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dc.contributor.authorChakraborty, Rupayan
dc.contributor.authorNadeu Camprubí, Climent
dc.contributor.authorButko, Taras
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationChakraborty , R.; Nadeu, C.; Butko, T. Source ambiguity resolution of overlapped sounds in a multi-microphone room environment. "Eurasip journal on audio, speech, and music processing", Abril 2014, vol. 2014, núm. 18, p. 1-8.
dc.description.abstractWhen several acoustic sources are simultaneously active in a meeting room scenario, and both the position of the sources and the identity of the time-overlapped sound classes have been estimated, the problem of assigning each source position to one of the sound classes still remains. This problem is found in the real-time system implemented in our smart-room, where it is assumed that up to two acoustic events may overlap in time and the source positions are relatively well separated in space. The position assignment system proposed in this work is based on fusion of model-based log-likelihood ratios obtained after carrying out several different partial source separations in parallel. To perform the separation, frequency-invariant null-steering beamformers, which can work with a small number of microphones, are used. The experimental results using all the six microphone arrays deployed in the room show a high assignment rate in our particular scenario.
dc.format.extent8 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la parla i del senyal acústic
dc.subject.lcshSound -- Transmission
dc.subject.otherAcoustic event detection
dc.subject.otherFuzzy integral-based fusion
dc.subject.otherNull steering beamforming
dc.subject.otherSimultaneous sounds
dc.subject.otherSource position assignment
dc.titleSource ambiguity resolution of overlapped sounds in a multi-microphone room environment
dc.subject.lemacSo -- Transmissió
dc.contributor.groupUniversitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorChakraborty , R.; Nadeu, C.; Butko, T.
local.citation.publicationNameEurasip journal on audio, speech, and music processing

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