wiserain's monolog
ffmpeg -i f:\sourcefile.ext -ss 00:00:00 -to 00:00:00 -vcodec copy -acodec copy f:\destinationfile.ext 볼륨 정규화. 약간은 노가다..http://superuser.com/questions/323119/how-can-i-normalize-audio-using-ffmpeg 약간 더 설명http://jasonim.me/dev/291
