Several key challenges related to multimedia management and processing, (e.g. quality control, de-duplication, metadata tracking, content provenance analysis) require information about the processing history and relationships among content items.
Multimedia phylogeny, which can be considered as “family research” for media, aims at automatically detecting such relationships among related multimedia objects. The analysis results in trees in which nodes represent objects and edges represent their relationships, mostly operations or transformations that lead from one node to another. In the case of audio, this includes e.g. coding, transcoding, volume changes etc.
Fraunhofer IDMT's audio phylogeny analysis software is able to automatically detect the best-quality original “root” version and coding history within a set of transcoded audio duplicates.