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
 
 
Publication date: 2016-03-31
 
 
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
 
 
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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