可以調教畫面和聲音配合? 就是用 -s, -jq, -i 等等?  真的修正了嗎?

yes~~ but i takes me some time to really understand how to do that.
actually it divides the file into sound and pictures and then re-joint them by delaying or accelerating  to the time you set so that the sound can match with the picture.

the best way to understand is to try it by yourself. any real file can be done with it. you will spot the difference after the change~!