Note-accurate audio segmentation based on MPEG-7

Jens Wellhausen

doi:10.1117/12.526763

18 December 2003 Note-accurate audio segmentation based on MPEG-7

Jens Wellhausen

Proceedings Volume 5307, Storage and Retrieval Methods and Applications for Multimedia 2004; (2003) https://doi.org/10.1117/12.526763
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

Segmenting audio data into the smallest musical components is the basis for many further meta data extraction algorithms. For example, an automatic music transcription system needs to know where the exact boundaries of each tone are. In this paper a note accurate audio segmentation algorithm based on MPEG-7 low level descriptors is introduced. For a reliable detection of different notes, both features in the time and the frequency domain are used. Because of this, polyphonic instrument mixes and even melodies characterized by human voices can be examined with this alogrithm. For testing and verification of the note accurate segmentation, a simple music transcription system was implemented. The dominant frequency within each segment is used to build a MIDI file representing the processed audio data.

Citation Download Citation

Jens Wellhausen "Note-accurate audio segmentation based on MPEG-7", Proc. SPIE 5307, Storage and Retrieval Methods and Applications for Multimedia 2004, (18 December 2003); https://doi.org/10.1117/12.526763

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