TY - GEN
T1 - Effect of handy microphone movement in mixed reality visualization system of sound intensity
AU - Kataoka, Yuta
AU - Teraoka, Wataru
AU - Oikawa, Yasuhiro
AU - Ikeda, Yusuke
N1 - Publisher Copyright:
© 2019 Proceedings of the International Congress on Acoustics. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - We have proposed a system of real-time measurement and visualization for three-dimensional (3D) sound field by using mixed reality (MR) device. MR device enables effective visualization with depth perception using the 3D computer graphics (3DCGs) superimposed on the real world. Our system can superimpose 3D sound intensity data on the measurement points in the see-through head mounted display (STHMD). It helps us not only to understand the sound field but also to design it, to detect the source of noise, etc. Sound intensities are measured by freely and slowly scanning the sound field with a handy 4-ch microphone array. However, the measurement results of sound intensity would be affected by assuming a moving microphone array as fixed one. In this paper, we investigate the effect of microphone movement on sound intensity. To clarify the maximum of handy microphone speed to be assumed, microphone speeds were measured in measurement of sound field by using our proposed MR visualization system. Then, simulation experiments in a plane wave and a spherical wave were conducted to compare the sound intensities by fixed and moving microphone array at different speeds.
AB - We have proposed a system of real-time measurement and visualization for three-dimensional (3D) sound field by using mixed reality (MR) device. MR device enables effective visualization with depth perception using the 3D computer graphics (3DCGs) superimposed on the real world. Our system can superimpose 3D sound intensity data on the measurement points in the see-through head mounted display (STHMD). It helps us not only to understand the sound field but also to design it, to detect the source of noise, etc. Sound intensities are measured by freely and slowly scanning the sound field with a handy 4-ch microphone array. However, the measurement results of sound intensity would be affected by assuming a moving microphone array as fixed one. In this paper, we investigate the effect of microphone movement on sound intensity. To clarify the maximum of handy microphone speed to be assumed, microphone speeds were measured in measurement of sound field by using our proposed MR visualization system. Then, simulation experiments in a plane wave and a spherical wave were conducted to compare the sound intensities by fixed and moving microphone array at different speeds.
KW - Acoustic imaging
KW - Augmented reality(AR)
KW - Doppler effect
KW - Mixed reality(MR)
KW - Sound intensity
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U2 - 10.18154/RWTH-CONV-239943
DO - 10.18154/RWTH-CONV-239943
M3 - Conference contribution
AN - SCOPUS:85099329249
T3 - Proceedings of the International Congress on Acoustics
SP - 4438
EP - 4445
BT - Proceedings of the 23rd International Congress on Acoustics
A2 - Ochmann, Martin
A2 - Michael, Vorlander
A2 - Fels, Janina
PB - International Commission for Acoustics (ICA)
T2 - 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019
Y2 - 9 September 2019 through 23 September 2019
ER -