Widening Frequency Band of Uniform SPL Distribution Using Adaptive Genetic Algorithm

Zhao Xin Huang; Sai Ma; Hui Wang

doi:10.4028/www.scientific.net/AMM.427-429.1040

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429Widening Frequency Band of Uniform SPL...

Widening Frequency Band of Uniform SPL Distribution Using Adaptive Genetic Algorithm

Abstract:

Uniform sound pressure level (SPL) distribution of linear phased loudspeaker array is limited by frequency. This paper widens the applicable frequency band of uniform SPL distribution in a linear listening area. By using an improved adaptive genetic algorithm (which contains a novel objective function, modified genetic operators and parameter setups) to control the directivity pattern details accurately, uniform distribution of SPL on a linear listening line in a wider frequency is achieved. The simulation and experimental results show that the SPLs on the test listening line are basically uniform from 200Hz to 500Hz, which demonstrates that the improvement of adaptive genetic algorithm is effective.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

1040-1043

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.1040

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Online since:

September 2013

Authors:

Zhao Xin Huang*, Sai Ma, Hui Wang

Keywords:

Adaptive Genetic Algorithm, Loudspeaker Array, SPL, Widening Frequency Band

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