Score-Informed Syllable Segmentation for Jingju a Cappella Singing Voice with Mel-Frequency Intensity Profiles

TitleScore-Informed Syllable Segmentation for Jingju a Cappella Singing Voice with Mel-Frequency Intensity Profiles
Publication TypeConference Paper
Year of PublicationIn Press
Conference NameInternational Workshop on Folk Music Analysis
AuthorsGong, R., Obin N., Dzhambazov G., & Serra X.
Conference Start Date14/06/2017
Conference LocationMalaga, Spain
Abstract

This paper introduces a new unsupervised and score-informed method for the segmentation of singing voice into syllables. The main idea of the proposed method is to detect the syllable onset on a probability density function by incorporating a priori syllable duration derived from the score. Firstly, intensity profiles are used to exploit the characteristics of singing voice depending on the Mel-frequency regions. Then, the syllable onset probability density function is obtained by selecting candidates over the intensity profiles and weighted for the purpose of emphasizing the onset regions. Finally, the syllable duration distribution shaped by the score is incorporated into Viterbi decoding to determine the optimal sequence of onset time positions. The proposed method outperforms conventional methods for the segmentation of syllable on a jingju (also known as Peking or Beijing opera) a cappella dataset. An analysis is conducted on precision errors to provide direction for future improvement.

preprint/postprint documenthttps://doi.org/10.5281/zenodo.556820
Additional material: 
Jingju a cappella singing dataset http://doi.org/10.5281/zenodo.345490
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