Subber is a subtitle resync tool
$ npm install lionelB/subber
$ subber --help
Usage: subber [options] <file ...>
Options:
-h, --help output usage information
-V, --version output the version number
-f, --forward [delay] forward delay value in ms
-r, --rewind [delay] rewind delay value in ms
-o, --output [name] the output filename