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ACTIVE CONTROL OF ENVIRONMENTAL NOISE, III: IMPLEMENTATION OF THEORY INTO PRACTICE

✍ Scribed by S.E. Wright; B. Vuksanovic

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
350 KB
Volume
220
Category
Article
ISSN
0022-460X

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✦ Synopsis

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 q 60 dB are generated at the microphones, limited only by the ambient noise of the laboratory.

πŸ“œ SIMILAR VOLUMES

ACTIVE CONTROL OF ENVIRONMENTAL NOISE, V
ACTIVE CONTROL OF ENVIRONMENTAL NOISE, V: THE EFFECT OF ENVIRONMENTAL CHANGE ON THE STABILITY OF FREE FIELD SOUND CANCELLING SYSTEMS
✍ S.E. WRIGHT; H. ATMOKO πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 380 KB

This paper considers the e!ect of environmental change on the stability of hardware implemented electronically controlled acoustic shadow (ECAS) systems. These systems generate quiet zones (acoustic shadows) from unwanted noise sources in unrestricted space. The acoustic transfer function of the sys