This chapter reviews the general types of signal processing that are used in modern digital
hearing aids. The focus is on concepts underlying the processing rather than on details of …

The topic of spherical microphone array signal processing has been gaining importance
since the publications of Meyer and Elko around 2002, and fuelled by many others since …

This paper deals with two critical issues about uniform circular arrays (UCAs): frequency-
invariant response and steering flexibility. It focuses on some optimal design of frequency …

A typical application of microphone arrays is to estimate the position of sound sources. The
term microphone array is usually related to an arrangement of several microphones placed …

Differential beamforming, which measures the spatial derivatives of the acoustic pressure
field, can be used in a wide range of small devices that require high-fidelity sound and …

This article presents a theoretical study of differential beamforming with uniform linear
arrays. By defining a forward spatial difference operator, any order of the spatial difference of …

Differential microphone array (DMA), a particular kind of sensor array that is responsive to
the differential sound pressure field, has a broad range of applications in sound recording …

Differential microphone arrays (DMAs) can achieve high directivity and frequency-invariant
spatial response with small apertures; they also have a great potential to be used in a wide …

Microphone arrays can be used in a broad range of applications from telecommunications,
teleconferencing, and smart home systems to intelligent human–machine interfaces to deal …

We present a spatial filtering approach to first-order steerable Differential Microphone Arrays
(DMAs) with arbitrary planar geometry. In particular, the design of the spatial filter is based …