Automatically synchronize SRT subtitles with audio.
Requires ffmpeg (sudo apt-get install ffmepg):
autosubsync [input movie] [input subtitles] [output subs] # for example autosubsync plan-9-from-outer-space.avi \ plan-9-out-of-sync-subs.srt \ plan-9-subtitles-synced.srt
See autosubsync --help for more details.