Fundamental frequency, jitter, and shimmer of adult stutters` and nonstutters` voice
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Mahdi Shaker Ardakani , Zahra Soleymani * 1, Farhad Torabinejad , Seyyedeh Maryam Khoddami , Mahmoud Alipour Heydari |
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Abstract: (16793 Views) |
Background and Aim: Objective measurement is general and acoustic measurements in particular have become a substantial aspect of stuttering assessment during the last few decades. Measurements do not replace the perceptual judgment, but they allow a more precise diagnosis, provide more evidence for therapeutic interventions, and are useful as feedback for patients in therapy. The purpose of this investigation was to compare some adult male stutterers&apos and nonstutterers&apos acoustic features. Materials and Methods: Adult male stutterers and nonstutterers participated this case-control study. Their fluent reading of 20 sentences in Farsi, prolongation of vowels /a/ and /i/, and rhythmic counting from 1 to 20 were analyed with Dr. Speech software. Results: There were no significant differences between two groups in fundamental frequency (f0) and standard deviation of f0 in three speech samples (vowels /a/ and /i/, reading 20 sentences, and rhythmic counting from 1 to 20). No significant difference were between two groups for jitter and shimmer. Conclusion: Non significant differences between two groups are somewhat due to investigation of this parameters in fluent speech of stutterers and nonstutterers. |
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Keywords: stuttering, fundamental frequency, jitter, shimmer, voice, acoustic features |
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Full-Text [PDF 178 kb]
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Type of Study: Research |
Received: 2007/06/30 | Accepted: 2007/09/9 | Published: 2013/10/7
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