Characteristics of Japanese Electrolaryngeal Speech Produced by Untrained Speakers: An Observational Study Involving Healthy Volunteers.

Purpose: The aim of this study was to investigate the characteristics of electrolaryngeal (EL) speech among untrained speakers to aid in its effective introduction and to identify syllables and words that are easy or difficult to pronounce. Method: A total of 21 healthy individuals who had never use...

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Publicado en:Journal of Speech, Language & Hearing Research Vol. 64; no. 10; pp. 3786 - 3794
Autores principales: Koji Sato, Junji Genda, Ryoya Minabe, Takumi Taniguchi
Formato: Artículo
Publicado: American Speech-Language-Hearing Association Oct2021
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Acceso en línea:Ver este registro en EBSCOhost
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      dt: Oct2021
      vid: 64
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      pub: American Speech-Language-Hearing Association
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        10.1044/2021_JSLHR-21-00069
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        atl: Characteristics of Japanese Electrolaryngeal Speech Produced by Untrained Speakers: An Observational Study Involving Healthy Volunteers.
      aug:
        au:
          Koji Sato
          Junji Genda
          Ryoya Minabe
          Takumi Taniguchi
        affil:
          Intensive Care Unit, Kanazawa University Hospital, Japan
          Department of Rehabilitation, Kanazawa University Hospital, Japan
          Department of Anesthesiology and Intensive Care Medicine, Graduate School of Medical Sciences, Kanazawa University, Japan
      su:
        Human research subjects
        Informed consent (Medical law)
        Communication
        Speech perception
        Kruskal-Wallis Test
        Scientific observation
        Confidence intervals
        Intelligibility of speech
        Speech evaluation
        Health outcome assessment
        Mathematical variables
        Descriptive statistics
        Alaryngeal speech
        Statistical sampling
        Data analysis software
        Longitudinal method
      sug:
        subj:
          Human research subjects
          Informed consent (Medical law)
          Communication
          Marketing Research and Public Opinion Polling
          Speech perception
          Kruskal-Wallis Test
          Scientific observation
          Confidence intervals
          Intelligibility of speech
          Speech evaluation
          Health outcome assessment
          Mathematical variables
          Descriptive statistics
          Alaryngeal speech
          Statistical sampling
          Data analysis software
          Longitudinal method
      ab: Purpose: The aim of this study was to investigate the characteristics of electrolaryngeal (EL) speech among untrained speakers to aid in its effective introduction and to identify syllables and words that are easy or difficult to pronounce. Method: A total of 21 healthy individuals who had never used an EL were included. The participants were briefed, and tests comprising 100 Japanese syllables and 50 single words were conducted to evaluate EL speech intelligibility. A trained speaker was defined as a certified speech-language pathologist who underwent EL training for 3 months. A 5-point electrolarynx effectivity score (EES) was used for the subjective assessment of EL. Results: The median (interquartile range) intelligibility scores of the untrained and trained groups were 24.0% (20.0%-34.0%) and 40.0% (36.0%-45.0%) for syllables and 48.0% (38.0%-60.0%) and 88.0% (82.0%-90.0%) for words, respectively. The intelligibility scores for syllables and words were higher in the trained group than those in the untrained group. Only two syllable subgroups (/m/ and /w/) had > 80% correct answers among untrained speakers. A total of 14 syllable subgroups (/k, k, s, ɞ, t, tɞ, ts, ɲ, h, ç, φ, p, p, and a/), a number of which contained voiceless consonants, had < 40% correct answers among both speaker groups. A greater number of morae were associated with higher intelligibility scores. An EES of 4, indicating that the EL was effective, was the most frequent score. Conclusions: It was difficult for untrained speakers to produce intelligible speech using an EL. Syllables, including voiceless consonants, were difficult to pronounce using an EL. Longer words with a greater number of morae were more intelligible, even for untrained EL speakers. Supplemental Material: https://doi.org/10.23641/asha.16632622
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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