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K. Tsutsumi, Y. Haneda, K. Noguchi, and H. Takada, "A Method to Reproduce a Directional Sound Source by Using a Circular Array of Focused Sources in Front of a Linear Loudspeaker Array," Paper 9978, (2018 May.). doi: K. Tsutsumi, Y. Haneda, K. Noguchi, and H. Takada, "A Method to Reproduce a Directional Sound Source by Using a Circular Array of Focused Sources in Front of a Linear Loudspeaker Array," Paper 9978, (2018 May.). doi:
Abstract: We propose a method to create a directional sound source in front of a linear loudspeaker array. The method creates a virtual circular loudspeaker array comprising multiple focused sources to reproduce directivity patterns. In the proposed method, the driving functions for the secondary sources are defined as a cascade combination of two driving functions: The first one for directivity control derived by an analytical conversion of circular harmonic modes, and the second one for creating focused sources. The proposed driving functions can deal with directivity rotation by changing the position of focused sources, thereby avoiding recalculations of driving functions. Using computer simulation, we obtained accuracy and algorithmic complexity comparable or better than those of a conventional method.

@article{tsutsumi2018a,
author={tsutsumi, kimitaka and haneda, yoichi and noguchi, ken'ichi and takada, hideaki},
journal={journal of the audio engineering society},
title={a method to reproduce a directional sound source by using a circular array of focused sources in front of a linear loudspeaker array},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},} @article{tsutsumi2018a,
author={tsutsumi, kimitaka and haneda, yoichi and noguchi, ken'ichi and takada, hideaki},
journal={journal of the audio engineering society},
title={a method to reproduce a directional sound source by using a circular array of focused sources in front of a linear loudspeaker array},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={we propose a method to create a directional sound source in front of a linear loudspeaker array. the method creates a virtual circular loudspeaker array comprising multiple focused sources to reproduce directivity patterns. in the proposed method, the driving functions for the secondary sources are defined as a cascade combination of two driving functions: the first one for directivity control derived by an analytical conversion of circular harmonic modes, and the second one for creating focused sources. the proposed driving functions can deal with directivity rotation by changing the position of focused sources, thereby avoiding recalculations of driving functions. using computer simulation, we obtained accuracy and algorithmic complexity comparable or better than those of a conventional method.},}

TY - paper
TI - A Method to Reproduce a Directional Sound Source by Using a Circular Array of Focused Sources in Front of a Linear Loudspeaker Array
SP - EP -
AU - Tsutsumi, Kimitaka
AU - Haneda, Yoichi
AU - Noguchi, Ken'ichi
AU - Takada, Hideaki
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018 TY - paper
TI - A Method to Reproduce a Directional Sound Source by Using a Circular Array of Focused Sources in Front of a Linear Loudspeaker Array
SP - EP -
AU - Tsutsumi, Kimitaka
AU - Haneda, Yoichi
AU - Noguchi, Ken'ichi
AU - Takada, Hideaki
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018
AB - We propose a method to create a directional sound source in front of a linear loudspeaker array. The method creates a virtual circular loudspeaker array comprising multiple focused sources to reproduce directivity patterns. In the proposed method, the driving functions for the secondary sources are defined as a cascade combination of two driving functions: The first one for directivity control derived by an analytical conversion of circular harmonic modes, and the second one for creating focused sources. The proposed driving functions can deal with directivity rotation by changing the position of focused sources, thereby avoiding recalculations of driving functions. Using computer simulation, we obtained accuracy and algorithmic complexity comparable or better than those of a conventional method.