Metadata for Audio 25th International AES Conference 17th to 19th June 2004 London UK
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Metadata for Audio

Paper T4-3

Tools for Content-Based Retrieval and Transformation of Audio Using MPEG-7: The SPOff and the MDTools

Emilia Gómez, Oscar Celma, Emilia Gómez, Fabien Gouyon, Perfecto Herrera, Jordi Janer, David García
University Pompeu Fabra, Barcelona, Spain

In this workshop we will demonstrate three applications for content-based retrieval and transformations of audio recordings. They illustrate diverse aspects of a common framework for music content description and structuring implemented using the MPEG-7 standard. MPEG-7 descriptions can be generated either manually or automatically and are stored in an XML database. Retrieval services are implemented in the database. A set of musical transformations are defined directly at the level of musically meaningful MPEG-7 descriptors and are automatically mapped onto low-level audio signal transformations. Topics included in the presentation are: (1) Description generation procedure, manual annotation of editorial description: the MDTools, automatic description of audio recordings, the SPOffline; (2) Retrieval functionalities, local retrieval: SPOffline, remote retrieval: web-based retrieval; and (3) Transformation utilities: the SPOffline.

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