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Real-time Microphone Array Processing for Sound-field Analysis and Perceptually Motivated Reproduction

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Delikaris-Manias, Symeon
dc.contributor.author McCormack, Leo
dc.date.accessioned 2017-12-18T11:39:53Z
dc.date.available 2017-12-18T11:39:53Z
dc.date.issued 2017-12-11
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/29086
dc.description.abstract This thesis details real-time implementations of sound-field analysis and perceptually motivated reproduction methods for visualisation and auralisation purposes. For the former, various methods for visualising the relative distribution of sound energy from one point in space are investigated and contrasted; including a novel reformulation of the cross-pattern coherence (CroPaC) algorithm, which integrates a new side-lobe suppression technique. Whereas for auralisation applications, listening tests were conducted to compare ambisonics reproduction with a novel headphone formulation of the directional audio coding (DirAC) method. The results indicate that the side-lobe suppressed CroPaC method offers greater spatial selectivity in reverberant conditions compared with other popular approaches, and that the new DirAC formulation yields higher perceived spatial accuracy when compared to the ambisonics method. en
dc.format.extent 7+54
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Real-time Microphone Array Processing for Sound-field Analysis and Perceptually Motivated Reproduction en
dc.type G2 Pro gradu, diplomityö fi
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.subject.keyword spatial audio en
dc.subject.keyword microphone arrays en
dc.subject.keyword sound-field analysis en
dc.subject.keyword sound-field reproduction en
dc.subject.keyword directional audio coding en
dc.subject.keyword time-frequency domain processing en
dc.identifier.urn URN:NBN:fi:aalto-201712187884
dc.programme.major Acoustics and Audio Technology fi
dc.programme.mcode ELEC3030 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Pulkki, Ville
dc.programme CCIS - Master’s Programme in Computer, Communication and Information Sciences (TS2013) fi
dc.ethesisid Aalto 9673
dc.location P1 fi

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