For clarity use this profile:
ffmpeg-ext=.avi
order=ffmpeg
ffmpeg-general=-async 1 -threads 0
ffmpeg-video=-ss 3 -vcodec copy
ffmpeg-audio=-acodec mp2 -ab 192k
ffmpeg-audioac3=-acodec mp2 -ab 384K
ffmpeg-ext=.wtv
ffmpeg-audiodelay=skip
2ChannelAudio=trueffmpeg-ext=.avi