講演抄録/キーワード |
講演名 |
2010-11-19 09:45
Sound reproduction based on multi-channel inverse filtering and WFS ○Noriyoshi Kamado・Hiroshi Saruwatari・Kiyohiro Shikano(NAIST) EA2010-93 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
For a reproduced sound field, the competing goals between the listening area and reproduction accuracy in an actual environment is one of the most important problems of sound field reproduction using loudspeakers.
In this paper, we propose a new method to balance these goals with absolute accuracy using an inverse filter of the room acoustics, the null-space of the generalized inverse matrix which is given by a compensation filter of the wave field outside of the control-point.
To develop the expression for the compensation filter, we use the loudspeaker driving function of wave field synthesis (WFS) instead of the filter of conventional studies.
By using the WFS, the proposed method overcomes the compensation limitation of auditory distance and azimuth perception outside of the control-point.
The results of computer simulations revealed that the proposed method balances these goals and has wide applicability in the spatial domain with high accuracy of reproduction for both free-field conditions and a simulation model with room reflection. |
キーワード |
(和) |
/ / / / / / / |
(英) |
Sound field reproduction / Multi-point control inverse filtering / Wave field synthesis / / / / / |
文献情報 |
信学技報, vol. 110, no. 285, EA2010-93, pp. 55-60, 2010年11月. |
資料番号 |
EA2010-93 |
発行日 |
2010-11-11 (EA) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
EA2010-93 |