2023
DOI: 10.17726/philit.2023.2.4
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Neural network methods for vowel classification in the vocalic systems with the [ATR] (Advanced Tongue Root) contrast

N. V. Makeeva

Abstract: The paper aims to discuss the results of testing a neural network which classifies the vowels of the vocalic system with the [ATR] (Advanced Tongue Root) contrast based on the data of Akebu (Kwa family). The acoustic nature of the [ATR] feature is yet understudied. The only reliable acoustic correlate of [ATR] is the magnitude of the first formant (F1) which can be also modulated by tongue height, resulting in significant overlap between high [-ATR] vowels and mid [+ATR] vowels. Other acoustic metrics which ha… Show more

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