You could try below BAT file
Code:
setlocal
REM Where to Find ffmpeg
set FFMPEG="C:\BIN\ffmpeg.exe"
REM Where to get input file, No terminating Backslash, "." = current directory
set INDIR="."
REM Where to place output file, No terminating Backslash.
set OUTDIR="D:"
FOR %%A IN (*.wmv *.mpg *.avi *.flv *.mov *.mp4 *.m4v *.RAM *.RM *.mkv *.TS *.ogv) DO (
%FFMPEG% -i "%INDIR%\%%A" -vcodec utvideo -acodec pcm_s16le "%OUTDIR%\%%~nxA.AVI"
)
Pause
It dont like Spaces in filenames.
REM lines are comments
Output UT_Video video and PCM audio.
Perhaps something like this afterwards in avs Script
Code:
AssumeFPS(24000,1001,True)
ReSampleAudio(44100) # or 48000