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Glottalized lateral in Rikvani Andi: an acoustic study
Alexander Shiryaev1, Michael Daniel1,2, George Moroz1
1Linguistic Convergence Laboratory, HSE University, Moscow, Russia.
Phonetica
|October 28, 2022
Summary
Glottalized sonorants, rare speech sounds, were studied in Rikvani Andi. Acoustic analysis revealed differences in isolated words, but these diminished in natural speech, challenging phonetic theories.
Area of Science:
- Phonetics
- Linguistics
- Acoustic phonetics
Background:
- Glottalized sonorants are rare phonetic features.
- Their acoustic properties and timing are debated in phonetic theory.
- The role of syllable position in glottalization is a key area of research.
Purpose of the Study:
- Investigate the acoustic properties of the glottalized lateral in Rikvani Andi.
- Examine acoustic correlates differentiating glottalized from modal sonorants.
- Analyze the timing of glottalization in relation to syllable position.
Main Methods:
- Elicitation of speech data.
- Analysis of free narratives.
- Acoustic analysis of aperiodicity, intensity, duration, and spectral tilt.
- Statistical analysis of acoustic correlates.
Main Results:
- Acoustic differences between glottalized and modal laterals were statistically significant in isolated words.
- These differences decreased in free narratives.
- Glottalized laterals occurred in syllable onsets but showed mid- to post-glottalization, contrary to generalizations.
Conclusions:
- Acoustic correlates of glottalized sonorants are observable but context-dependent.
- The timing of glottalization in Rikvani Andi deviates from established typological expectations.
- Further research is needed to explain these deviations in phonetic patterns.
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