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Speech prosody, voice quality and personality.

Brigitte Zellner Keller¹

¹Department of Clinical Psychology and Rehabilitative Psychiatry, University Hospital of Social and Community Psychiatry, Bern, Switzerland. Brigitte.ZellnerKeller@unil.ch

Logopedics, Phoniatrics, Vocology

|September 9, 2005

Summary

This study reveals that individual voice intonation patterns are unique, unlike speech intensity which remains consistent across speakers. These intonational differences may link to personality traits.

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Area of Science:

Linguistics
Psychology
Speech Science

Background:

The individual characteristics of spoken language, particularly speech prosody (rhythm, intonation, intensity), are not well understood.
Previous research suggests a connection between a speaker's prosodic style and their perceived personality.

Purpose of the Study:

To investigate the 'individuation' of oral language by analyzing speech prosody in male speakers.
To explore the relationship between individual prosodic styles, specifically intonation and intensity, and personality traits.

Main Methods:

Analyzed fundamental frequency (F0) distributions for intonation and decibel (dB) distributions for intensity in 34 male speakers.
Examined speech samples from both text-reading and spontaneous speech tasks.

Main Results:

Fundamental frequency (F0) distributions varied significantly among speakers, irrespective of the speech task.
Decibel (dB) distributions for speech intensity were highly consistent across all speakers.
Individual intonational styles were further analyzed in relation to personality styles.

Conclusions:

Speech intensity is a stable, non-individualized characteristic across speakers in this study.
Individual intonational patterns show distinct variations among speakers, suggesting a potential link to personality.
Further research is warranted to fully understand the connection between unique intonational styles and personality profiles.