17. A method of controlling play of an audio signal comprising: converting a specified portion of a closed caption text signal to an audio equivalent of the specified portion, the audio equivalent based on a phonetic representation of the specified text, the phonetic representation characterized by energy; comparing the energy of the audio equivalent of the specified portion of the closed caption text signal to an energy of a comparative form of an audio signal to identify a portion of the audio signal corresponding with the specified portion of the closed caption signal, the energy of the comparative form of the audio signal involving a total energy of a speech slice and energy of one or more frequency bands of the speech slice; and controlling playback of the portion of the audio signal corresponding with the specified portion of the closed caption signal.
17. A method of controlling play of an audio signal comprising: converting a specified portion of a closed caption text signal to an audio equivalent of the specified portion, the audio equivalent based on a phonetic representation of the specified text, the phonetic representation characterized by energy; comparing the energy of the audio equivalent of the specified portion of the closed caption text signal to an energy of a comparative form of an audio signal to identify a portion of the audio signal corresponding with the specified portion of the closed caption signal, the energy of the comparative form of the audio signal involving a total energy of a speech slice and energy of one or more frequency bands of the speech slice; and controlling playback of the portion of the audio signal corresponding with the specified portion of the closed caption signal. 22. The method of claim 17 further comprising time extending the phonetic representation of the specified portion of the closed caption signal to define a time extended phonetic representation.