百度语音合成播放

var audio = document.getElementById("myAudio");
var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
if(!(isIE||isEdge||isIE11)){//非ie浏览器
    audio.addEventListener('playing', function () {
        $(':button').attr("disabled",true);
    }, false);

    audio.addEventListener('ended', function () {
        $(':button').attr("disabled",false);
    }, false);
}

    function broadCast(token, zhText) {
       //判断浏览器
        var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
        var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
        var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
        var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
        if(isIE||isEdge||isIE11) {
            //ie浏览器
            var voice=document.createElement("bgsound");
            document.body.appendChild(voice);
            var audioSrc = "http://tsn.baidu.com/text2audio?lan=zh&cuid=123&ctp=1&spd=3&tex=" + zhText + "\"&tok=" + token;
            voice.src=audioSrc;
        } else{
            //不是ie浏览器
            if (audio.paused) { //已经播放完毕
                var audioSrc = "http://tsn.baidu.com/text2audio?lan=zh&cuid=123&ctp=1&spd=3&tex=" + zhText + "\"&tok=" + token;
                console.log("--audio:"+audio);
                console.log("--audioSrc:"+audioSrc);
                console.log("--audioSrc type:"+ typeof audioSrc);
                // audio.type='audio/mpeg';
//            source.src="http://tsn.baidu.com/text2audio?lan=zh&cuid=123&ctp=1&spd=3&tex=hello&tok=24.70b121c60ff4553de615166eb3d8e737.2592000.1553950115.282335-9969555";
                audio.src = audioSrc;
                audio.play();
            } else {
                sleepBroadCast(token, zhText, 1000);
            }
        }

原文地址：https://www.cnblogs.com/liangmm/p/11677526.html