ORIGINAL ARTICLE
EFFECT OF AGE ON TIME-COMPRESSED SPEECH PERCEPTION AND SPEECH PERCEPTION IN NOISE IN NORMAL-HEARING INDIVIDUALS
 
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Department of Audiology, All India Institute of Speech and Hearing, Mysore, India
CORRESPONDING AUTHOR
Himanshu Kumar Sanju   

Himanshu Kumar Sanju, Department of Audiology, All India Institute of Speech and Hearing, Mysore, India, e-mail: himanshusanjuaiish@gmail.com
Publication date: 2020-04-14
 
J Hear Sci 2016;6(1):33–39
 
KEYWORDS
ABSTRACT
Background:
This work studied, in individuals with normal hearing, the perception of time-compressed speech, compression ratio, and speech perception in noise using phonemically balanced (PB) word lists in Kannada. The effect of age was also studied.

Material and Methods:
Participants were 29 young and middle-aged adults (native Kannada speakers) aged 15 to 50 years. The Speech Perception in Noise (SPIN) test was administered at signal to noise ratios (SNRs) of +5 dB, 0 dB, –5 dB, and in quiet. The Time-Compressed Speech Test (TCST) was administered on all participants at compression ratios of 0%, 40%, 50%, and 60%.

Results:
Young adults performed better than middle-aged adults in both the TCST and SPIN tests. As difficulty levels rose, performance decreased in both tests.

Conclusions:
Even in individuals with normal hearing, ageing has a deleterious effect on the performance of the central auditory processing system, which is necessary for speech perception under adverse listening conditions.

 
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