Results 261 to 270 of about 242,425 (301)

Diffraction Culling for Virtual-Acoustic Simulations

Acta Acustica united with Acustica, 2008
Acoustic simulations of complex virtual environments typically are created with geometrical-acoustics techniques. Such simulations can be augmented with edge diffraction modeling for improved accuracy, but not without a significant increase in processing time due to the additional propagation paths which must be considered and the computational ...
Paul Calamia, Benjamin Markham, U. Peter Svensson   +2 more
openaire   +1 more source

Electronic environmental acoustic simulator

The Journal of the Acoustical Society of America, 1983
Systems analysis approach to measure and to reconstruct the sound energy flux distribution characteristic of "live" situations. The present invention relates to a method of measurement of acoustical fields and the functional relationships in audio systems for enhancing the reproduction of sound.
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Simulating an acoustic recognizer

ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
In this paper we describe a speech recognition simulator whose input is phonemic transcriptions and which produces scores that simulate the scores generated by a real acoustic recognizer. We used a phonemic distance metric to approximate acoustic distances. A dynamic programming algorithm was used to find the optimum match between phoneme strings based
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Sound field simulation by computational acoustics. Part I: Simulation algorithm

International Journal of Adaptive Control and Signal Processing, 2000
The authors present a computational approach to the simulation of acoustic fields. The original problem is described by a set of partial differential equations (three for velocity components and one for the pressure). The key idea is to perform an adequate linear transform in order to decouple the differential operations along various spatial ...
Rabenstein, R., Zayati, A.
openaire   +2 more sources

Web-based geometric acoustic simulator

Proceedings of the 23rd International ACM Conference on 3D Web Technology, 2018
Geometric acoustics is one of the most commonly used techniques for exploring what a virtual environment sounds like. These methods allow the user to place a sound source and receiver in a space and compute how the space influences what the receiver hears. These simulation methods are well-known, but most are proprietary or difficult to implement.
Taylor, Micah, Meng, F.
openaire   +2 more sources

Simulation of acoustic fields of synphase electromagnetic-acoustic transducers

Russian Journal of Nondestructive Testing, 2013
A model of the formation of acoustic fields of a synphase EMA transducer of longitudinal and transverse waves in the form of a phased array of elements with a current is proposed. This model takes several parameters into account, such as the number and dimensions of individual elements of the array and its aperture, the operating frequency, and the gap
O. V. Murav’eva, A. V. Myshkin
openaire   +1 more source

Aeroelastic-Acoustics Numerical Simulation Research

Applied Mechanics and Materials, 2012
The generation of aerodynamic noise of aircraft in flight is due to dynamical system and aerodynamic .The response of aircraft subjected to High acoustic loads and aerodynamic loads can produce fatigue and damage. In this paper a new Aeroelastic- Acoustics which adds acoustic loads in aeroelastic is presented.
Xi Pei, Min Xu, Dong Guo
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Meshfree simulation of acoustic scattering

OCEANS 2019 - Marseille, 2019
In regard to acoustic scattering, finite element analysis is a popular tool to resolve acoustic scattering fields of considered objects. However, numerical results from finite element analysis would seriously suffer from the adverse influence of the well-known numerical pollution effect at high wavenumbers, leading to unreliable simulations of acoustic
Xiangyu You, Gui Qiang, Yingbin Chai, Wei Li   +3 more
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DAAD: architectural acoustic simulation software

Proceedings of the IEEE 12th Signal Processing and Communications Applications Conference, 2004., 2004
Details are presented of the DAAD (Dokuz Eylu/spl uml/l Architectural Acoustic Design Group) computer software, which provides a calculation of the acoustic parameters of rooms. The software is capable of modelling, at the receiver location, the characteristics of a sound emitted from a source; it uses the ray tracing method and calculates the acoustic
Ozgur, E, Ozis, F, ALPKOÇAK, ADİL
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Numerical Simulation of Acoustic Emission

Japanese Journal of Applied Physics, 1981
Acoustic Emission (AE) is useful for a real time monitoring of deformation and fracture processes in solid. For full utilization of the information contained in the wave form observed by an AE sensor placed on the surface, it is essential to understand transient wave propagation from a source to a sensor.
Morio Onoe, Jing Wen Tsao
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