How to detect auto audio flash on the page?

Is is possible to detect within JavaScript of Flash i开发者_开发百科f there is auto audio another flash object (mostly ad) on the page?

I think yes, because youtube player stop all other movies and audios (even if those players are on other pages) and then starts playing the movie...
Search on youtube player using swf decompiler...

No, this is not possible. Even if it were, ads usually come from other servers, so same origin policy would prohibit accessing those flash files.