ffmpeg Windows Powershell - Copy Video and Re-Encode DTS audio to two channel AAC codec

ffmpeg_reencode_5.1_audio_to_stereo.ps1

# Change 'F:\ffmpeg' to the path where your FFMPEG executable is
# Usefull on a cheap TV with USB that can't handle many audio codec versions.
# Pre-requisite: Download ffmpeg.exe (static version) and put it somewhere in your windows PATH variable.
Get-ChildItem -Recurse -File -Include *.mkv | Foreach  { #*.mp4,*.mov,*.avi,*.mkv | Foreach  {
	$newname = $_.fullname.subString(0, $_.fullname.Length-4)  + "_conv.mkv"; 
	ffmpeg.exe -i $_.fullname -c:v copy -c:a mp3 -ac 2 -b:a 256k -y $newname; 
	echo "Saving as: $($newname)";
}