The Sound Field
An investigation of the sound field above a surface with periodic roughness
... audio-frequency sound is incident near grazing on acoustically-hard surfaces with periodic sub-wavelength roughness air-borne acoustic surface waves are generated which could be used to amplify acoustic signals ...
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Distribution of sound pressure around a singing cricket: radiation pattern and asymmetry in the sound field
... Red dashed line indicates predicted radiation pattern of a free piston and is angled to be at 90o from the wing angle in line with the observed values; blue dashed line indicates wing [r] ...
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Distribution of sound pressure around a singing cricket : radiation pattern and asymmetry in the sound field
... higher amplitude underlying left wing may have a reduced effect on sound pressure projection from 364. the right-wing coverage[r] ...
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An Investigation of the Sound Field Above a Surface With Periodically-Spaced Roughness
... 55 arrivals of interest, such as the surface wave. Therefore, the choice of window varies depending on the signal. A commonly used window is the rectangular window. However, according to the Fourier principle, a signal ...
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Sound-field parameter
... the sound field in listening rooms is influenced by a variety of ...single sound source in a concert hall, the listening experience from the reproduced sound will be characterized by an ...
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Spatial Sound Impression and Precise Localization by Psychoacoustic Sound Field Synthesis
... the sound propagation from each loud- speaker to each listening ...the sound field at one listening point is very similar and thus the rows of the linear equation system are not in- dependent of one ...
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A theoretical study of sound field reconstruction techniques
... a sound field is a problem studied within different branches of ...Wave Field Synthesis is derived, and finally a method based on the generalised Fourier transform [3], which constitutes the basis ...
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The Ambient Sound Field in Three Freshwater Environments
... ambient sound field in three clear-water wetlands: Lake Leschenaultia, Glen Brook Dam and Blue Gum Lake in Perth, Western Australia and to determine if there were temporal and spatial differences in the ...
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Analysis of a sound field in a room using dictionary learning
... Keywords: Sound Field Reconstruction, Room Acoustics, Dictionary Learning 1 INTRODUCTION Sound field reconstruction techniques often rely on the use of basis functions to represent ...
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Effects of spatial elements and sound sources on sound field in Main Hall of Chinese Buddhist temple
... indoor sound field; a lack of related research, such that no standard acoustic parameters of materials in ancient Chinese architecture could been used for reference; and those ancient building materials, ...
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GUIDELINES ON THE ACOUSTICS OF SOUND FIELD AUDIOMETRY IN CLINICAL AUDIOLOGICAL APPLICATIONS
... the sound field in a typical paediatric test room is best described as “quasi-free”, at least in the area around the reference ...consistent sound levels at the reference ...a sound ...
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ANALOGIES AND DIFFERENCES BETWEEN THREE METHODS FOR SOUND FIELD REPRODUCTION
... sound field. The first method is based on the decomposition of the sound field in terms of spherical harmonics (as High Order Ambisonics), the second method is derived from the ...
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Virtual Reality System with Integrated Sound Field Simulation and Reproduction
... The orientation of the user’s head in the sound field is very critical as reflections have to be calculated for the head- related impulse response in listener’s coordinates. The chang- ing ITD of the HRTFs ...
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Low Frequency Sound Field Reconstruction in Non-rectangular Room: A Numerical Validation
... the sound field using CS yields highly accurate ...of sound pressure, we can confirm that the algorithm not only performs well on a few interpolated positions but it is also capable of reconstructing ...
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Numerical Method to Calculate Low Frequency Sound Field in Non anechoic Pools
... low-frequency sound field calculation in non-anechoic pools with impedance boundary based on finite element software ACTRAN is proposed in this ...the sound field boundary of non-anechoic ...
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Courtyard sound field characteristics by bell sounds in Han Chinese Buddhist temples
... small sound absorption coefficients. In the sound field simulation model, the sound absorption coefficients of temple courtyard walls at various frequency bands were set in the range of ...its ...
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The action of a sound field on colloids
... The effect of high frequency sound waves on colloicls is investigated experimentally by observing the behavioux• of the pattern produced by the diffraction of lig[r] ...
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15 Multichannel Sound Field Rendering
... in 1950s, its theoretical framework was initially put forward by Berkhout [3]. A recent overview is also documented in a handbook [5]. The fundamental concept of these two frameworks is based on Huygens’ principle. This ...
Sound Field Synthesis for Audio Presentation
... for sound field synthe- sis with a focus on the presentation of audio content to human ...a sound field can be ...define sound field synthesis as the problem of driving a given ...
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Sound Field Analysis Based on Analytical Beamforming
... the sound field component coming from a partic- ular incidence direction, but the criterion implemented to achieve this objective is evaluated on a continuous set of in- cidence directions spanning the whole solid ...
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