This repository contains materials for the workshop "Analysing contours in phonetic data: Dynamic analysis hands-on workshop using R". 2-3 April, 2025, University of Milan.
Here is the event URL: https://site.unibo.it/akid/en/agenda/analysing-contours-in-phonetic-data-dynamic-analysis-hands-on-workshop-using-r
The workshop materials include:
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data folder: containing data sets used in the workshop
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HTML documents: the main workshop materials detailing analysis workflow
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Rmd documents: R Markdown documents knitted to create HTML documents
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image folder: some png files included in the document
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ultrasound folder: data set for the ultrasound workshop on Day 3 (optional)
The main objective of the workshop is to compare static and dynamic analysis methods of spectral data and discuss how these methods can be applied for the workshop participant's own research. Specific methods to be covered include:
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Day 1 Session 1: Principal Component Analysis (PCA)
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Day 1 Session 2: Functional Principal Component Analysis (FPCA)
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Day 2 Session 1: Linear Mixed-Effect Models (LMEs)
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Day 2 Session 2: Generalised Additive Mixed-Effect Models (GAMMs)
The workshop is contexualised in my own research and will utilise existing data sets from my publication:
Nagamine, T. (2024). Formant dynamics in second language speech: Japanese speakers’ production of English liquids. The Journal of the Acoustical Society of America, 155(1), 479–495. https://doi.org/10.1121/10.0024351
Here is the URL for the online supplementary materials deposited on the following OSF repository: https://osf.io/2phx5/
Some members of the audience will continue onto Day 3 for a brief workshop on ultrasound tongue imaging. This repository contains some materials for this -- see the day 3 HTML/Rmd documents.
The aim of the ultrasound workshop is to casually discuss ultrasound data collection/analysis methods. We may not be able to discuss the workshop materials much, but I've prapared a document containing an extension of my own research (see below for citation) in which I have analysed the dynamic changes in tongue shape using FPCA and GAMMs.
Nagamine, T. (2023). Dynamic tongue movements in L1 Japanese and L2 English liquids. In R. Skarnitzl & J. Volín (Eds.), Proceedings of the 20th International Congress of Phonetic Sciences (pp. 2442–2446). Guarant International. https://discovery.ucl.ac.uk/id/eprint/10198625
The workshop is organised mainly by Dr Yuka Naito and Professor Chiara Meluzzi and by the AKiD project: Acoustic and Kinematic Characteristics of Speech in Dementia, a joint research project spanning the University of Bologna, IRCSS Istituto delle Scienze Neurologiche di Bologna, and University of Milan.