The use case is playback without pitch change: mplayer -speed 1.5 -af ladspa=tap_pitch:tap_pitch:0:-33:-90:0 foo.avi
more info from: http://mark.santaniello.net/archives/260 -- LADSPA support is not compiled in mplayer by default https://launchpad.net/bugs/67400 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs