The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam makalah ini, kami membentangkan kajian perbandingan mengenai sintesis muka gelombang terkawal berbilang titik (DMCWS) dan sintesis medan gelombang (WFS) sejajar terus untuk merealisasikan sistem pembiakan bunyi ketepatan tinggi, dan ciri amplitud, fasa dan pengecilan muka gelombang. yang dihasilkan oleh DMCWS dan WFS dinilai. Pertama, dalam kes DMCWS, kami memperoleh koordinat garis kawalan optimum berdasarkan analisis berangka. Seterusnya, hasil simulasi komputer mendedahkan bahawa muka gelombang dalam DMCWS mempunyai kebolehgunaan yang luas dalam kedua-dua domain spatial dan frekuensi dengan ralat amplitud dan fasa yang kecil, terutamanya di atas frekuensi aliasing spatial dalam WFS, dan kami menjelaskan bahawa ralat amplitud dalam DMCWS mempunyai persamaan yang sama. tingkah laku kepada ungkapan anggaran yang terkenal untuk pereputan ruang dalam WFS; ini membayangkan kemudahan untuk mengambil kira menganggar ralat amplitud dalam DMCWS. Akhir sekali, kami membangunkan sistem pengukuran muka gelombang dan mengukur muka gelombang DMCWS menggunakan sistem dan algoritma pengukuran muka gelombang kami. Hasil pengukuran menjelaskan ciri frekuensi pembesar suara. Selain itu, DMCWS mempunyai kebolehgunaan luas dalam domain frekuensi dalam persekitaran sebenar. Daripada penemuan ini, kami menyimpulkan kelebihan DMCWS berbanding dengan WFS.
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Salinan
Noriyoshi KAMADO, Haruhide HOKARI, Shoji SHIMADA, Hiroshi SARUWATARI, Kiyohiro SHIKANO, "Sound Field Reproduction by Wavefront Synthesis Using Directly Aligned Multi Point Control" in IEICE TRANSACTIONS on Fundamentals,
vol. E94-A, no. 3, pp. 907-920, March 2011, doi: 10.1587/transfun.E94.A.907.
Abstract: In this paper, we present a comparative study on directly aligned multi point controlled wavefront synthesis (DMCWS) and wave field synthesis (WFS) for the realization of a high-accuracy sound reproduction system, and the amplitude, phase and attenuation characteristics of the wavefronts generated by DMCWS and WFS are assessed. First, in the case of DMCWS, we derived an optimal control-line coordinate based on a numerical analysis. Next, the results of computer simulations revealed that the wavefront in DMCWS has wide applicability in both the spatial and frequency domains with small amplitude and phase errors, particularly above the spatial aliasing frequency in WFS, and we clarified that the amplitude error in DMCWS has similar behavior to the well-known approximate expression for spatial decay in WFS; this implies the ease of taking into account estimating the amplitude error in DMCWS. Finally, we developed wavefront measurement system and measured a DMCWS wavefront using our wavefront measurement system and algorithm. The results of measurements clarified the frequency characteristics of a loudspeaker. Also, DMCWS has wide applicability in frequency domains in actual environments. From these findings, we concluded the advantageousness of DMCWS compared with WFS.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E94.A.907/_p
Salinan
@ARTICLE{e94-a_3_907,
author={Noriyoshi KAMADO, Haruhide HOKARI, Shoji SHIMADA, Hiroshi SARUWATARI, Kiyohiro SHIKANO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Sound Field Reproduction by Wavefront Synthesis Using Directly Aligned Multi Point Control},
year={2011},
volume={E94-A},
number={3},
pages={907-920},
abstract={In this paper, we present a comparative study on directly aligned multi point controlled wavefront synthesis (DMCWS) and wave field synthesis (WFS) for the realization of a high-accuracy sound reproduction system, and the amplitude, phase and attenuation characteristics of the wavefronts generated by DMCWS and WFS are assessed. First, in the case of DMCWS, we derived an optimal control-line coordinate based on a numerical analysis. Next, the results of computer simulations revealed that the wavefront in DMCWS has wide applicability in both the spatial and frequency domains with small amplitude and phase errors, particularly above the spatial aliasing frequency in WFS, and we clarified that the amplitude error in DMCWS has similar behavior to the well-known approximate expression for spatial decay in WFS; this implies the ease of taking into account estimating the amplitude error in DMCWS. Finally, we developed wavefront measurement system and measured a DMCWS wavefront using our wavefront measurement system and algorithm. The results of measurements clarified the frequency characteristics of a loudspeaker. Also, DMCWS has wide applicability in frequency domains in actual environments. From these findings, we concluded the advantageousness of DMCWS compared with WFS.},
keywords={},
doi={10.1587/transfun.E94.A.907},
ISSN={1745-1337},
month={March},}
Salinan
TY - JOUR
TI - Sound Field Reproduction by Wavefront Synthesis Using Directly Aligned Multi Point Control
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 907
EP - 920
AU - Noriyoshi KAMADO
AU - Haruhide HOKARI
AU - Shoji SHIMADA
AU - Hiroshi SARUWATARI
AU - Kiyohiro SHIKANO
PY - 2011
DO - 10.1587/transfun.E94.A.907
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E94-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2011
AB - In this paper, we present a comparative study on directly aligned multi point controlled wavefront synthesis (DMCWS) and wave field synthesis (WFS) for the realization of a high-accuracy sound reproduction system, and the amplitude, phase and attenuation characteristics of the wavefronts generated by DMCWS and WFS are assessed. First, in the case of DMCWS, we derived an optimal control-line coordinate based on a numerical analysis. Next, the results of computer simulations revealed that the wavefront in DMCWS has wide applicability in both the spatial and frequency domains with small amplitude and phase errors, particularly above the spatial aliasing frequency in WFS, and we clarified that the amplitude error in DMCWS has similar behavior to the well-known approximate expression for spatial decay in WFS; this implies the ease of taking into account estimating the amplitude error in DMCWS. Finally, we developed wavefront measurement system and measured a DMCWS wavefront using our wavefront measurement system and algorithm. The results of measurements clarified the frequency characteristics of a loudspeaker. Also, DMCWS has wide applicability in frequency domains in actual environments. From these findings, we concluded the advantageousness of DMCWS compared with WFS.
ER -