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KMID : 1022420150070010027
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Phonetics and Speech Sciences
2015 Volume.7 No. 1 p.27 ~ p.37
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Effects of Background Noises on Speech-related Variables of Adults who Stutter
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Park Jin
Oh Sun-Young
Jun Je-Pyo
Kang Jin-Seok
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Abstract
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This study was mainly aimed at investigating on the effects of background noises (i.e., white noise, multi-speakerconversational babble) on stuttering rate and other speech-related measures (i.e., articulation rate, speech effort). NineKorean-speaking adults who stutter participated in the study. Each of the participants was asked to read a series of passagesunder each of four experimental conditions (i.e., typical solo reading (TR), choral reading (CR), reading under white noisepresented (WR), reading with multi-speaker conversational babble presented (BR). Stuttering rate was computed based on apercentage of syllables stuttered (%SS) and articulation rate was also assessed as another speech-related measure under eachof the experimental conditions. To examine the amount of physical effort needed to read, the speech effort was measured byusing the 9-point Speech Effort Self Rating Scale originally employed by Ingham et al. (2006). Study results showed thatthere were no significant differences among each of the passage reading conditions in terms of stuttering rate, articulationrate, and speech effort. In conclusion, it can be argued that the two different types of background noises (i.e., white noiseand multi-speaker conversational babble) are not different in the extent to which each of them enhances fluency of adultswho stutter. Self ratings of speech effort may be also useful in measuring speech-related variables associated with vocalchanges induced under each of the fluency enhancing conditions.
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KEYWORD
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stuttering, background noises, white noise, multi-speaker conversational babble, articulation rate, speech effort
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FullTexts / Linksout information
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Listed journal information
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