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This letter introduces a database of Room Impulse Responses (RIRs) measured in seven different rooms for multizone sound field reproduction research in various acoustic environments. A circular array of 60 loudspeakers was installed in each room, with two microphone arrays placed sequentially in five different zones inside the loudspeaker array. A total of 260 400 RIRs were measured to establish the database. As a demonstration application of the database for multizone sound field reproduction, simulations were performed on the pressure matching and acoustic contrast control methods to investigate how a system optimized with the RIRs measured in one room would perform in other rooms.
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http://dx.doi.org/10.1121/10.0014958 | DOI Listing |
J Acoust Soc Am
March 2024
DVC and VP STEM College, RMIT University, Melbourne, Australia.
J Acoust Soc Am
January 2024
Technical Center for Ships and Naval Weapons, Maritime Technology and Research, Eckernförde 24340, Germany.
This manuscript presents a method for reproducing sound fields actively by using a vibrating submerged structure as the field reproduction source, with the target sound field to be reproduced defined in the frequency domain using the acoustic brightness approach. To balance the predetermination of a mono- or multi-zone target sound pressure field and the control effort required, singular value decomposition of the structural-acoustic system matrix is proposed. The dependency of the radiation efficiency into the target zone on the singular modes representing source and pressure modes is investigated using a wavenumber-domain approach.
View Article and Find Full Text PDFJ Acoust Soc Am
February 2023
Key Laboratory of Modern Acoustics (Ministry of Education), Nanjing University, Nanjing 210093, China.
The aim of multizone sound reproduction is to reproduce different sound programs to different spatial zones in a common space using a set of loudspeakers. Several multizone sound reproduction methods have been developed over the past few decades, and most of them assume that there are no listeners in the listening area. However, when listeners enter the listening area, the scattering effects will reduce the performance of the multizone sound reproduction system.
View Article and Find Full Text PDFJ Acoust Soc Am
October 2022
Faculty of Engineering and IT, Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Sydney, Australia.
This letter introduces a database of Room Impulse Responses (RIRs) measured in seven different rooms for multizone sound field reproduction research in various acoustic environments. A circular array of 60 loudspeakers was installed in each room, with two microphone arrays placed sequentially in five different zones inside the loudspeaker array. A total of 260 400 RIRs were measured to establish the database.
View Article and Find Full Text PDFJ Acoust Soc Am
April 2022
Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales, Australia.
Multizone sound field reproduction aims to generate personal sound zones in a shared space with multiple loudspeakers. Traditional multizone sound field reproduction methods have focused on optimizing the source strengths given a preset array configuration. Recently, however, various methods have explored optimization of the loudspeaker locations.
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