Evaluation of spatial impression of sound field in a concert hall based on the sound intensity using musical sounds

2016 ◽  
Vol 140 (4) ◽  
pp. 3128-3128
Author(s):  
Toshiki Hanyu ◽  
Akiho Matsuo ◽  
Kazuma Hoshi
Keyword(s):  
Sound Field ◽  
Sound Intensity ◽  
Concert Hall ◽  
Musical Sounds

Investigation of wind and sound field characteristics of multi-rotor unmanned aerial vehicle

2020 ◽  
Vol 51 (7-9) ◽  
pp. 158-163
Author(s):  
Huiru Cao ◽  
Haixiu Cheng ◽  
Wenjian Zhu
Keyword(s):  
Linear Relationship ◽  
Unmanned Aerial Vehicle ◽  
Wind Field ◽  
Sound Field ◽  
Sound Intensity ◽  
Experimental Platform ◽  
Distance Range ◽  
Aerial Vehicle ◽  
Set Up ◽  
Wind Intensity

Wind field and sound field characteristics are the key indexes for unmanned aerial vehicle. Therefore, in this study, the wind field and sound field characteristics of a quad-rotor unmanned aerial vehicle are investigated. First, the experimental platform was set up based on quad-rotor unmanned aerial vehicle. Second, the experiments were performed on the wind field and the sound field characteristics of the unmanned aerial vehicle at different working currents. Then, the experiment results were analysed. Meanwhile, the experimental results showed that the working current has a large impact on the wind field and the wind intensity increases as working current increases; as the working current increases, the sound field is enhanced and a linear relationship exists; within a certain distance range of the unmanned aerial vehicle, as distance increases, sound intensity dramatically decreases. The presented methods and results can not only be used to evaluate the performance of the electric multi-rotor unmanned aerial vehicle but also provide references for the further improvement of the performance of the unmanned aerial vehicle.

Prediction of subjective properties of a sound field in a concert hall with tenth‐scale model

1999 ◽  
Vol 105 (2) ◽  
pp. 1197-1197
Author(s):  
Koji Ishida ◽  
Kiyoshi Sugino ◽  
Hideki Tachibana
Keyword(s):  
Sound Field ◽  
Scale Model ◽  
Concert Hall

scholarly journals Sound Radiation from an Elastically Restrained Plate Covered by an Acoustic Decoupling Layer

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Gang Wang ◽  
Wan-You Li ◽  
Wen Long Li ◽  
Jingtao Du
Keyword(s):  
Sound Radiation ◽  
Sound Field ◽  
Sound Intensity ◽  
Parametric Modeling ◽  
Model Studies ◽  
Coupling System ◽  
Ritz Procedure ◽  
Reduction Effect ◽  
Elastically Restrained ◽  
Sound Reduction

The sound radiation from elastically restrained plates covered by a decoupling layer is studied using the Spectrogeometric Method (SGM), which is a meshless and parametric modeling technique. By adopting the Rayleigh-Ritz procedure and the Rayleigh integral, a vibroacoustic coupling system is established. This model studies the situation when the plate is immersed in heavy fluid, such as water, in which the strong coupling between the structure and sound field should be fully considered. The influence of the boundary conditions on the radiated sound power and sound reduction provided by the decoupling layer based on the locally reacting model is studied. The nonuniform distributed decoupling layer is also studied to analyze the sound reduction effect. The sound intensity on the outer surface of the decoupling layer is investigated and tends to be uniform along the plate scale with increasing thickness of the decoupling layer.

A Consideration on Acoustic Properties on Concert-Hall Stages

2011 ◽  
Vol 18 (3-4) ◽  
pp. 221-235
Author(s):  
Kanako Ueno ◽  
Hideki Tachibana
Keyword(s):  
Future Study ◽  
Experimental Studies ◽  
Three Dimensional ◽  
Sound Field ◽  
Acoustic Properties ◽  
Concert Hall ◽  
Field Simulation ◽  
Experimental Findings ◽  
Acoustic Conditions ◽  
The Relationship

This paper discusses acoustic properties that musicians experience on a concert hall stage; the discussion is based on the authors' experience gained from conducting experimental studies using a three-dimensional sound field simulation technique. First, the experimental findings on the relationship between the acoustic requirements of musicians and acoustic conditions such as early reflection and reverberation are reviewed. Second, the validity and problems of stage acoustic indices STearly, STlate, and EEL are addressed. In addition, unsolved issues with regard to musicians' requirements during their performance are considered and problems requiring future study are pointed out.

Objective and perceptual assessment of the scattered sound field in a simulated concert hall

2015 ◽  
Vol 138 (3) ◽  
pp. 1485-1497 ◽  
Author(s):  
Louena Shtrepi ◽  
Arianna Astolfi ◽  
Sönke Pelzer ◽  
Renzo Vitale ◽  
Monika Rychtáriková
Keyword(s):  
Sound Field ◽  
Concert Hall ◽  
Perceptual Assessment

Sound field modeling and simulation of a concert hall

1988 ◽  
Vol 83 (S1) ◽  
pp. S50-S50
Author(s):  
T. Hidaka ◽  
K. Kageyama ◽  
S. Masuda
Keyword(s):  
Modeling And Simulation ◽  
Sound Field ◽  
Concert Hall ◽  
Field Modeling
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