Curving sound field reproduction in free field

Zhao, S, Qiu, X and Lu, J 2014, 'Curving sound field reproduction in free field', in Malcolm J. Crocker, Marek Pawelczyk, Jing Tian (ed.) Proceedings of the 21st International Congress on Sound and Vibration, Beijing, China, 13-17 July 2014, pp. 1-8.


Document type: Conference Paper
Collection: Conference Papers

Title Curving sound field reproduction in free field
Author(s) Zhao, S
Qiu, X
Lu, J
Year 2014
Conference name ICSV21
Conference location Beijing, China
Conference dates 13-17 July 2014
Proceedings title Proceedings of the 21st International Congress on Sound and Vibration
Editor(s) Malcolm J. Crocker, Marek Pawelczyk, Jing Tian
Publisher International Institute of Acoustics and Vibration (IIAV)
Place of publication Alabama, United States
Start page 1
End page 8
Total pages 8
Abstract Curving sound field reproduction refers to recreating sound propagating along a curving tra-jectory without disturbing the other side. This kind of sound could bypass the obstacle to reach the region behind the obstacle, which is difficult for conventional sound field reproduc-tion system. Curving sound field reproduction can find applications in various situations, for example, speech signal could be delivered to a person without disturbing another person in front of him/her. This paper investigates the mechanisms for generating sound field based on the wave equation and the spatial sampling theory and the method of using linear loudspeaker arrays to generate such a sound field. A method based on ray acoustics to determine the loud-speaker weights is proposed and the simulation results are in good agreement with the theory. Extension to wideband situation of the method is also investigated and proved to be effective in a broad range of frequencies covering the human speech signal spectrum from 300 Hz to 3400 Hz.
Subjects Signal Processing
Copyright notice © International Institute of Acoustics and Vibration (IIAV), 2014
ISBN 9786165516822
Versions
Version Filter Type
Access Statistics: 108 Abstract Views  -  Detailed Statistics
Created: Wed, 28 Jan 2015, 10:59:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us