Application of radiation mode in desired sound field generation using loudspeaker array

Yuan Wen*, Woon Seng Gan, Jun Yang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

This paper presents two preprocessing methods for the task of generating a desired response in a target region while simultaneously depressing the sound pressure level (SPL) in a stop region using a loudspeaker array. The first is a least square method applying a commonly used cost function. The complex source strengths/weights are obtained by optimizing the cost function. The least square solution may cause a low gain problem. The problem can be solved by the second method, which incorporates a radiation mode filter in the cost function. Simulations show that the second method offers the flexibility of controlling the gain of the array and still maintains the fidelity of generating the desired sound field.

Original languageEnglish
Article number1465293
Pages (from-to)3139-3142
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventIEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan
Duration: May 23 2005May 26 2005

ASJC Scopus Subject Areas

  • Electrical and Electronic Engineering

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