GetTokenizedTtsUrl.js

/**
 * Get a tokenized(!) request URL for a Google Translate tts audio file; i.e.:
 *    https://translate.google.com/translate_tts?q=hello%20world&tl=en&tk=159027.275675
 *    (URL shortened for better readability.)
 *
 * @author Stephan Schmitz <[email protected]>
 * @copyright: Google Inc.
 * @param urldecodedString {string} The string to be spoken in the audio file.
 * @param hl {string} Optional two-letter country code for the output language. Default: English.
 * @return {string} The fully-qualified request URL to the audio file (Content-type: audio/mpeg).
 */
var GetTokenizedTtsUrl = function(urldecodedString, hl) {
    "use strict";

    hl = hl ? hl : "en"; // default output language (two-letter ISO code)

    var host = "https://translate.google.com",
        queryStringBegin = "/translate_tts?ie=UTF-8&q=" +
          encodeURIComponent(urldecodedString) + "&tl=" +
          hl + "&total=1&idx=0&textlen=" + urldecodedString.length,
        queryStringEnd = "&client=t&prev=input",
        salt = "416234.2030088909", d; // window["TKK"]

    var fn = function(a) {
            return function() {
                return a;
            };
        },
        hash = function(a, c) {
            for (var d = 0; d < c.length - 2; d += 3) {
                var b = c.charAt(d + 2),
                    b = "a" <= b ? b.charCodeAt(0) - 87 : Number(b),
                    b = "+" == c.charAt(d + 1) ? a >>> b : a << b;
                a = "+" == c.charAt(d) ? a + b & 4294967295 : a ^ b;
            }
            return a;
        },
        tokenParamString = function(a) {
            var c = salt;
            var b = fn(String.fromCharCode(116));
            d = fn(String.fromCharCode(107));
            b = [b(), b()];
            b[1] = d();
            d = "&" + b.join("") + "=";
            b = c.split(".");
            c = Number(b[0]) || 0;
            for (var g = [], f = 0, h = 0; h < a.length; h++) {
                var e = a.charCodeAt(h);
                128 > e ? g[f++] = e : (2048 > e ? g[f++] = e >> 6 | 192 :
                    (55296 == (e & 64512) && h + 1 < a.length && 56320 ==
                        (a.charCodeAt(h + 1) & 64512) ? (e = 65536 + ((
                                e & 1023) << 10) + (a.charCodeAt(++h) &
                                1023), g[f++] = e >> 18 | 240, g[f++] =
                            e >> 12 & 63 | 128) : g[f++] = e >> 12 |
                        224, g[f++] = e >> 6 & 63 | 128), g[f++] = e &
                    63 | 128);
            }
            a = c;
            for (f = 0; f < g.length; f++) {
                a += g[f], a = hash(a, "+-a^+6");
            }
            a = hash(a, "+-3^+b+-f");
            a ^= Number(b[1]) || 0;
            0 > a && (a = (a & 2147483647) + 2147483648);
            a %= 1E6;
            return d + (a.toString() + "." + (a ^ c));
        }(urldecodedString);

    return host + queryStringBegin + tokenParamString + queryStringEnd;
};

// Example usage
var ttsUrl = GetTokenizedTtsUrl("Hallo, wie geht's?", "de");
console.log(ttsUrl);
  

GetTokenizedTtsUrl.min.js

/**
 * @param l {string} The string to be spoken in the audio file.
 * @param k {string} Optional two-letter country code for the output language. Default: English.
 * @return {string} The fully-qualified request URL to the audio file (Content-type: audio/mpeg).
 */
var GetTokenizedTtsUrl=function(l,k){k=k?k:"en";var p="/translate_tts?ie=UTF-8&q="+encodeURIComponent(l)+"&tl="+k+"&total=1&idx=0&textlen="+l.length,m=function(a){return function(){return a}},n=function(a,g){for(var c=0;c<g.length-2;c+=3){var b=g.charAt(c+2),b="a"<=b?b.charCodeAt(0)-87:Number(b),b="+"==g.charAt(c+1)?a>>>b:a<<b;a="+"==g.charAt(c)?a+b&4294967295:a^b}return a},q=function(a){var g="416234.2030088909",c=m(String.fromCharCode(116));d=m(String.fromCharCode(107));c=[c(),c()];c[1]=d();d="&"+
c.join("")+"=";for(var c=g.split("."),g=Number(c[0])||0,b=[],f=0,h=0;h<a.length;h++){var e=a.charCodeAt(h);128>e?b[f++]=e:(2048>e?b[f++]=e>>6|192:(55296==(e&64512)&&h+1<a.length&&56320==(a.charCodeAt(h+1)&64512)?(e=65536+((e&1023)<<10)+(a.charCodeAt(++h)&1023),b[f++]=e>>18|240,b[f++]=e>>12&63|128):b[f++]=e>>12|224,b[f++]=e>>6&63|128),b[f++]=e&63|128)}a=g;for(f=0;f<b.length;f++)a+=b[f],a=n(a,"+-a^+6");a=n(a,"+-3^+b+-f");a^=Number(c[1])||0;0>a&&(a=(a&2147483647)+2147483648);a%=1E6;return d+(a.toString()+
"."+(a^g))}(l);return"https://translate.google.com"+p+q+"&client=t&prev=input"};

// Example usage
console.log(GetTokenizedTtsUrl("Get a tokenized request URL for a Google Translate tts audio file."));

var charSequences = [
        "grün",
        "rot",
        "gelb",
        "blau",
        "schwarz",
        "weiss",
		"Das hat 14.99 Euro gekostet"
    ],
	ttsUrls = [];

for (i in charSequences) {
	var ttsUrl = GetTokenizedTtsUrl(charSequences[i], "de");
	if (!!ttsUrl && ttsUrl.length) {
		ttsUrls.push(ttsUrl);
		console.log(ttsUrl);
    }
}

console.dir(ttsUrls);