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Digital Hearing Aid Essay

1259 Words6 Pages

Digital Hearing Aid For Impaired People

(Software Based)

Arunima Sharma

Electronics and Communication

Lakshmi Narain College of Technology

Bhopal, India

arunimasharma211@gmail.com

Nipun Soni

Electronics and Communication

Lakshmi Narain College of Technology

Bhopal, India

nipun1707@gmail.com

Abstract— Traditional hearing aids are similar to a simple radio. They can be tuned and adjusted for volume, bass and treble. But hearing loss is not just technical loss of volume. Rather, hearing deficiency can increase sensitivity and reduce tolerance to certain sounds while diminishing sensitivity to others. For instance, digital technology can tell the difference between speech and background noise, allowing one in while filtering out the other. Approximately 10% of the world’s population suffers from some type of hearing loss, yet only a small percentage of this statistic use a hearing aid. The stigma associated with wearing a hearing aid, customer dissatisfaction with hearing aid performance, and the cost associated with a high performance solution are all causes of low market penetration. Through the use of digital signal processing, digital hearing aid now …show more content…

The main objective of a hearing aid is to fit the dynamic range of speech and everyday sounds into the restricted dynamic range of the impaired ear. Some sounds are totally inaudible and others can be detected because part of their spectra is audible, but may not be correctly identified because other parts of their spectra typically those parts at high frequencies-remain inaudible. The range of levels between the weakest sound that can be heard and the most intense sound that can be tolerated is less for a person with hearing impairment than for a normal listener. To compensate for this, hearing aids amplify weak sounds more than they amplify intense sounds

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