Three-dimensional radiated sound field display system using directional loudspeakers and wave field synthesis

2012 ◽  
Vol 33 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Toshiyuki Kimura ◽  
Yoko Yamakata ◽  
Michiaki Katsumoto ◽  
Takuma Okamoto ◽  
Satoshi Yairi ◽  
...  
Keyword(s):  
Wave Field ◽  
Three Dimensional ◽  
Sound Field ◽  
Display System ◽  
Radiated Sound ◽  
Wave Field Synthesis

Performance Evaluation of 3D Sound Field Reproduction System with a Few Loudspeakers and Wave Field Synthesis

2008 ◽  
Vol 123 (5) ◽  
pp. 3651-3651 ◽  
Author(s):  
Munenori Naoe ◽  
Toshiyuki Kimura ◽  
Yoko Yamakata ◽  
Michiaki Katsumoto
Keyword(s):  
Performance Evaluation ◽  
Wave Field ◽  
Sound Field ◽  
Reproduction System ◽  
3D Sound ◽  
Wave Field Synthesis

Direct Calculation of Sound Radiated From Bodies in Nonuniform Flows

1993 ◽  
Vol 115 (4) ◽  
pp. 573-579 ◽  
Author(s):  
H. M. Atassi ◽  
J. Fang ◽  
S. Patrick
Keyword(s):  
Acoustic Pressure ◽  
Three Dimensional ◽  
Sound Field ◽  
Direct Calculation ◽  
Significant Rise ◽  
Mean Flow ◽  
Unsteady Pressure ◽  
Potential Part ◽  
The Mean ◽  
Radiated Sound

Sound radiated from a single airfoil and a cascade of airfoils in three-dimensional gusts is directly calculated. Euler’s equations are linearized about the mean flow of the airfoil or cascade. The velocity field is split into a vortical part and a potential part. The latter is governed by a single nonconstant-coefficient convective wave equation. For a single airfoil, the radiated sound is calculated using Kirchhoff’s method from the mid field of the unsteady pressure obtained through the unsteady aerodynamic solver. The results indicate the importance of the contribution of the quadrupole effects to the sound field. For a cascade of airfoils, the acoustic pressure is directly obtained by solving the partial differential equation. The results show that, as the maximum Mach number on the blade surface nears unity, there is a significant rise in the local unsteady pressure, and also a significant increase in the upstream acoustic pressure.

Theoretical Study of Near 3D Sound Field Reproduction Based on Wave Field Synthesis

2008 ◽  
Vol 123 (5) ◽  
pp. 3651-3651 ◽  
Author(s):  
Toshiyuki Kimura ◽  
Yoko Yamakata ◽  
Michiaki Katsumoto
Keyword(s):  
Wave Field ◽  
Theoretical Study ◽  
Sound Field ◽  
3D Sound ◽  
Wave Field Synthesis

scholarly journals Holophonic Sound in IRCAM's Concert Hall: Technological and Aesthetic Practices

2016 ◽  
Vol 40 (4) ◽  
pp. 14-34 ◽  
Author(s):  
Thibaut Carpentier ◽  
Natasha Barrett ◽  
Rama Gottfried ◽  
Markus Noisternig
Keyword(s):  
Wave Field ◽  
Computer Music ◽  
Sound Field ◽  
Higher Order ◽  
Software Architectures ◽  
Concert Hall ◽  
Design And Implementation ◽  
Spatial Composition ◽  
Wave Field Synthesis ◽  
Audio System

This article presents a report on technological and aesthetic practices in the variable-acoustics performance hall, Espace de Projection, at the Institut de Recherche et Coordination Acoustique/Musique. The hall is surrounded by a 350-loudspeaker array for sound-field reproduction using holophonic approaches such as wave-field synthesis and higher-order Ambisonics. First we present the design and implementation of the audio system and discuss the challenges of both hardware and software architectures. This is followed by a discussion of spatial composition techniques, aesthetic approaches, and methodologies for composing computer music for high-density loudspeaker arrays, explored through the paradigmatic examples of pieces produced by two artist-in-research residencies.

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