCofig(rate, queueModel, enable);
}
}
function writeCofig(rate, queueModel, enable){
storage.setItem('tts_cofig', JSON.stringify({rate: rate, queueModel: queueModel, enable: enable}));
}
countDown('speech.js');
return speechInstance;
})();