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KMID : 0858620020060020118
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Korean Journal of Audiology
2002 Volume.6 No. 2 p.118 ~ p.127
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The Study on Developing a Test of Speech Perception
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An Lee-Jung
Kim Jin-Sook
Pae So-Young
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Abstract
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The purpose of this study is to verify the predictability and phonemic representation of key-words in KSPIN and to develop ‘new test lists’. The effect of contextual clues and 4 SNR conditions(-5, -3, 0, 5 dB SNR) was investigated through ‘new test lists’ to predict a listener’s ability to understand everyday speech. New lists was verified in 25 normal hearing adults(15 females, 10 males) ranging in age from 23.30 through 29.11 years. The results were as follows：1) The intelligibility of HP sentences that had contextual clues was always higher than the intelligibility of LP sentences that had no contextual clues. 2) The maximum of HP-LP difference was 15.75 at -3 dB SNR condition. 3) The meaningful separation between HP and LP performance was found at 0, -3 and -5 dB SNR conditions(p<0.05). 4) Interestingly, the performance of female subjects was superior to the performance of male subjects at -5 dB SNR (p<0.05). 5) Collaterally, this study showed the effect of speaker on intelligibility. When speaker was female, the performance was better than male speaker at almost all SNR conditions.
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KEYWORD
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HP(high predictability), LP(low predictability), SPIN(Speech Perception In Noise), SNR(signal to noise ratio)
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