Audio descriptors and descriptor schemes in the context of MPEG-7

Herrera Boyer, Perfecto, 1964-; Serra, Xavier; Peeters, Geoffroy

Audio descriptors and descriptor schemes in the context of MPEG-7

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Citation

Herrera P, Serra X, Peeters G. Audio descriptors and descriptor schemes in the context of MPEG-7. In: Proceedings of the 1999 International Computer Music Conference, ICMC; 1999 Oct 22-27; Beijing, China. [Michigan]: Michigan Publishing; 1999. p. 581-4.

Abstract

Sound content description is one of the aims of the MPEG-7 initiative. Although MPEG-7 focuses on indexing and retrieval of audio, there are other sound content-based processing applications waiting to be developed once we have a robust set of descriptors and structures for putting them into relation and for expressing semantic concerns about sound. Spectral Modeling techniques provide a valuable framework for extracting and organizing sound content descriptions. All our descriptors can be considered low- or mid-level, for which we have devised automatic extraction procedures. In this paper we present the basic descriptors and introduce a scheme for organizing them (a so called "Descriptor Scheme"). We do not cover the high level description of music (musical forms and styles, roles of characters in a movie, etc.) which is also relevant in MPEG-7.