Titlebook: Design of Circular Differential Microphone Arrays; Jacob Benesty,Jingdong Chen,Israel Cohen Book 2015 Springer International Publishing Sw

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Introduction,In general, a microphone array refers to a sound acquisition system that uses multiple microphones to sample the sound field with spatial diversity. These microphones are arranged into a particular geometry in which each sensor’s position relative to a reference point is known to the subsequent processors.

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Design of First-Order Circular Differential Arrays,This chapter is dedicated to the design of first-order circular differential microphone arrays with three sensors. We explore the dipole, cardioid, subcardioid, hypercardioid, and supercardioid.

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Superdirective Beamforming with Circular Arrays,In this chapter, we derive all kind of superdirective beam formers for both linear and circular arrays. We also show how these beamformers are strongly related to DMAs as both approaches lead to large array gains, i.e., supergains.

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Design of Circular Differential Arrays with the Jacobi-Anger Expansion,exponential function with the Jacobi-Anger expansion. In other words, a directivity pattern of order N can be obtained from the Jacobi-Anger expansion of order N, as long as this approximation holds. We also explain how to design circular differential arrays based on this approach and their relation

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Book 2015rming with circular microphone arrays is likely one of the best candidates for applications involving speech enhancement (i.e., noise reduction and dereverberation). Nearly all of the material presented is new and will be of great interest to engineers, students, and researchers working with microph