#4134. Characteristics of japanese electrolaryngeal speech produced by untrained speakers: An observational study involving healthy volunteers

September 2026publication date
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Journal’s subject area:
Linguistics and Language;
Speech and Hearing;
Otorhinolaryngology;
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Abstract:
The aim of this research 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. A total of 21 healthy individuals who had never used an EL were included. The participants were briefed, and tests comprising 100 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. 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. An EES of 4, indicating that the EL was effective, was the most frequent score. It was difficult for untrained speakers to produce intelligible speech using an EL. Syllables, including voiceless consonants, were difficult to pronounce using an EL.
Keywords:
Electrolarynx; speech; words; syllables; voiceless consonants; speech production

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