ViktorNova · September 28, 2017 06:01
diff --git a/ffmpeg_stuff.sh b/ffmpeg_stuff.sh
 # Boost volume of all videos in directory

 # This ONLY works in BASH. (maybe others, but it does NOT work in Fish shell)
 # This is meant to be done by first moving all the videos into a subdirectory
 # Then the output files with boosted volume are dumped one directory up
 for i in *.avi; do ffmpeg -i $i -vcodec copy -af "volume=10dB" ../$i; done

 # ____________________________________________________________________________________

 # Combine video from first video with audio from anthe second video.
 # Youtube Karaoke times!
 # To add a time offset to either one, adjust "-itoffset" 
 ffmpeg -itsoffset 00:00:00.000 -i lyrics.mp4  -itsoffset 00:00:00.000 -i instrumental.mp4 -c copy -map 0:0 -map 1:1 -shortest KaraokeVideo.mp4
	# Boost volume of all videos in directory

	# This ONLY works in BASH. (maybe others, but it does NOT work in Fish shell)
	# This is meant to be done by first moving all the videos into a subdirectory
	# Then the output files with boosted volume are dumped one directory up
	for i in *.avi; do ffmpeg -i $i -vcodec copy -af "volume=10dB" ../$i; done

	# ____________________________________________________________________________________

	# Combine video from first video with audio from anthe second video.
	# Youtube Karaoke times!
	# To add a time offset to either one, adjust "-itoffset"
	ffmpeg -itsoffset 00:00:00.000 -i lyrics.mp4 -itsoffset 00:00:00.000 -i instrumental.mp4 -c copy -map 0:0 -map 1:1 -shortest KaraokeVideo.mp4