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S. Yazawa, H. Itou, K. Noguchi, K. Kobayashi, and N. Harada, "Spherical Microphone Array Shape to Improve Beamforming Performance," Paper 10228, (2019 October.). doi: S. Yazawa, H. Itou, K. Noguchi, K. Kobayashi, and N. Harada, "Spherical Microphone Array Shape to Improve Beamforming Performance," Paper 10228, (2019 October.). doi:
Abstract: A 360-degree steerable super-directional beamforming are proposed. We designed a new acoustic baffle for spherical microphone array to achieve both small size and high performance. The shape of baffle is a sphere with parabola-like depressions; therefore, sound-collection performance can be enhanced using reflection and diffraction. We first evaluated its beamforming performance through simulation then fabricated a 3D prototype of an acoustic baffle microphone array with the proposed baffle shape and compared its performance to that of a conventional spherical 3D acoustic baffle. This prototype exhibited better beamforming performance. We built microphone array system that includes the proposed acoustic baffle and a 360-degree camera, our system can pick up match sound to an image in a specific direction in real-time or after recording. We have received high marks from users who experienced the system demo.

@article{yazawa2019spherical,
author={yazawa, sakurako and itou, hiroaki and noguchi, ken’ichi and kobayashi, kazunori and harada, noboru},
journal={journal of the audio engineering society},
title={spherical microphone array shape to improve beamforming performance},
year={2019},
volume={},
number={},
pages={},
doi={},
month={october},} @article{yazawa2019spherical,
author={yazawa, sakurako and itou, hiroaki and noguchi, ken’ichi and kobayashi, kazunori and harada, noboru},
journal={journal of the audio engineering society},
title={spherical microphone array shape to improve beamforming performance},
year={2019},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={a 360-degree steerable super-directional beamforming are proposed. we designed a new acoustic baffle for spherical microphone array to achieve both small size and high performance. the shape of baffle is a sphere with parabola-like depressions; therefore, sound-collection performance can be enhanced using reflection and diffraction. we first evaluated its beamforming performance through simulation then fabricated a 3d prototype of an acoustic baffle microphone array with the proposed baffle shape and compared its performance to that of a conventional spherical 3d acoustic baffle. this prototype exhibited better beamforming performance. we built microphone array system that includes the proposed acoustic baffle and a 360-degree camera, our system can pick up match sound to an image in a specific direction in real-time or after recording. we have received high marks from users who experienced the system demo.},}

TY - paper
TI - Spherical Microphone Array Shape to Improve Beamforming Performance
SP - EP -
AU - Yazawa, Sakurako
AU - Itou, Hiroaki
AU - Noguchi, Ken’ichi
AU - Kobayashi, Kazunori
AU - Harada, Noboru
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2019 TY - paper
TI - Spherical Microphone Array Shape to Improve Beamforming Performance
SP - EP -
AU - Yazawa, Sakurako
AU - Itou, Hiroaki
AU - Noguchi, Ken’ichi
AU - Kobayashi, Kazunori
AU - Harada, Noboru
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2019
AB - A 360-degree steerable super-directional beamforming are proposed. We designed a new acoustic baffle for spherical microphone array to achieve both small size and high performance. The shape of baffle is a sphere with parabola-like depressions; therefore, sound-collection performance can be enhanced using reflection and diffraction. We first evaluated its beamforming performance through simulation then fabricated a 3D prototype of an acoustic baffle microphone array with the proposed baffle shape and compared its performance to that of a conventional spherical 3D acoustic baffle. This prototype exhibited better beamforming performance. We built microphone array system that includes the proposed acoustic baffle and a 360-degree camera, our system can pick up match sound to an image in a specific direction in real-time or after recording. We have received high marks from users who experienced the system demo.