Temporal audio segmentation using MPEG-7 descriptors

Jens Wellhausen; Holger Crysandt

doi:10.1117/12.476256

10 January 2003 Temporal audio segmentation using MPEG-7 descriptors

Jens Wellhausen, Holger Crysandt

Proceedings Volume 5021, Storage and Retrieval for Media Databases 2003; (2003) https://doi.org/10.1117/12.476256
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

In this paper we present an audio segmentation technique by searching similar sections of a song. The search is performed on MPEG-7 low-level audio feature descriptors as a growing source of multimedia meta data. These descriptors are available every 10 ms of audio data. For each block the similarity to each other block is determined. The result of this operation is a matrix which contains off-diagonal stripes representing similar regions. At that point some postprocessing is necessary due to a very disturbed structure of the similarity matrix. Using the a-priori knowledge that we search off-diagonal stripes which must represent several seconds of audio data we implemented a filter to enhance the structure of the similarity matrix. The last step is to extract the off-diagonal stripes and match them into the time domain of the audio data.

Citation Download Citation

Jens Wellhausen and Holger Crysandt "Temporal audio segmentation using MPEG-7 descriptors", Proc. SPIE 5021, Storage and Retrieval for Media Databases 2003, (10 January 2003); https://doi.org/10.1117/12.476256

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