Publications related to Sound intensity

Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Hervé Lissek, Xavier Falourd, Patrick Marmaroli

Usually acoustic beamformer or directive microphones are used in order to focus on known potential locations emitting sounds so as to identify and extract their major noise components. However performances of these techniques depend on the number of microp ...

2009

Acoustic tomography for scalar and vector fields: theory and application to temperature and wind estimation

Martin Vetterli, Luciano Sbaiz, Ivana Jovanovic

Acoustic tomography is a type of inverse problem. The idea of estimating physical quantities that influence sound propagation by measuring the parameters of propagation has proven to be successful in many practical domains, including temperature and wind e ...

2009

Spatio-Temporal Gradient Analysis of Differential Microphone Arrays

Martin Vetterli, Mihailo Kolundzija, Christof Faller

The literature on gradient and differential microphone arrays makes a distinction between the two types, and nevertheless shows how both types can be used to obtain the same directional responses. A more theoretically sound rationale for using delays in di ...

2009

Wave field coding in the spacetime frequency domain

Martin Vetterli, Francisco Pereira Correia Pinto

We present a new method for compressing spatio-temporal audio data for reproduction through Wave Field Synthesis. The data is obtained by sampling the sound field in space at equally-spaced points on a straight line, and transformed into the frequency doma ...

2008

Structural and acoustic behavior of chiral truss-core beams

Alessandro Spadoni

This paper analyzes the structural and acoustic behavior of sandwich beams with a chiral truss-core. This particular core configuration is considered to exploit some of the unique properties of the chiral geometry and to explore their potential benefits in ...

American Society of Mechanical Engineers2006

The Plenacoustic Function and its Sampling

Martin Vetterli, Luciano Sbaiz, Thibaut Ajdler

The spatialization of the sound field in a room is studied, in particular the evolution of room impulse responses as a function of their spatial positions. It was observed that the multidimensional spectrum of the solution of the wave equation has an almos ...

2006

Spatio-Temporal Sampling and Distributed Compression of the Sound Field

Martin Vetterli, Emre Telatar, Luciano Sbaiz, Olivier Roy, Thibaut Ajdler, Robert Konsbruck

We investigate how the sound field induced by an acoustic event evolves over space and time. The characteristics of its bidimensional Fourier spectrum are analyzed and spatio-temporal sampling results using an array of microphones are provided for differen ...

2006

Martin Vetterli, Christof Faller, Luciano Sbaiz, Thibaut Ajdler

We are proposing an interpolation technique for head related transfer functions (HRTFs). For deriving the algorithm we study the dual problem where sound is emitted from the listener’s ear and the generated sound field is recorded along a circular array of ...

2005

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Sound intensity

Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Acoustic tomography for scalar and vector fields: theory and application to temperature and wind estimation

Spatio-Temporal Gradient Analysis of Differential Microphone Arrays

Intensity statistics of Friedel opposites

Wave field coding in the spacetime frequency domain

Outdoor Sound Propagation Reference Model Developed in the European Harmonoise Project

Structural and acoustic behavior of chiral truss-core beams

The Plenacoustic Function and its Sampling

Spatio-Temporal Sampling and Distributed Compression of the Sound Field

Head Related Transfer Functions Interpolation Considering Acoustics

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Intensity statistics of Friedel opposites

Spatio-Temporal Sampling and Distributed Compression of the Sound Field

Outdoor Sound Propagation Reference Model Developed in the European Harmonoise Project

Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Acoustic tomography for scalar and vector fields: theory and application to temperature and wind estimation

Head Related Transfer Functions Interpolation Considering Acoustics

Spatio-Temporal Gradient Analysis of Differential Microphone Arrays

Wave field coding in the spacetime frequency domain

Structural and acoustic behavior of chiral truss-core beams

The Plenacoustic Function and its Sampling