Rick And Morty S03e05 Ffmpeg -

ffmpeg -i "S03E05.mkv" -map 0:a:1 -c copy "commentary.aac" (soft subs only):

ffmpeg -i "input.mkv" -c:v copy -af "aformat=channel_layouts=5.1,pan=stereo|FL=FC+0.707*FL+0.707*BL|FR=FC+0.707*FR+0.707*BR" -c:a aac "output.mp4" Or simpler (ffmpeg default downmix, good enough):

PSA / Guide: How to properly remux or encode Rick and Morty S03E05 (“The Whirly Dirly Conspiracy”) with ffmpeg