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September 10, 2025The Journal of the Acoustical Society of America

Nonlinearities of the auditory pathway constrain the cross-linguistic structure of vowel systems

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Authors

DPDaniel D. PyskatyUniversity of Rochester DGDaniel R. GuestUniversity of Rochester Medical Center DSDouglas M. SchwarzUniversity of Rochester

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Implication

Observational analysis shows fewer vowel contrasts along F2 than F1 in synthetic vowel systems, suggesting auditory pathways constrain vowel representation.

Key Points

Vowel contrasts show a disparity based on the first two formants, F1 and F2, with F1 supporting more contrasts.
Synthetic vowels in noise reveal F1 has a more robust encoding scheme than F2, highlighting dependency on auditory dynamics.
Nonlinearities like saturation and suppression within the auditory pathway limit vowel representation and category encoding.
Classification of neural responses to synthetic vowels indicates that F2 is more vulnerable to noise interference compared to F1.

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Pyskaty et al. (2025) studied this question.

synapsesocial.com/papers/68c1b5fe54b1d3bfb60eac52 https://doi.org/10.1121/10.0037779

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Implication

Observational analysis shows fewer vowel contrasts along F2 than F1 in synthetic vowel systems, suggesting auditory pathways constrain vowel representation.

Nonlinearities of the auditory pathway constrain the cross-linguistic structure of vowel systems

Discussion

Member takes

Implication

Key Points

Cite This Study

Nonlinearities of the auditory pathway constrain the cross-linguistic structure of vowel systems

Discussion

Member takes

Implication

Key Points

Cite This Study

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