...Sure, you could amend the timings with a notepad but when you're dealing with hundreds or even thousands of lines of subtitles you will soon realize it will take you some backbreaking hours to just complete one movie.
So I wrote this application to solve the problem. No fancy stuffs, straight forward subtitle timing offset.
A collection of scripts and programs to automatically annotate video/audio for subtitles. Basically relies on a MARSYAS (Music Analysis, Retrieval and Synthesis for Audio Signals) plug-in for detecting human voice in polyphonic recordings.