Publications associées à Pression acoustique

Localization of emergency acoustic sources by micro aerial vehicles

Dario Floreano, Felix Stephan Schill, Meysam Basiri

For micro aerial vehicles (MAVs) involved in search and rescue missions, the ability to locate the source of a distress sound signal is significantly important and allows fast localization of victims and rescuers during nighttime, through foliage and in du ...

John Wiley & Sons2017

Sensorless Electroacoustic Absorbers Through Synthesized Impedance Control for Damping Low-Frequency Modes in Cavities

Hervé Lissek, Romain Boulandet, Etienne Thierry Jean-Luc Rivet

This paper presents a concept of sensorless electroacoustic absorber for damping the low-frequency modes in a cavity such as a duct or a room. Taking advantage of the reciprocity of the voice coil transducer, it is shown that a synthetic electrical admitta ...

S Hirzel Verlag2016

Aircraft panel with sensorless active sound power reduction capabilities through virtual mechanical impedances

Romain Boulandet

This paper deals with an active structural acoustic control approach to reduce the transmission of tonal noise in aircraft cabins. The focus is on the practical implementation of the virtual mechanical impedances method by using sensoriactuators instead of ...

Elsevier2016

Representation of Sound Objects within Early-Stage Auditory Areas: A Repetition Effect Study Using 7T fMRI

Wietske Van der Zwaag, Melissa Saenz, Stephanie Clarke

Environmental sounds are highly complex stimuli whose recognition depends on the interaction of top-down and bottom-up processes in the brain. Their semantic representations were shown to yield repetition suppression effects, i. e. a decrease in activity d ...

Public Library of Science2015

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Livia Eleonora Bove Kado

Ultrafast acoustics measurements on liquid mercury have been performed at high pressure and temperature in a diamond anvil cell using picosecond acoustic interferometry. We extract the density of mercury from adiabatic sound velocities using a numerical it ...

American Institute of Physics2014

Virtual Reality for Architectural Acoustics

Dirk Schröder

Over the last decades, powerful prediction models have been developed in architectural acoustics, which are used for the calculation of sound propagation in indoor and/or outdoor scenarios. Sound insulation is predicted rather precisely by using direct and ...

Taylor & Francis2014

The Contributions of Sensory Dominance and Attentional Bias to Cross-modal Enhancement of Visual Cortex Excitability

Micah Murray

Approaching or looming sounds (L-sounds) have been shown to selectively increase visual cortex excitability [Romei, V., Murray, M. M., Cappe, C., & Thut, G. Preperceptual and stimulus-selective enhancement of low-level human visual cortex excitability by s ...

2013

DC Breakdown in gases for complex geometries from high vacuum to atmospheric pressure

Ralph Schnyder

This thesis presents an experimental investigation and a numerical simulation of breakdown in a ring assembly. Previous works are mostly limited to breakdown in simple geometries such as parallel plates or pin-to-plate. Here we discuss the effect of more c ...

EPFL2013

Effect of spectral overlap on the echo suppression threshold for single reflection conditions

Andreas Walther

In performing arts venues, the spectra of direct and reflected sound at a receiving location differ, due to seat dip effect, diffusive and absorptive surfaces, and source directivity. This paper examines the influence of differing lead and lag spectral con ...

Acoustical Society of America2013

Cavitation risk estimation at orifice spillway based on UVP and dynamic pressure measurements

Giovanni De Cesare, Michael Pfister, Michael Müller, Rafael Xavier Meriade Duarte

Orifice spillways might be affected by cavitation if the profile of the inlet structure includes a relevant curvature. At one of the world’s largest dams, such damages were observed on the profiled slab. To limit their progression, an adapted operation reg ...

Departement Magnetohydrodynamics, Institute of Fluid Dynamics2012

Pression acoustique

Representation of Sound Objects within Early-Stage Auditory Areas: A Repetition Effect Study Using 7T fMRI

Effect of spectral overlap on the echo suppression threshold for single reflection conditions

Cavitation risk estimation at orifice spillway based on UVP and dynamic pressure measurements

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Localization of emergency acoustic sources by micro aerial vehicles

Sensorless Electroacoustic Absorbers Through Synthesized Impedance Control for Damping Low-Frequency Modes in Cavities

Aircraft panel with sensorless active sound power reduction capabilities through virtual mechanical impedances

Representation of Sound Objects within Early-Stage Auditory Areas: A Repetition Effect Study Using 7T fMRI

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Virtual Reality for Architectural Acoustics

The Contributions of Sensory Dominance and Attentional Bias to Cross-modal Enhancement of Visual Cortex Excitability

DC Breakdown in gases for complex geometries from high vacuum to atmospheric pressure

Effect of spectral overlap on the echo suppression threshold for single reflection conditions

Cavitation risk estimation at orifice spillway based on UVP and dynamic pressure measurements

Localization of emergency acoustic sources by micro aerial vehicles

Virtual Reality for Architectural Acoustics

The Contributions of Sensory Dominance and Attentional Bias to Cross-modal Enhancement of Visual Cortex Excitability

DC Breakdown in gases for complex geometries from high vacuum to atmospheric pressure

Aircraft panel with sensorless active sound power reduction capabilities through virtual mechanical impedances

Sensorless Electroacoustic Absorbers Through Synthesized Impedance Control for Damping Low-Frequency Modes in Cavities

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements