CODING AND ANALYSIS OF SPEECH IN COCHLEAR IMPLANT: A REVIEW

Seema Barda, Dharam Vir, Shailendra Singh

Abstract


About 5% of the total population of world has hearing impairment and this is 6.3% in India.The hearing impairment in patients can be corrected by using a hearing aid or cochlear implant (CI) .Hearing aid is a traditional way while CI, which is surgically implanted, is a modern way to correct the hearing impairment. In comparison to hearing aids CI increases speech intelligibility at a greater level. Also speech intelligibility decreases in noise though acceptable in noise-free environments. With the advancement of technology over past decades, it shows increase in speech intelligibility with new emerging speech coding strategies. In this paper the basic speech processing strategies for speech coding and different techniques and algorithms, which aimed to increase the speech intelligibility, are being reviewed. Speech will be analyzed based on some measures like Analysis of Variation (ANOVA), Root Mean Square Error (RMSE) etc. The focus will be on speech perception and intelligibility enhancement.


Keywords


SNR, CIS strategy, speech intelligibility, SRT, speech processing strategies.

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References


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DOI: https://doi.org/10.26483/ijarcs.v9i3.6092

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