Active control of environmental noise, III: Implementation of theory into practice

S. E. Wright*, B. Vuksanovic

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In paper I [1] a theory for generating electronically controlled acoustic shadows for environmental noise reduction was considered. In paper II [2] the theory was extended to complex high frequency sound from non compact sources. Finally paper IV [10] considers the practical applications of the theory. These studies show that deep shadows are theoretically possible. This paper considers the implementation of the theory into a practical multichannel free-field control system and its basic performance. Providing certain stability conditions are met, deep shadows > 60 dB are generated at the microphones, limited only by the ambient noise of the laboratory.

Original languageEnglish
Pages (from-to)469-496
Number of pages28
JournalJournal of Sound and Vibration
Volume220
Issue number3
DOIs
Publication statusPublished - 25 Feb 1999

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