Audiovisual content in the form of video clip files, streamed or broadcasted may further contain subtitles. Such subtitles are provided with timing information so that each subtitle should be displayed synchronously with the spoken words. However, at times such synchronization with the audio portion of the audiovisual content has a timing offset which when above a predetermined threshold is bothersome. The system and method determine time spans in which a human speaks and attempts to synchronize those time spans with the subtitle content. Indication is provided when an incurable synchronization exists as well as the case where the subtitles and audio are well synchronized. It further is able to determine, when an offset exists, the type of offset (constant or dynamic) and providing the necessary adjustment information so that the timing used in conjunction with the subtitles timing provided may be corrected and synchronization deficiency resolved.