Joshua Wilson Black
Joshua Wilson Black
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vowels
Topical structure, amplitude variation, and F1 in single-speaker narrative recordings
This presentation briefly runs through our results on the link between amplitude variation and F1 before turning to the role of amplitude in marking topical subsections of a single-speaker narrative recording.
Dec 8, 2022 1:30 PM — 1:40 PM
University of Otago
Joshua Wilson Black
,
Jennifer Hay
,
Lynn Clark
,
James Brand
Project
Slides
Model Check and Significance Testing for Vowel Space GAMMs
Table of Contents Introduction Model Fit (Again) Using gam.check Significance Testing P-Values for By-Factor Smooths from the Model Summary Plotting Significance of By-Factor Smooths in Vowel Space P-Values for Difference Smooths Pointwise Significance of Difference Smooths Conclusion Introduction In a previous post, I set out a workflow for fitting and visualising generalised additive mixed models for F1 and F2 of a series of vowels and using these to visualise change over an entire vowel space.
Last updated on Aug 30, 2022
29 min read
PCA for Sociolingistics: A Tutorial
Introduction to PCA for sociolinguists.
Jul 26, 2022 10:30 AM — 11:00 AM
Te Whare Wānanga o Waitaha
Joshua Wilson Black
Project
Slides
A 3D PCA Visualisation with Plotly
Attempts to produce an illustrative example of PCA using formant data and Plotly via R.
Last updated on Jul 19, 2022
7 min read
The overlooked effect of amplitude on within-speaker vowel variation
PCA analysis of the QuakeBox Corpus reveals a larger-than-expected influence of amplitude on speaker vowel spaces.
Jul 12, 2022 9:30 AM — 10:00 AM
Griffith University
Joshua Wilson Black
,
Jennifer Hay
,
Lynn Clark
,
James Brand
Project
Slides
Visualising Vowel Space Change with GAMs
This tutorial is now available at LingMethodsHub. If you use the tutorial, please cite the version there. Introduction Multiple recent projects at NZILBB have used Generalised Mixed Models (GAMMs) to investigate changes in vowel spaces both across multiples speakers and within single speakers.
Last updated on Jun 29, 2022
17 min read
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