Paul Miller <listmail <at> voltar-confed.org> writes: > ffmpeg -i short.mkv -filter:a pan=1:c0=$i -ac 1 -y $i.mp3; Complete, uncut console output missing. But please decide if you want to use pan or -ac 1 since -ac 1 makes sure the dts decoder outputs mono (which cannot be changed by pan in any way). Carl Eugen