Laboratory Development of an Amplitude-Sensitive Ear Plug
Abstract
The theoretical basis for the attenuation given by various forms of ear defender is examined, particular attention being paid to those designed to attenuate selectively gunfire noise rather than speech. Details of a modification of the familiar V.51R ear plug are then given in which the change in the nature of the air flow through a small orifice, occurring at high pressure levels, is used to provide the selective attenuation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1969
- Accession Number
- AD0728906
Entities
People
- M. R. Forrest