Using entropy to determine vowel spaces
DOI:
https://doi.org/10.36505/ExLing-2022/13/0005/000547Keywords:
Vowel space, Entropy, Correlation, FormantAbstract
Vowel spaces are often illustrated with the first and second formants plotted against each other on X-Y plots. The numerical values of vowel F1, F2, and F3 were evaluated using Pearson correlations, and results often showed inconsistencies, indicating that some F1-F2 plots might not provide the best vowel space depiction. The same formant values were examined using conditional entropy methodology, and determinations were made regarding which formants should be the independent X variable and which formants should be the dependent Y variable for plotting. This research describes the examination of relationships between formants to determine optimal, more accurate vowel space plots.
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