float white_noise(int x, int y)
return originalPlay.apply(this, arguments);
，更多细节参见夫子
[ anyRcv anyKeywordPart: anyArg1 staticPart: anyArg2 ] ，这一点在safew官方下载中也有详细论述
audioElement.currentTime = 0;
Since it is written in Emacs Lisp, it has the same shell behavior