8. An apparatus for producing supplemental information for audio signature data, the apparatus including: a processor to: obtain the audio signature data of a first time period, the audio signature data including data relating to at least one of time or frequency components representing a first characteristic of media; obtain first semantic audio signature data for the first time period, the first semantic audio signature data being a measure of generalized information representing characteristics of the media; and memory to store the audio signature data of the first time period in association with a second time period when the processor determines that second semantic audio signature data for the second time period substantially matches the first semantic audio signature data for the first time period.
8. An apparatus for producing supplemental information for audio signature data, the apparatus including: a processor to: obtain the audio signature data of a first time period, the audio signature data including data relating to at least one of time or frequency components representing a first characteristic of media; obtain first semantic audio signature data for the first time period, the first semantic audio signature data being a measure of generalized information representing characteristics of the media; and memory to store the audio signature data of the first time period in association with a second time period when the processor determines that second semantic audio signature data for the second time period substantially matches the first semantic audio signature data for the first time period. 14. The apparatus of claim 8 , wherein the first semantic audio signature data is generated by transforming an audio signal of the media from a time domain to a frequency domain.