NDLI: A study on 3-D Sound Field Localization System Using Parametric Loudspeaker and Indirect Loudspeakers for Reverberation Reproduction

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A study on 3-D Sound Field Localization System Using Parametric Loudspeaker and Indirect Loudspeakers for Reverberation Reproduction

Content Provider	Semantic Scholar
Author	Wada, Tomoyuki Ikefuji, Daisuke Nakayama, Masato Nishiura, Takanobu
Copyright Year	2014
Abstract	D sound field reproduction systems can provide listeners with a sense of presence. In this study, we have proposed the 3-D sound field localization system using parametric loudspeakers. This system can easily rep- resent sound images on the wall by using parametric loudspeakers that have a high directivity. In contrast, it is difficult to reproduce reverberant environments such as a concert hall because the parametric loudspeaker can hardly represent a reverberation. In the former system, therefore, we add the reverberation and control the reverberation time by using indirect electrodynamic loudspeakers. However, it can imperfectly repro- duce reverberant environments because the reverberant characteristic is not only the reverberation time. In this paper, we newly propose the 3-D sound field localization system using the parametric loudspeaker and indirect electrodynamic loudspeakers for the reverberation reproduction. Specifically, in the reverberation reproduction, we design inverse filters of transfer functions between listening points and indirect electrody- namic loudspeakers. Then, we reproduce the desired reverberant environment by emitting signals convoluted with inverse filters and the impulse response in the desired sound field from indirect electrodynamic loud- speakers. As a result of the objective experiment on the performance of the sound image localization and the reproducibility of the reverberation, we confirmed the effectiveness of the proposed system.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/papers/p418.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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