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- Centre National de la Recherche ScientifiqueFR237 papers
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5 papers · 2 filters
Acoustic characterization of Hofstadter butterfly with resonant scatterers
Olivier Richoux, Vincent Pagneux
We are interested in the experimental characterization of the Hofstadter butterfly by means of acoustical waves. The transmission of an acoustic pulse through an array of 60 variab…
Characterization by a time-frequency method of classical waves propagation in one-dimensional lattice : effects of the dispersion and localized nonlinearities
Olivier Richoux, Claude Depollier, Jean Hardy
This paper presents an application of time-frequency methods to characterize the dispersion of acoustic waves travelling in a one-dimensional periodic or disordered lattice made up…
Laser Doppler Velocimetry for Joint Measurements of Acoustic and Mean Flow Velocities : LMS-based Algorithm and CRB Calculation
Laurent Simon, Olivier Richoux, Anne Degroot +1
This paper presents a least mean square (LMS) algorithm for the joint estimation of acoustic and mean flow velocities from laser doppler velocimetry (LDV) measurements. The usual a…
Effect of the open roof on low frequency acoustic propagation in street canyons
Olivier Richoux, Ayrault Christophe, Adrien Pelat +2
This paper presents an experimental, numerical and analytical study of the effect of open roof on acoustic propagation along a 3D urban canyon. The experimental study is led by mea…
Synthèse sonore de la clarinette avec modèle de résonateur à trous latéraux optimisé sur des impédances d'entrée d'une clarinette réelle
Fabrice Silva, Philippe Guillemain, Jean Kergomard +1
Sound synthesis can be developed using physics-based modelling of the musical instruments. These methods need the description of the various parts of sound production mechanism, in…