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Does knowing speaker sex facilitate vowel recognition at short durations?

Smith, David R. R.


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Dr David Smith
Senior Lecturer, Director of Studies for Psychology


A man, woman or child saying the same vowel do so with very different voices. The auditory system solves the complex problem of extracting what the man, woman or child has said despite substantial differences in the acoustic properties of their voices. Much of the acoustic variation between the voices of men and woman is due to changes in the underlying anatomical mechanisms for producing speech. If the auditory system knew the sex of the speaker then it could potentially correct for speaker sex related acoustic variation thus facilitating vowel recognition. This study measured the minimum stimulus duration necessary to accurately discriminate whether a brief vowel segment was spoken by a man or woman, and the minimum stimulus duration necessary to accurately recognise what vowel was spoken. Results showed that reliable vowel recognition precedes reliable speaker sex discrimination, thus questioning the use of speaker sex information in compensating for speaker sex related acoustic variation in the voice. Furthermore, the pattern of performance across experiments where the fundamental frequency and formant frequency information of speaker’s voices were systematically varied, was markedly different depending on whether the task was speaker-sex discrimination or vowel recognition. This argues for there being little relationship between perception of speaker sex (indexical information) and perception of what has been said (linguistic information) at short durations.


Smith, D. R. R. (2014). Does knowing speaker sex facilitate vowel recognition at short durations?. Acta Psychologica, 148(May), 81-90.

Journal Article Type Article
Acceptance Date Jan 8, 2014
Online Publication Date Feb 1, 2014
Publication Date 2014-05
Deposit Date May 13, 2015
Publicly Available Date May 13, 2015
Journal Acta psychologica
Print ISSN 0001-6918
Electronic ISSN 1873-6297
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 148
Issue May
Pages 81-90
Keywords Speaker sex, Vowel recognition, Duration, Indexical information
Public URL
Publisher URL
Additional Information Author's accepted manuscript of article published in: Acta psychologica, 2014, v.148 at


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