Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jacob Chia-chun Liu"'
Autor:
Jacob Chia-chun Liu, 劉嘉俊
98
The propagation of sound in long enclosures with branches has been studied theoretically and experimentally, and an efficient combined method is proposed to predict the sound field in long enclosures with branches. Based on the wave-acoustics
The propagation of sound in long enclosures with branches has been studied theoretically and experimentally, and an efficient combined method is proposed to predict the sound field in long enclosures with branches. Based on the wave-acoustics
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/69216065876468777257
Publikováno v:
The Journal of the Acoustical Society of America. 144:3211-3220
© 2018 Acoustical Society of America. This paper utilizes a rigid spherical microphone array to reduce wind noise. In the experiments conducted, a loudspeaker is used to reproduce the desired sound signal and an axial fan is employed to generate win
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60f323c9afe209088b5ed6732d35e7de
https://doi.org/10.1121/1.5082290
https://doi.org/10.1121/1.5082290
Publikováno v:
The Journal of the Acoustical Society of America. 142:2454-2463
© 2017 Acoustical Society of America. This paper investigates the wind noise reduction mechanism of porous microphone windscreens. The pressure fluctuations inside the porous windscreens with various viscous and inertial coefficients are studied wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::470320be0778366164026044442fb8e5
https://doi.org/10.1121/1.5008860
https://doi.org/10.1121/1.5008860
Publikováno v:
The Journal of the Acoustical Society of America. 140:4178-4182
© 2016 Acoustical Society of America. Based on existing studies that provide the pressure spectra in turbulent flows from the asymptotic pressure structure function in the inertial range, this paper extends the pressure spectrum to the dissipation r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05d71686c59d2530a342be2a096f59c7
https://doi.org/10.1121/1.4968881
https://doi.org/10.1121/1.4968881
Publikováno v:
The Journal of the Acoustical Society of America. 143(1)
© 2018 Acoustical Society of America. This paper explores the wind noise reduction mechanism of porous microphone windscreens by investigating the spatial correlation of wind noise. First, the spatial structure of the wind noise signal is studied by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9615c7b435cb5c0ff67ea500a00eeeb4
https://pubmed.ncbi.nlm.nih.gov/29390783
https://pubmed.ncbi.nlm.nih.gov/29390783
Publikováno v:
The Journal of the Acoustical Society of America. 142(5)
© 2017 Acoustical Society of America. Wind noise spectra caused by wind from fans in indoor environments have been found to be different from those measured in outdoor atmospheric conditions. Although many models have been developed to predict outdo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c174e63f243f60f0b7ae70718a26967
https://pubmed.ncbi.nlm.nih.gov/29195464
https://pubmed.ncbi.nlm.nih.gov/29195464
Autor:
Po-Chien Lu, Jacob Chia-chun Liu
Publikováno v:
Applied Acoustics. 71:306-314
The propagation of sound in long enclosures with branches has been studied theoretically and experimentally, and an efficient combined method is proposed to predict the sound field in long enclosures with branches. Based on the wave-acoustics theory,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca1869ca448f3eab26aea4db6b6d2136
https://doi.org/10.1016/j.apacoust.2009.11.002
https://doi.org/10.1016/j.apacoust.2009.11.002
Autor:
Jacob Chia-chun Liu, Po-Chien Lu
Publikováno v:
Applied Acoustics. 70:894-901
Since the classical room acoustics can not be used for long enclosures due to the inhomogeneous sound field, much work has been carried out recently to investigate the sound propagation in long enclosures, which are helpful to the acoustic design of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a984d213b366ad730900f0bdd2d1ce7
https://doi.org/10.1016/j.apacoust.2008.10.008
https://doi.org/10.1016/j.apacoust.2008.10.008
Autor:
Po-Chien Lu, Jacob Chia-chun Liu
Publikováno v:
Applied Acoustics. 70:522-529
As there may be some branches in long enclosures, such as high-speed railway and freeway tunnels, it will make a difference in the sound propagation in long enclosures if we give more consideration to different designs of the branches at the onset of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::527f3db3f59b0df95da2ffea933315ef
https://doi.org/10.1016/j.apacoust.2008.05.010
https://doi.org/10.1016/j.apacoust.2008.05.010
Autor:
Feng Niu, Jacob Chia-chun Liu
Publikováno v:
Applied Acoustics. 69:728-732
It is feasible to enhance the effect of reduction of the noise barrier on low frequency noise using the active control system. On the basis of the forerunners’ research, an analogy feedback active control system that is easy to be carried out was a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::935b54d44d512c1ebad487a3304a0d4c
https://doi.org/10.1016/j.apacoust.2007.02.008
https://doi.org/10.1016/j.apacoust.2007.02.008