[Из песочницы] Получение ссылок на аудио без VKApi
var id = 0; //Ваш userid
var n = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN0PQRSTUVWXYZO123456789+/=",
i = {
v: function(e) {
return e.split("").reverse().join("")
},
r: function(e, t) {
e = e.split("");
for (var i, o = n + n, s = e.length; s--;) i = o.indexOf(e[s]), ~i && (e[s] = o.substr(i - t, 1));
return e.join("")
},
s: function(e, t) {
var n = e.length;
if (n) {
var i = r(e, t),
o = 0;
for (e = e.split(""); ++o < n;) e[o] = e.splice(i[n - 1 - o], 1, e[o])[0];
e = e.join("")
}
return e
},
i: function(e, t) {
return i.s(e, t ^ id)
},
x: function(e, t) {
var n = [];
return t = t.charCodeAt(0), each(e.split(""), function(e, i) {
n.push(String.fromCharCode(i.charCodeAt(0) ^ t))
}), n.join("")
}
};
function o() {
return window.wbopen && ~(window.open + "").indexOf("wbopen")
}
function s(e) {
if (!o() && ~e.indexOf("audio_api_unavailable")) {
var t = e.split("?extra=")[1].split("#"),
n = "" === t[1] ? "" : a(t[1]);
if (t = a(t[0]), "string" != typeof n || !t) return e;
n = n ? n.split(String.fromCharCode(9)) : [];
for (var s, r, l = n.length; l--;) {
if (r = n[l].split(String.fromCharCode(11)), s = r.splice(0, 1, t)[0], !i[s]) return e;
t = i[s].apply(null, r)
}
if (t && "http" === t.substr(0, 4)) return t
}
return e
}
function a(e) {
if (!e || e.length % 4 == 1) return !1;
for (var t, i, o = 0, s = 0, a = ""; i = e.charAt(s++);) i = n.indexOf(i), ~i && (t = o % 4 ? 64 * t + i : i, o++ % 4) && (a += String.fromCharCode(255 & t >> (-2 * o & 6)));
return a
}
function r(e, t) {
var n = e.length,
i = [];
if (n) {
var o = n;
for (t = Math.abs(t); o--;) t = (n * (o + 1) ^ t + o) % n, i[o] = t
}
return i
}