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Beyond formants: vowel perception at high fundamental frequencies


Friedrichs, Daniel. Beyond formants: vowel perception at high fundamental frequencies. 2017, University of Zurich, Faculty of Arts.

Abstract

It is commonly assumed that the vowel identification process is mainly driven by an underlying acoustic representation of formant frequency patterns. This assumption contributes largely to the pervasive idea that listeners’ ability to recognize vowels has to be poor at very high fundamental frequencies (f o ) due to a sparse sampling of the vocal tract transfer function. In this cumulative thesis, it is shown that the phonological function of vowels can be maintained at f o s up to at least 880 Hz and that listeners can identify the point vowels /i a u/ at even higher f o s. Auditory excitation patterns revealed highly differentiable representations for these categories that can be used as landmarks for vowel category perception at high f o s. The results suggest that theories of vowel perception based on overall spectral shape will provide a fuller account of vowel perception than those based solely on formant frequency patterns

Abstract

It is commonly assumed that the vowel identification process is mainly driven by an underlying acoustic representation of formant frequency patterns. This assumption contributes largely to the pervasive idea that listeners’ ability to recognize vowels has to be poor at very high fundamental frequencies (f o ) due to a sparse sampling of the vocal tract transfer function. In this cumulative thesis, it is shown that the phonological function of vowels can be maintained at f o s up to at least 880 Hz and that listeners can identify the point vowels /i a u/ at even higher f o s. Auditory excitation patterns revealed highly differentiable representations for these categories that can be used as landmarks for vowel category perception at high f o s. The results suggest that theories of vowel perception based on overall spectral shape will provide a fuller account of vowel perception than those based solely on formant frequency patterns

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Additional indexing

Item Type:Dissertation (monographical)
Referees:Dellwo Volker, Meyer Martin
Communities & Collections:06 Faculty of Arts > Institute of Psychology
06 Faculty of Arts > Department of Comparative Linguistics
UZH Dissertations
Dewey Decimal Classification:410 Linguistics
430 German & related languages
890 Other literatures
Language:English
Place of Publication:Zurich
Date:2017
Deposited On:29 Jan 2018 12:12
Last Modified:10 Jun 2020 16:44
Number of Pages:117
OA Status:Green
Related URLs:https://www.recherche-portal.ch/permalink/f/5u2s2l/ebi01_prod011085646 (Library Catalogue)

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