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Communication Dans Un Congrès Année : 2020

Categorization of Whistled Consonants by French Speakers

Résumé

Whistled speech is a form of modified speech where some frequencies of vowels and consonants are augmented and transposed to whistling, modifying the timbre and the construction of each phoneme. These transformations cause only some elements of the signal to be intelligible for naive listeners, which, according to previous studies, includes vowel recognition. Here, we analyze naive listeners’ capacities for whistled consonant categorization for four consonants: /p/, /k/, /t/ and /s/ by presenting the findings of two behavioral experiments. Though both experiments measure whistled consonant categorization, we used modified frequencies — lowered with a phase vocoder — of the whistled stimuli in the second experiment to better identify the relative nature of pitch cues employed in this process. Results show that participants obtained approximately 50% of correct responses (when chance is at 25%). These findings show specific consonant preferences for “s” and “t” over “k” and “p”, specifically when stimuli is unmodified. Previous research on whistled consonants systems has often opposed “s” and “t” to “k” and “p”, due to their strong pitch modulations. The preference for these two consonants underlines the importance of these cues in phoneme processing.
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Dates et versions

hal-03058856 , version 1 (11-12-2020)

Identifiants

Citer

Anaïs Tran Ngoc, Julien Meyer, Fanny Meunier. Categorization of Whistled Consonants by French Speakers. Interspeech 2020 - 21st Annual Conference of the International Speech Communication Association, Oct 2020, Shanghai (Virtual Conf), China. pp.1600-1604, ⟨10.21437/Interspeech.2020-2683⟩. ⟨hal-03058856⟩
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