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Listener Adaptive Filtering Strategies for Personal Audio Reproduction over Loudspeaker Arrays

This paper describes the creation of dynamic filters for listener adaptive personal audio reproduction with loudspeaker arrays. The proposed filters allow rendering two audio signals to provide personalised audio programs to a pair of listeners. The filters are modified on real-time according to the listeners’ position, which can be estimated by a listener-tracking device. This is obtained by expressing the impulse response of each filter as a network of, sparse, variable gain-delay elements that are modified so that the filters adjust the reproduced beam pattern to the listeners’ position, assuming that each loudspeaker behaves according to a point-source radiation model. The paper introduces the formulation of the filters together with simulations of performance compared with established filter creation techniques.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=18328

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