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Spatial Multizone Soundfield Reproduction Design

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dc.contributor.advisor Kleijn, Bastiaan
dc.contributor.author Jin, Wenyu
dc.date.accessioned 2015-10-05T02:33:17Z
dc.date.accessioned 2022-11-03T03:22:35Z
dc.date.available 2015-10-05T02:33:17Z
dc.date.available 2022-11-03T03:22:35Z
dc.date.copyright 2015
dc.date.issued 2015
dc.identifier.uri https://ir.wgtn.ac.nz/handle/123456789/29750
dc.description.abstract It is desirable for people sharing a physical space to access different multimedia information streams simultaneously. For a good user experience, the interference of the different streams should be held to a minimum. This is straightforward for the video component but currently difficult for the audio sound component. Spatial multizone soundfield reproduction, which aims to provide an individual sound environment to each of a set of listeners without the use of physical isolation or headphones, has drawn significant attention of researchers in recent years. The realization of multizone soundfield reproduction is a conceptually challenging problem as currently most of the soundfield reproduction techniques concentrate on a single zone. This thesis considers the theory and design of a multizone soundfield reproduction system using arrays of loudspeakers in given complex environments. We first introduce a novel method for spatial multizone soundfield reproduction based on describing the desired multizone soundfield as an orthogonal expansion of formulated basis functions over the desired reproduction region. This provides the theoretical basis of both 2-D (height invariant) and 3-D soundfield reproduction for this work. We then extend the reproduction of the multizone soundfield over the desired region to reverberant environments, which is based on the identification of the acoustic transfer function (ATF) from the loudspeaker over the desired reproduction region using sparse methods. The simulation results confirm that the method leads to a significantly reduced number of required microphones for an accurate multizone sound reproduction compared with the state of the art, while it also facilitates the reproduction over a wide frequency range. en_NZ
dc.format pdf en_NZ
dc.language en_NZ
dc.language.iso en_NZ
dc.publisher Te Herenga Waka—Victoria University of Wellington en_NZ
dc.subject Spatial Audio en_NZ
dc.subject Multizone Soundfield Reproduction en_NZ
dc.subject Reverberation Equalization en_NZ
dc.subject Sparse Approximation en_NZ
dc.subject Adaptive Filtering en_NZ
dc.title Spatial Multizone Soundfield Reproduction Design en_NZ
dc.type Text en_NZ
vuwschema.contributor.unit School of Engineering and Computer Science en_NZ
vuwschema.subject.anzsrcfor 090609 Signal Processing en_NZ
vuwschema.subject.anzsrcseo 970109 Expanding Knowledge in Engineering en_NZ
vuwschema.type.vuw Awarded Doctoral Thesis en_NZ
thesis.degree.discipline Electronic and Computer System Engineering en_NZ
thesis.degree.grantor Te Herenga Waka—Victoria University of Wellington en_NZ
thesis.degree.level Doctoral en_NZ
thesis.degree.name Doctor of Philosophy en_NZ

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