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Updated: Jun 23, 2025
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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
Published on: September 27, 2024
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Exploring Interspeaker Variation in Creaky Voice in Dutch
Thom B R van Hugte1, Willemijn F L Heeren2
1Institut für Linguistik, Leipzig University, Leipzig, Germany; Leiden University Centre for Linguistics, Leiden University, Leiden, The Netherlands.
Summary
Dutch men exhibit unique creaky voice patterns, with significant interspeaker variation. Acoustic analysis confirmed this variation allows for moderate speaker classification, highlighting distinct vocal profiles.
Area of Science:
- Phonetics
- Speech Science
- Linguistics
Background:
- Creaky voice is a phonation type.
- Interspeaker variation in speech is a known phenomenon.
- Limited research exists on creaky voice variation in Dutch.
Purpose of the Study:
- To investigate the extent of interspeaker variation in creaky voice among Dutch men.
- To assess the potential of creaky voice acoustics for speaker discrimination.
Main Methods:
- Manual segmentation and annotation of creaky voice intervals in spontaneous speech from 30 male Dutch speakers.
- Calculation of total creakiness and categorization of creaky subtypes.
- Acoustic analysis and linear discriminant analysis (LDA) for speaker classification.
Main Results:
- Significant differences in the percentage of creaky syllables (0-5%) and creaky voice subtypes were observed among speakers.
- Distinctive creaky voice profiles were identified for individual speakers.
- LDA achieved above-chance correct classification rates of speech intervals to speakers.
Conclusions:
- Interspeaker variation in creaky voice is present in Dutch male speech.
- Acoustic features of creaky voice enable moderate speaker classification.
- Creaky voice characteristics can serve as biometric identifiers.
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