voiceAPI.js

// VoiceRSS Javascript SDK - VOICE API
const 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;
                // new Audio(t.responseText).play();
                (audioElement.src = t.responseText), audioElement.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 || "") +
            "&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) {
            console.error(e);
        }
        try {
            return new ActiveXObject("Msxml3.XMLHTTP");
        } catch (e) {
            console.error(e);
        }
        try {
            return new ActiveXObject("Msxml2.XMLHTTP.6.0");
        } catch (e) {
            console.error(e);
        }
        try {
            return new ActiveXObject("Msxml2.XMLHTTP.3.0");
        } catch (e) {
            console.error(e);
        }
        try {
            return new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            console.error(e);
        }
        try {
            return new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {
            console.error(e);
        }
        throw "The browser does not support HTTP request";
    },
};