voiceSDK.js

var VoiceRSS = {
  speech: function (e) {
    this._validate(e), this._request(e);
  },
  _validate: function (e) {
    if (!e) throw "The settings are undefined";
    if (!e.key) throw "The API key is undefined";
    if (!e.src) throw "The text is undefined";
    if (!e.hl) throw "The language is undefined";
    if (e.c && "auto" != e.c.toLowerCase()) {
      var a = !1;
      switch (e.c.toLowerCase()) {
        case "mp3":
          a = new Audio().canPlayType("audio/mpeg").replace("no", "");
          break;
        case "wav":
          a = new Audio().canPlayType("audio/wav").replace("no", "");
          break;
        case "aac":
          a = new Audio().canPlayType("audio/aac").replace("no", "");
          break;
        case "ogg":
          a = new Audio().canPlayType("audio/ogg").replace("no", "");
          break;
        case "caf":
          a = new Audio().canPlayType("audio/x-caf").replace("no", "");
      }
      if (!a) throw "The browser does not support the audio codec " + e.c;
    }
  },
  _request: function (e) {
    var a = this._buildRequest(e),
      t = this._getXHR();
    (t.onreadystatechange = function () {
      if (4 == t.readyState && 200 == t.status) {
        if (0 == t.responseText.indexOf("ERROR")) throw t.responseText;
        audioEl.src = t.responseText;
        audioEl.play();
      }
    }),
      t.open("POST", "https://api.voicerss.org/", !0),
      t.setRequestHeader(
        "Content-Type",
        "application/x-www-form-urlencoded; charset=UTF-8"
      ),
      t.send(a);
  },
  _buildRequest: function (e) {
    var a = e.c && "auto" != e.c.toLowerCase() ? e.c : this._detectCodec();
    return (
      "key=" +
      (e.key || "") +
      "&src=" +
      (e.src || "") +
      "&hl=" +
      (e.hl || "") +
      "&v=" +
      (e.v || "") +
      "&r=" +
      (e.r || "") +
      "&c=" +
      (a || "") +
      "&f=" +
      (e.f || "") +
      "&ssml=" +
      (e.ssml || "") +
      "&b64=true"
    );
  },
  _detectCodec: function () {
    var e = new Audio();
    return e.canPlayType("audio/mpeg").replace("no", "")
      ? "mp3"
      : e.canPlayType("audio/wav").replace("no", "")
      ? "wav"
      : e.canPlayType("audio/aac").replace("no", "")
      ? "aac"
      : e.canPlayType("audio/ogg").replace("no", "")
      ? "ogg"
      : e.canPlayType("audio/x-caf").replace("no", "")
      ? "caf"
      : "";
  },
  _getXHR: function () {
    try {
      return new XMLHttpRequest();
    } catch (e) {}
    try {
      return new ActiveXObject("Msxml3.XMLHTTP");
    } catch (e) {}
    try {
      return new ActiveXObject("Msxml2.XMLHTTP.6.0");
    } catch (e) {}
    try {
      return new ActiveXObject("Msxml2.XMLHTTP.3.0");
    } catch (e) {}
    try {
      return new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {}
    try {
      return new ActiveXObject("Microsoft.XMLHTTP");
    } catch (e) {}
    throw "The browser does not support HTTP request";
  },
};