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Abstract
Corpus phonetics is enabling the comprehensive analysis of large digital speech collections. In this paper, we develop a corpus phonetics workflow that is flexible enough to be easily applied to under-documented languages. To test the capabilities of this workflow we choose a challenging vowel reduction and vowel harmony problem. In Kera (Chadic) it has been shown (Pearce, 2012), that not only is phonetic reduction linked to the phonetic duration of the vowel, but also that reduction is blocked in vowel harmony domains. We are able to replicate previously published experiments by Pearce that were originally completed using manual measurements. We expect that our corpus phonetics workflow will be of value to phonologists working on other languages.
Highlights
1.1 Corpus phonetics Corpus phonetics is transforming the analysis of acoustic and articulatory record ings in the same way that corpus linguistics has transformed the analysis of transcriptions
1.2 Kera The reduction of vowels is a popular topic for research, but little has been said about the effects of vowel harmony on vowel reduction
In Kera (Chadic) it has been shown (Pearce, 2012), that is phonetic reduction linked to the phonetic duration of the vowel, and that reduction is blocked in vowel harmony domains
Summary
1.1 Corpus phonetics Corpus phonetics is transforming the analysis of acoustic and articulatory record ings in the same way that corpus linguistics has transformed the analysis of transcriptions. This “semiauto matic analysis of digital speech collections” (Liberman, 2019) is opening up new opportunities in phonetics and phonology and inspiring “a movement from the study of small, mostly artificial datasets to the analysis of published corpora of natural speech that are thousands of times larger” (Yuan et al, 2018). We describe the development of a languageindependent workflow We used this workflow to analyse the vowel system of a recently documented language, replicating existing results and revealing new perspectives on the speech data. In Kera (Chadic) it has been shown (Pearce, 2012), that is phonetic reduction linked to the phonetic duration of the vowel, and that reduction is blocked in vowel harmony domains
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