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Active Noise Cancellation--performance in a Hearing Protector Under Ideal and Degraded Conditions.

Authors
Bartholomae-RC; Stein-RR
Source
Paper in Noise-con 90 Univ Texas, Austin 1990 :151-155
Link
NIOSHTIC No.
10008426
Abstract
Historically, the concept of an active noise control (anc) system emerged in the initial stages of the electronics revolution, when the commercial application of the vacuum tube amplifier was being developed into radio, television, talking pictures, etc. Only in the 1980's were systems for very special applications developed with varying success. These special applications include noise cancellation systems for low-frequency noise, typically in confined spaces. This U.S. Bureau of Mines paper focuses on investigating the performance of a prototype commercial anc system developed for a personal hearing protection device. The objective was to study the performance of the anc system under controlled, ideal, and nonideal situations, and to assess how this performance would change.
Publication Date
19900101
Document Type
OP;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
OP 277-90
NIOSH Division
PRC;
Source Name
Paper in Noise-con 90. Univ. Texas, Austin, 1990, PP. 151-155
State
TX;
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