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Question intonation in conversational speech: Chungcheong and Gyeongsang varieties of Korean.

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Korean noun-noun compounds show predictable consonant tensification, influenced by cognitive boundary strength. This study reveals speakers adjust boundary strength based on complex linguistic factors, impacting sound production.

Keywords:
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Area of Science:

  • Phonetics and Phonology
  • Psycholinguistics
  • Speech Science

Background:

  • Korean noun-noun compounds often exhibit lenis-to-tense consonant changes in the second noun.
  • Previous research indicates this tensification process is not fully predictable.

Purpose of the Study:

  • To investigate the predictability of consonant tensification in Korean noun-noun compounds.
  • To explore the relationship between cognitive boundary strength and phonological/phonetic variability.
  • To identify factors influencing speakers' calibration of boundary strength.

Main Methods:

  • A speech production experiment was conducted with native Korean speakers.
  • Analysis focused on tensification probability and consonant duration.
  • Linguistic factors like word length, segment type, frequency, and plausibility were considered.

Main Results:

  • Tensification variability is predictable to a certain extent, mirroring cognitively determined boundary strength.
  • The relationship between predictors and variability is non-linear.
  • Compound plausibility directly impacts the duration of the tensified consonant.
  • Boundary strength calibration is fluid and affects both phonological and phonetic outputs.
  • Variability decreased at extreme tensification probabilities, with lexical exceptions noted.

Conclusions:

  • Consonant tensification in Korean compounds is influenced by a dynamic calibration of boundary strength.
  • Cognitive factors, including perceived plausibility, play a crucial role in speech production.
  • The findings contribute to understanding the interplay between linguistic knowledge and real-time speech processing.