Thanks for answering, but as i mentioned the problem happen in any Audio format, I try a lot of .wav files, but the problem still the same.
I think there is a technical problem, because the first time i ran AE, a message appear telling me about a problem in Audio recording, but i thought i don’t need any recording service at the moment, so that why i check on “Don’t show me this message again”.
now i have problem with any audio file, also some kind of movies, plus when i try to see my ram render of my video file, there is no sound go out!
I’m sure there is solution for this problem, but i still don’t find who solve it for me.