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Segmental vs phrase-level creak in Polish: An acoustic analysis
Maral Asiaee1, Ewelina Wojtkowiak1, Kamil Kaźmierski1
1Experimental Phonology and Phonetics Laboratory, Faculty of English, Adam Mickiewicz University, Poznań, Poland.
The Journal of the Acoustical Society of America
|July 7, 2026
Summary
Creaky voice in Polish has distinct acoustic properties depending on whether it
Area of Science:
- Phonetics
- Linguistics
- Acoustic phonetics
Background:
- Creaky voice can be a phrase-level or segmental phenomenon.
- In Polish, creaky voice can originate from glottalizing initial vowels.
- Understanding acoustic differences is key to phonological analysis.
Purpose of the Study:
- Investigate acoustic differences between segmental and phrase-level creaky voice in Polish.
- Compare spectral and harmonic properties of creaky phonation.
- Determine phonological origins of creaky voice.
Main Methods:
- Analyzed speech samples from ten female Polish speakers.
- Utilized VoiceSauce software for acoustic parameter extraction.
- Employed linear mixed-effects models for statistical analysis.
Main Results:
- Segmental creak exhibited significantly lower spectral tilt (e.g., H1*-A1*).
- Segmental creak showed significantly higher harmonic amplitudes (e.g., A1*, A2*, A3*).
- Acoustic differences distinguish segmental from phrase-final creak.
Conclusions:
- Polish segmental creak has unique acoustic correlates.
- Lower spectral tilt and higher harmonic amplitudes may enhance vowel perception.
- Findings suggest phonological motivation for creaky voice production.
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