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Automated estimation of ride cymbal swing ratios in jazz recordings

: Dittmar, C.; Pfleiderer, M.; Müller, M.

Müller, M.; Wiering, F. ; International Society for Music Information Retrieval -ISMIR-:
16th International Society for Music Information Retrieval Conference, ISMIR 2015. Proceedings : Málaga, Spain, October 26-30, 2015
Málaga, 2015
ISBN: 978-84-606-8853-2
International Society for Music Information Retrieval (ISMIR Conference) <16, 2015, Málaga>
Fraunhofer IIS ()

In this paper, we propose a new method suitable for the automatic analysis of microtiming played by drummers in jazz recordings. Specifically, we aim to estimate the drummers’ swing ratio in excerpts of jazz recordings taken from the Weimar Jazz Database. A first approach is based on automatic detection of ride cymbal (RC) onsets and evaluation of relative time intervals between them. However, small errors in the onset detection propagate considerably into the swing ratio estimates. As our main technical contribution, we propose to use the log-lag autocorrelation function (LLACF) as a mid-level representation for estimating swing ratios, circumventing the error-prone detection of RC onsets. In our experiments, the LLACF-based swing ratio estimates prove to be more reliable than the ones based on RC onset detection. Therefore, the LLACF seems to be the method of choice to process large amounts of jazz recordings. Finally, we indicate some implications of our method for microtiming studies in jazz research.