In this work, we consider the self-calibration problem of joint calibration and direction-of-
arrival (DOA) estimation using acoustic sensor arrays. Unlike many previous iterative …

The in situ absorption characteristics of sound-absorbing samples are generally estimated
inversely from sound field measurements above the sample's surface. However, the entire …

The knowledge of the acoustic impedance of a material allows for the calculation of its
acoustic absorption. Impedance can also be linked to structural and physical proprieties of …

Green ceramsite concrete is an environmentally friendly sound-absorbing material for high-
speed railway sound barriers. However, given its low sound absorption, this material is not …

The empirical calibration of remote microphone probes (RMP), used to acquire wall-
pressure fluctuations, can introduce spurious resonance into the sensor transfer function …

This study proposes the surface-perforated mortar (SPM) to mitigate railway noise. As one of
the most emerging noise problems, railway noise deteriorates the quality of human lives …

The authors have been developing a method using pressure-velocity sensors (pu-sensors)
to measure the absorption coefficient and surface normal impedance of materials using …

Sound absorbing materials are used in many applications to attenuate unwanted noise.
However, existing measurement methods can only be used on a limited number of material …

Surface perforated mortar (SPM) is a cement-based acoustic material that can reduce
railway noise. SPM has macro-sized holes on its surface, and the geometry of the holes …

The three-dimensional acoustic intensimetry has not been found useful for the sound source
localization, although it was developed a long time ago. One of the leading causes is the …