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K. Wakayama, and H. Takada, "Spatial Multi-Zone Sound Field Reproduction Using Higher-Order Loudspeakers in Reverberant Rooms," Paper 9560, (2016 May.). doi: K. Wakayama, and H. Takada, "Spatial Multi-Zone Sound Field Reproduction Using Higher-Order Loudspeakers in Reverberant Rooms," Paper 9560, (2016 May.). doi:
Abstract: We propose a method for reproducing multi-zone sound fields in a reverberant room using an array of higher-order loudspeakers. This method enables sparse arrangement of loudspeakers and reproduction of independent sound fields for multiple listeners without the need for headphones. For multi-zone reproduction, global sound field coefficients are obtained using translation operator. By using the coefficient of the room transfer function measured or simulated with an extension of the image-source method, the loudspeakers’ coefficients are then calculated with the minimum norm method in the cylindrical harmonic domain. From experiments of two-zone and three-zone examples, we show that there was a 2N + 1-fold decrease in the number of Nth-order loudspeakers for accurate reproduction with the proposed method compared to conventional methods.

@article{wakayama2016spatial,
author={wakayama, keigo and takada, hideaki},
journal={journal of the audio engineering society},
title={spatial multi-zone sound field reproduction using higher-order loudspeakers in reverberant rooms},
year={2016},
volume={},
number={},
pages={},
doi={},
month={may},} @article{wakayama2016spatial,
author={wakayama, keigo and takada, hideaki},
journal={journal of the audio engineering society},
title={spatial multi-zone sound field reproduction using higher-order loudspeakers in reverberant rooms},
year={2016},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={we propose a method for reproducing multi-zone sound fields in a reverberant room using an array of higher-order loudspeakers. this method enables sparse arrangement of loudspeakers and reproduction of independent sound fields for multiple listeners without the need for headphones. for multi-zone reproduction, global sound field coefficients are obtained using translation operator. by using the coefficient of the room transfer function measured or simulated with an extension of the image-source method, the loudspeakers’ coefficients are then calculated with the minimum norm method in the cylindrical harmonic domain. from experiments of two-zone and three-zone examples, we show that there was a 2n + 1-fold decrease in the number of nth-order loudspeakers for accurate reproduction with the proposed method compared to conventional methods.},}

TY - paper
TI - Spatial Multi-Zone Sound Field Reproduction Using Higher-Order Loudspeakers in Reverberant Rooms
SP - EP -
AU - Wakayama, Keigo
AU - Takada, Hideaki
PY - 2016
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2016 TY - paper
TI - Spatial Multi-Zone Sound Field Reproduction Using Higher-Order Loudspeakers in Reverberant Rooms
SP - EP -
AU - Wakayama, Keigo
AU - Takada, Hideaki
PY - 2016
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2016
AB - We propose a method for reproducing multi-zone sound fields in a reverberant room using an array of higher-order loudspeakers. This method enables sparse arrangement of loudspeakers and reproduction of independent sound fields for multiple listeners without the need for headphones. For multi-zone reproduction, global sound field coefficients are obtained using translation operator. By using the coefficient of the room transfer function measured or simulated with an extension of the image-source method, the loudspeakers’ coefficients are then calculated with the minimum norm method in the cylindrical harmonic domain. From experiments of two-zone and three-zone examples, we show that there was a 2N + 1-fold decrease in the number of Nth-order loudspeakers for accurate reproduction with the proposed method compared to conventional methods.