11. The method of claim 1 further comprising receiving a media item containing the audio segment and receiving source indicia identifying a source from the plurality of sources for each of the different speech segments of the speech content in the audio segment, wherein the source indicia is used to associate the corresponding one of the plurality of sources with phonemes in the sequence of phonemes of the phonetic index.
1. A method comprising: accessing an audio segment comprising speech content from a plurality of sources, wherein different speech segments of the speech content correspond to different ones of the plurality of sources; parsing the speech content into a sequence of phonemes wherein each phoneme corresponds to a basic unit of speech of the speech content; generating a phonetic index from the sequence of phonemes; and associating a corresponding one of the plurality of sources with phonemes in the sequence of phonemes of the phonetic index such that a source associated with a given phoneme or group of phonemes in the sequence of phonemes of the phonetic index is ascertainable.