AUC Philologica (Acta Universitatis Carolinae Philologica) is an academic journal published by Charles University. It publishes scholarly articles in a large number of disciplines (English, German, Greek and Latin, Oriental, Romance and Slavonic studies, as well as in phonetics and translation studies), both on linguistic and on literary and cultural topics. Apart from articles it publishes reviews of new academic books or special issues of academic journals.
The journal is indexed in CEEOL, DOAJ, EBSCO, and ERIH PLUS.
AUC PHILOLOGICA, Vol 2022 No 1 (2022), 97–113
Description of F0 contours with Legendre polynomials
Michaela Svatošová, Jan Volín
DOI: https://doi.org/10.14712/24646830.2022.31
published online: 17. 01. 2023
abstract
Phonetic research has developed both impressionistic and more objective means of describing the basic units of intonation. The quantification involved in the approaches based on acoustic measurements provides more detail and it is a necessary prerequisite for the comparability and replicability of the results of different studies. In addition to having these characteristics, a proper description of intonation should be comprehensible and meaningful. This article presents a method for describing melodic contours using Legendre polynomials, which yields a few coefficients that capture the basic properties of the analysed contour (e.g. level or slope). This approach thus connects objectivity and quantitative precision with common linguistic concepts. The article also proposes the use of Legendre polynomials for the description of traditionally recognized Czech melodemes through the analysis of schemes reported in the literature. Further research on real material could verify the validity of these categories and the usefulness of the method itself.
keywords: intonation; fundamental frequency; Legendre polynomials; polynomial modelling
references (18)
1. Andruski, J. E., & Costello, J. (2004). Using polynomial equations to model pitch contour shape in lexical tones: An example from Green Mong. Journal of the International Phonetic Association, 34(2), 125-140. CrossRef
2. Auguie, B. (2017). gridExtra: Miscellaneous Functions for 'Grid' Graphics. https://CRAN.R-project.org/package=gridExtra
3. Boersma, P., & Weenink, D. (2022). Praat: Doing phonetics by computer (6.2.07). https://www.praat.org/
4. Bořil, T., & Skarnitzl, R. (2016). Tools rPraat and mPraat. In P. Sojka, A. Horák, I. Kopeček, & K. Pala (Eds.), Text, Speech, and Dialogue (pp. 367-374). Springer International Publishing. CrossRef
5. Daneš, F. (1957). Intonace a věta ve spisovné češtině. Nakladatelství ČSAV.
6. de Ruiter, L. E. (2011). Polynomial Modeling of Child and Adult Intonation in German Spontaneous Speech. Language & Speech, 54(2), 199-223. CrossRef
7. Fujisaki, H. (1983). Dynamic Characteristics of Voice Fundamental Frequency in Speech and Singing. In P. F. MacNeilage (Ed.), The Production of Speech (pp. 39-55). Springer. CrossRef
8. Grabe, E., Kochanski, G., & Coleman, J. (2007). Connecting Intonation Labels to Mathematical Descriptions of Fundamental Frequency. Language & Speech, 50(3), 281-310. CrossRef
9. Hermes, D. J. (2006). Stylization of Pitch Contours. In S. Sudhoff, D. Lenertova, R. Meyer, S. Pappert, P. Augurzky, I. Mleinek, N. Richter, & J. Schließer (Eds.), Methods in Empirical Prosody Research. DE GRUYTER. CrossRef
10. Hirst, D., Di Cristo, A., & Espesser, R. (2000). Levels of Representation and Levels of Analysis for the Description of Intonation Systems. In M. Horne (Ed.), Prosody: Theory and Experiment (Vol. 14, pp. 51-87). Springer Netherlands. CrossRef
11. Matura, M., & Jůzová, M. (2018). Correction of Formal Prosodic Structures in Czech Corpora Using Legendre Polynomials. In A. Karpov, O. Jokisch, & R. Potapova (Eds.), Speech and Computer (pp. 387-397). Springer International Publishing. CrossRef
12. Palková, Z. (1994). Fonetika a fonologie češtiny: S obecným úvodem do problematiky oboru (1. vydání). Karolinum.
13. R Core Team. (2022). R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing. https://www.R-project.org/
14. 't Hart, J., Collier, R., & Cohen, A. (1990). A Perceptual Study of Intonation: An Experimental-Phonetic Approach to Speech Melody. Cambridge University Press. CrossRef
15. Taylor, P. (1994). The rise/fall/connection model of intonation. Speech Communication, 15(1-2), 169-186. CrossRef
16. Volín, J., & Bořil, T. (2014). General and speaker-specific properties of F0 contours in short utterances. Acta Universitatis Carolinae - Philologica, 9-19.
17. Volín, J., Tykalová, T., & Bořil, T. (2017). Stability of Prosodic Characteristics Across Age and Gender Groups. Interspeech 2017, 3902-3906. CrossRef
18. Wickham, H., Averick, M., Bryan, J., Chang, W., McGowan, L. D., François, R., Grolemund, G., Hayes, A., Henry, L., Hester, J., Kuhn, M., Pedersen, T. L., Miller, E., Bache, S. M., Müller, K., Ooms, J., Robinson, D., Seidel, D. P., Spinu, V., … Yutani, H. (2019). Welcome to the Tidyverse. Journal of Open Source Software, 4(43), 1686-1691. CrossRef
Description of F0 contours with Legendre polynomials is licensed under a Creative Commons Attribution 4.0 International License.
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ISSN: 0567-8269
E-ISSN: 2464-6830
