Effect of vents on the output of hearing Aids

  • Mita Sarkar Audiologist and Speech & Language Pathologist AYJNIHH, ERC, Kolkata
  • Ashok Kumar Sinha Reader & Assistant Director, AYJNIHH, ERC, Kolkata
  • Nachiketa Rout Lecturer Speech and Hearing, AYJNIHH, ERC, Kolkata
Keywords: Ear moulds, parallel venting, diagonal venting, electroacoustic characteristics, analog hearing aids, sloping sensori-neutral hearing loss

Abstract

The aim of the study was to explore the effect of vents on the speech discrimination scores and electroacoustic characteristics of body level hearing aids. The Nineteen adults who participated in the study had mild to moderate sloping sensori-neural hearing loss and were in the age range of 18-70 years. Apart from 19 hearing aids users additional 11 hearing aids were also taken for the study of electro-acoustic characteristics only. Major changes in the electroacoustic characteristics of the body worn hearing aids was observed on HFA OSPL90, FOG and EINL which reduced to 7.31%, 9.19% and 7.72% when parallel vent of 2mm were bored in the regular ear moulds respectively. Parallel/ Diagonal vents improved the Speech Discrimination score by 9%. The cumulative impact of venting can be seen on improvement of speech discrimination scores and subjective impression of clear speech.

DOI: http://dx.doi.org/10.3329/bjo.v18i1.10420   

Bangladesh J Otorhinolaryngol 2012; 18(1): 59-62

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Abstract
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Published
2012-04-21
How to Cite
Sarkar, M., Sinha, A., & Rout, N. (2012). Effect of vents on the output of hearing Aids. Bangladesh Journal of Otorhinolaryngology, 18(1), 59-62. https://doi.org/10.3329/bjo.v18i1.10420
Section
Original Articles