Anti-noise

1 April 1992

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Potentials

Vol. 11 (2) , 36-40
https://doi.org/10.1109/45.127730

Abstract

Broadband (turbulent) and narrowband noises are defined, and examples are given. The limitations of passive noise control techniques (good design, absorption) are noted, and active noise cancellation, using anti-noise (a copy of the noise used to cancel the original), is discussed. An active muffler system applied to an engine's exhaust is presented as an example.

Keywords

ACOUSTIC NOISE
WORKING ENVIRONMENT NOISE
NOISE CANCELLATION
LOW-FREQUENCY NOISE
FREQUENCY
ACTIVE NOISE REDUCTION
NOISE LEVEL
DIGITAL SIGNAL PROCESSING
COSTS
NARROWBAND

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