An acoustic metasurface carpet cloak based on membrane-capped cavities is proposed and
investigated numerically. This design has been chosen for allowing ultrathin geometries …

The pressure-based, current-driven impedance control technique known as “Electroacoustic
Absorption” has offered new horizons for room modal equalization at low frequencies …

This paper proposes a hybrid impedance control architecture for an electroacoustic
absorber that combines an improved microphone-based feedforward control with a current …

This paper deals with active sound attenuation in lined ducts with flow and its application to
duct modes damping in aircraft engine nacelles. It presents an active lining concept based …

We present a fundamentally new approach to laboratory acoustic and seismic wave
experimentation that enables full immersion of a physical wave propagation experiment …

Boundary treatment for noise mitigation has long been targeted by both passive and active
noise control strategies. Applications range from building and vehicle sound comfort, to the …

This paper is focused on experimental characterization of new active liners technologies in
acoustic flow duct facilities (FDF). These measurements have been performed in the NLR …

The SALUTE project aims at evaluating performance of electroacoustic metasurface,
employing a surface array of controlled electroacoustic actuators, for smart acoustic lining …

A hybrid electro-acoustic nonlinear membrane absorber working as a nonlinear energy sink
(here after named EA-NES) is described. The device is composed of a thin circular visco …

In this paper, experimental results of broadband noise reduction in an acoustic flow duct are
presented. An active liner composed of an array of electroacoustic absorbers is used. The …