METHODS AND APPARATUS FOR CREATION OF A REFERENCE TIME INDEX FOR AUDIO/VIDEO PROGRAMMING

A method for adjusting actual timing data associated with closed captioning data for audio/video programming is provided. The method receives a first set of closed captioning data and a first set of actual timing data associated with the first set of closed captioning data, for the audio/video programming; obtains theoretical timing data for the first set of closed captioning data; calculates a timing offset between the first set of actual timing data and the theoretical timing data; and adjusts a second set of actual timing data, based on the calculated timing offset.