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Beat tracking using group delay based onset detection
University of Crete.ORCID iD: 0000-0003-1679-6018
2008 (English)In: Proceedings of ISMIR - International Conference on Music Information Retrieval, ISMIR , 2008, 653-658 p.Conference paper (Refereed)
Abstract [en]

This paper introduces a novel approach to estimate onsets in musical signals based on the phase spectrum and specifically using the average of the group delay function. A frame-by-frame analysis of a music signal provides the evolution of group delay over time, referred to as phase slope function. Onsets are then detected simply by locating the positive zero-crossings of the phase slope function. The proposed approach is compared to an amplitude-based onset detection approach in the framework of a state-of-the-art system for beat tracking. On a data set of music with less percussive content, the beat tracking accuracy achieved by the system is improved by 82% when the suggested phase-based onset detection approach is used instead of the amplitudebased approach, while on a set of music with stronger percussive characteristics both onset detection approaches provide comparable results of accuracy.

Place, publisher, year, edition, pages
ISMIR , 2008. 653-658 p.
Keyword [en]
Beat tracking, group delay
National Category
Media Engineering
Research subject
Computer Science; Media Technology; Speech and Music Communication
URN: urn:nbn:se:kth:diva-193763OAI: diva2:1040355
ISMIR - International Conference on Music Information Retrieval

QC 20161031

Available from: 2016-10-27 Created: 2016-10-10 Last updated: 2016-11-11Bibliographically approved

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Holzapfel, André
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