Effect of signal to noise ratio on the speech perception ability of older adults

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SHOJAEI ELAHE; ASHAYERI HASSAN; JAFARI ZAHRA; ZARRINDAST MOHAMMAD REZA; KAMALI KOOROSH

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Journal: MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN Year:2016 | Volume:30 | Issue:1 Page(s): 0-0

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Title

Effect of signal to noise ratio on the speech perception ability of older adults

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Keywords

Word Discrimination Score

Signal to Noise Ratio

Elderly

Abstract

Background: Speech perception ability depends on auditory and extra-auditory elements. The signal-to-noise ratio (SNR) is an extra-auditory element that has an effect on the ability to normally follow speech and maintain a conversation. Speech in noise perception difficulty is a common complaint of the elderly. In this study, the importance of SNR magnitude as an extra-auditory effect on speech perception in noise was examined in the elderly. Methods: The speech perception in noise test (SPIN) was conducted on 25 elderly participants who had bilateral low– mid frequency normal hearing thresholds at three SNRs in the presence of ipsilateral white noise. These participants were selected by available sampling method. Cognitive screening was done using the Persian Mini Mental State Examination (MMSE) test. Results: Independent T-test, ANNOVA and Pearson Correlation Index were used for statistical analysis. There was a significant difference in word discrimination scores at silence and at three SNRs in both ears (p≤ 0. 047). Moreover, there was a significant difference in word discrimination scores for paired SNRs (0 and +5, 0 and +10, and +5 and +10 (p≤ 0. 04)). No significant correlation was found between age and word recognition scores at silence and at three SNRs in both ears (p≥ 0. 386). Conclusion: Our results revealed that decreasing the signal level and increasing the competing noise considerably reduced the speech perception ability in normal hearing at low– mid thresholds in the elderly. These results support the critical role of SNRs for speech perception ability in the elderly. Furthermore, our results revealed that normal hearing elderly participants required compensatory strategies to maintain normal speech perception in challenging acoustic situations.

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APA: Copy

SHOJAEI, ELAHE, ASHAYERI, HASSAN, JAFARI, ZAHRA, ZARRINDAST, MOHAMMAD REZA, & KAMALI, KOOROSH. (2016). Effect of signal to noise ratio on the speech perception ability of older adults. MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI), 30(1), 0-0. SID. https://sid.ir/paper/294513/en

Vancouver: Copy

SHOJAEI ELAHE, ASHAYERI HASSAN, JAFARI ZAHRA, ZARRINDAST MOHAMMAD REZA, KAMALI KOOROSH. Effect of signal to noise ratio on the speech perception ability of older adults. MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI)[Internet]. 2016;30(1):0-0. Available from: https://sid.ir/paper/294513/en

IEEE: Copy

ELAHE SHOJAEI, HASSAN ASHAYERI, ZAHRA JAFARI, MOHAMMAD REZA ZARRINDAST, and KOOROSH KAMALI, “Effect of signal to noise ratio on the speech perception ability of older adults,” MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI), vol. 30, no. 1, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/294513/en

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