@ECHO OFF
TITLE "Output 5.1 and Stereo 24 Bit WAV"
if [%1]==[] goto :eof
set Destination=%~d1\%~p1
cd /d %Destination%
md AAC
cd /d "%~dp0"
:loop
ffmpeg -i "%~1" -filter_complex "[0:0][0:1][0:2][0:3][0:4][0:5] amerge=inputs=6[51mix]" -c:a pcm_s24le -filter_complex "[0:6][0:7] amerge=inputs=2[20mix]" -c:a pcm_s24le -map [51mix] "%Destination%\AAC\%~n1"_5.1mix.wav -map [20mix] "%Destination%\AAC\%~n1"_2.0mix.wav
shift
if not [%1]==[] goto loop