This profile requires ffmpeg 6.0 or greater. It also requires a 40 series nvidia gpu Please test it and post back with your results
[av1 nvenc MP4]
Description=av1 in MP4 (av1/AAC) conversion. Uses nvenc.
order=ffmpeg
ffmpeg-general=-threads 0
ffmpeg-video=-ss 0 -vf yadif=0:-1:1,hqdn3d -vcodec av1_nvenc -preset medium -crf 26 -map 0:v -sn
ffmpeg-audio=-acodec aac -ab 128k -map 0:a
ffmpeg-audioac3=-acodec aac -ab 160k -map 0:a
ffmpeg-ext=.mp4
ffmpeg-audiodelay=skip
PreConversionCommercialRemover=true