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Optimal placement of loudspeakers and microphones in an enclosure using genetic algorithm

Research output: Contribution in Book/Report/ProceedingsPaper

Published

Associated organisational unit

Publication date2003
Host publicationControl Applications, 2003. CCA 2003. Proceedings of 2003 IEEE Conference on
Place of publicationNew York
PublisherIEEE
Pages135-139
Number of pages5
Volume1
ISBN (Print)0-7803-7729-X
Original languageEnglish

Conference

ConferenceIEEE Conference on Control Applications
CountryTurkey
CityISTANBUL
Period23/06/0325/06/03

Conference

ConferenceIEEE Conference on Control Applications
CountryTurkey
CityISTANBUL
Period23/06/0325/06/03

Abstract

In this paper genetic algorithm has been used for optimal placement of loudspeakers and microphones in an experimental enclosure for. active noise control system. A control system with two secondary loudspeakers and four error microphones is used to reduce the potential energy generated by primary source in a frequency range of 50Hz to 300Hz. By choosing the average of potential energy in this frequency range as a performance index, genetic algorithm is used to find the global minimum of this function. This performance index is a function of the locations of microphones and loudspeakers, hence a configuration of them corresponds to a value for this performance index. In this genetic algorithm a multivariable binary coding scheme along with a random initial population are used. Computation of the potential energy, and also the acoustical pressure pattern in a specified level shows that the locations obtained by genetic algorithm are very effective in the results.