Relatively little research has been carried out in this area so far. The potential presented by the availability of a large volume of digitized audio/video data was first outlined in [LB87]. The need to browse such data efficiently will prove essential if we are to survive the age of the [tex2html_wrap5920] television channels!
Approaches used so far are characterized by the use of word spotting to identify context from the digitized audio data and using such contextual information to access portions of interest from the audio/video data stream. On the global Internet, the availability of Internet Talk Radio and other sources of large audio data provide an excellent research test-bed.