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SIMO-Model-Based Blind Acoustic Signal Separation: Concept and Its Application

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dc.contributor.author Hiroshi Saruwatari en
dc.contributor.author Tomoya Takatani en
dc.contributor.author Hiroaki Yamajo en
dc.contributor.author Kiyohiro Shikano en
dc.date.accessioned 2012-08-22T07:59:01Z en
dc.date.available 2012-08-22T07:59:01Z en
dc.date.issued 2004-01 en
dc.identifier.uri http://hdl.handle.net/10061/8259 en
dc.description Special Workshop in MAUI (SWIM), January 12-14, 2004, Maui, Hawaii, USA. en
dc.description.abstract In this paper, we describe a new framework of blind source separation (BSS), i.e., Single-Input Multiple-Output (SIMO)-model-based ICA (SIMO-ICA), and we discuss its applicability to acoustic signal processing. The term "SIMO" represents a specific transmission system in which the input is a single source signal and the outputs are its transmitted signals observed at multiple microphones. The SIMO-ICA consists of multiple ICAs and a fidelity controller, and each ICA runs in parallel under the fidelity control of the entire separation system. In the SIMO-ICA scenario, unknown multiple source signals which are mixed through unknown acoustical transmission channels are detected at the microphones, and these signals can be separated, not into monaural source signals but into SIMO-model-based signals from independent sources as they are at the microphones. Thus, the separated signals of the SIMO-ICA can maintain the spatial qualities of each sound source. This attractive feature of the SIMO-ICA shows the promise of applicability to many high-fidelity acoustic signal processing systems. As a good examples of SIMO-ICA's application, SIMO-ICA is applied to the extraction of the independent components from binaurally recorded signals. The experiment using a head-and-torso simulator shows that the separated SIMO signals succeed in maintaining the HRTF and spatial characteristics. en
dc.language.iso en en
dc.title SIMO-Model-Based Blind Acoustic Signal Separation: Concept and Its Application en
dc.type.nii Conference Paper en
dc.textversion Publisher en

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