mencoder how to mute audio (volume) Posted on November 30, 2010 by rogerdpack mencoder play_this_muted -o to_here.ts -ovc copy -af volume=-200 -oac lavc (NB that “-af volume” does not work at all if you specify “-oac xxx” ).
more hints/clues: Code: mplayer dvd://… -dumpaudio -dumpfile filename.ac3 might have a clue (dump it, zero it out)…
http://superuser.com/questions/155008/how-to-add-image-to-the-end-of-video-file-using-ffmpeg-or-mencoder
“-noaudio” works too, except you can’t later merge those files with those that do have audio, without adding “muted” audio back in or what not…
mencoder from_here.avi -ovc copy -lavcopts acodec=ac3 -af volume=-200 -oac lavc -ss 1 -endpos 0.999 -o to_here.avi.1.avi if you want dvd style audio
more hints/clues:
Code:
mplayer dvd://… -dumpaudio -dumpfile filename.ac3
might have a clue (dump it, zero it out)…
http://superuser.com/questions/155008/how-to-add-image-to-the-end-of-video-file-using-ffmpeg-or-mencoder
http://linux.die.net/man/1/mencoder lists the options for the “-af volume” command
“-noaudio” works too, except you can’t later merge those files with those that do have audio, without adding “muted” audio back in or what not…
mencoder from_here.avi -ovc copy -lavcopts acodec=ac3 -af volume=-200 -oac lavc -ss 1 -endpos 0.999 -o to_here.avi.1.avi
if you want dvd style audio