Speech perception performance of Telugu speaking elderly population and number of compression channels in digital hearing aid technology

S B Rathna Kumar; P Chaithanya Sushma; Panchanan Mohanty; Manish Kumar Gupta; Ram Pravesh Sharma

doi:10.17485/IJST/v13i46.1953

Article

Speech perception performance of Telugu speaking elderly population and number of compression channels in digital hearing aid technology

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v13i46.1953

Year: 2020, Volume: 13, Issue: 46, Pages: 4579-4586

Original Article

Speech perception performance of Telugu speaking elderly population and number of compression channels in digital hearing aid technology

S B Rathna Kumar¹, P Chaithanya Sushma^2*, Panchanan Mohanty³, Manish Kumar Gupta⁴, Ram Pravesh Sharma¹

¹Ali Yavar Jung National Institute of Speech and Hearing Disabilities (Divyangjan),, Mumbai, India
²Hear World Speech and Hearing Clinic, Hyderabad, Telangana, India. Tel.: +91 9440902210
³Department of English, GLA University, Mathura, Uttar Pradesh, India
⁴Department of ENT, Western Command Hospital, Panchkula, India

*Corresponding Author
Tel: +91 9440902210
Email: [email protected]

Received Date:29 October 2020, Accepted Date:30 November 2020, Published Date:22 December 2020

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Background: We assessed the speech perception performance of the elderly population with hearing impairment in quiet and noisy listening environments as a function of the number of compression channels in digital hearing aids. Materials and Methods: Participants were 14 elderly individuals with hearing impairment in the age range of 65 to 70 years (M=67.35; SD=1:63). Speech recognition score (SRS) testing as a measure of speech perception was performed on each participant in quiet and +5 dB SNR listening environments with hearing aids in 2, 4, 6, 8, 10, and 12 channel settings respectively. Results: Results revealed significant difference in SRS between 2 vs 4, 2 vs 6, 2 vs 8, 2 vs 10, 2 vs 12, 4 vs 12 channel settings, and no significant difference between 4 vs 6, 4 vs 8, 4 vs 10, 4 vs 12, 6 vs 8, 6 vs 10, 6 vs 12, 8 vs 10, 8 vs 12, 10 vs 12 channel settings in quiet listening environment. Whereas in +5 dB SNR listening environment, there was significant difference in SRS between 2 vs 4, 2 vs 6, 2 v 8, 2 vs 10, 2 vs 12, 4 vs 6, 4 vs 8, 4 vs 10, 4 vs 12 channel settings, and no significant difference between 6 vs 8, 6 vs 10, 6 vs 12, 8 vs 10, 8 vs 12, 10 vs 12 channel settings. Conclusions: Participants achieved maximum speech perception benefit with hearing aids in 4 and 6 channel settings in quiet and noisy listening environments respectively. Further, it was noticed that besides greater performance in the quiet listening environment, the presence of background noise considerably degraded speech perception irrespective of channel settings.

Keywords: Hearing impairment; elderly population; speech recognition score; compression channels; digital hearing aids

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Copyright

© 2020 Rathna Kumar et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)