Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

A critical analysis of attenuation effects of different types of ear protective devices

  • 19 Accesses

Abstract

The present study was undertaken to evaluate the noise attenuation characteristics of different types of Ear protective Devices which are commonly used. 20 healthy normal subjects’ open and closed hearing thresholds (with the usage of ear protective device) were recorded in an anechoic chamber and the attenuation charactaristics at 8 discrete frequencies were analysed and compared. Though the attenuation given by different types of ear protective devices are variable and not the ideal, still the present generation of devices have shown satisfactory attenuation characteristics, It is important that proper selection, fitment and usage of these devices should he carefully thought of prior to its usage.

This is a preview of subscription content, log in to check access.

References

  1. 1.

    King, PJ (1978): Otorhinolaryngology in Aviation. Aviation Medicine-Health and Clinical Aspects Vol. II, Chap 17, pp 232–263 Edited by Dhenin, G.,

  2. 2.

    Rosenblith, WA, Stevens, KN and the Staff of Polt, Beranik and Newsan Inc. (1953). Technical Report 52-204, Vol II, Wright Air Development Centre.

  3. 3.

    Alberti, PW (1979): Noise and the ear. Scott Brown’s Disease of the Ear, Nose and Throat. Fourth Edition, Vol II, pp 551–622, Butterworths.

  4. 4.

    Murty, VSN and Verghese, CA(1979) : Design and Construction of an anechoic chamber at IAM, Dept. Project No 1.

  5. 5.

    Tolhurst. GI (1954) : Special Report No 54-4, US Naval School of Aviation Medicine.

Download references

Author information

Correspondence to A. B. Rao.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Rao, A.B., Rao, B.P. A critical analysis of attenuation effects of different types of ear protective devices. Indian J Otolaryngol 43, 210–213 (1991). https://doi.org/10.1007/BF02994584

Download citation

Keywords

  • Protective Device
  • Attenuation Effect
  • Attenuation Characteristic
  • Noise Induce Hearing Loss
  • Hearing Protector