Multiple-f0 tracking based on a high-order hmm model

Wei Chen Chang, Alvin W.Y. Su, Chunghsin Yeh, Axel Roebel, Xavier Rodet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

This paper is about multiple-F0 tracking and the estimation of the number of harmonic source streams in music sound signals. A source stream is understood as generated from a note played by a musical instrument. A note is described by a hidden Markov model (HMM) having two states: the attack state and the sustain state. It is proposed to first perform the tracking of F0 candidates using a high-order hidden Markov model, based on a forward-backward dynamic programming scheme. The propagated weights are calculated in the forward tracking stage, followed by an iterative tracking of the most likely trajectories in the backward tracking stage. Then, the estimation of the underlying source streams is carried out by means of iteratively pruning the candidate trajectories in a maximum likelihood manner. The proposed system is evaluated by a specially constructed polyphonic music database. Compared with the frame-based estimation systems, the tracking mechanism improves significantly the accuracy rate.

Original languageEnglish
Title of host publicationProceedings - 11th International Conference on Digital Audio Effects, DAFx 2008
Pages379-386
Number of pages8
Publication statusPublished - 2008 Dec 1
Event11th International Conference on Digital Audio Effects, DAFx 2008 - Espoo, Finland
Duration: 2008 Sep 12008 Sep 4

Publication series

NameProceedings - 11th International Conference on Digital Audio Effects, DAFx 2008

Other

Other11th International Conference on Digital Audio Effects, DAFx 2008
CountryFinland
CityEspoo
Period08-09-0108-09-04

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All Science Journal Classification (ASJC) codes

  • Signal Processing

Cite this

Chang, W. C., Su, A. W. Y., Yeh, C., Roebel, A., & Rodet, X. (2008). Multiple-f0 tracking based on a high-order hmm model. In Proceedings - 11th International Conference on Digital Audio Effects, DAFx 2008 (pp. 379-386). (Proceedings - 11th International Conference on Digital Audio Effects, DAFx 2008).