Study and Design of Differential Microphone Arrays

Idioma: inglés

Editorial: Springer, Springer Okt 2012, 2012

364233752X / 9783642337529

Serie: Libro 3 de 16 - Springer Topics in Signal Processing

Librería: buchversandmimpf2000, Emtmannsberg, BAYE, Alemaniabuchversandmimpf2000

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This item is printed on demand - Print on Demand Titel. Neuware -Microphone arrays have attracted a lot of interest over the last few decades since they have the potential to solve many important problems such as noise reduction/speech enhancement, source separation, dereverberation, spatial sound recording, and source localization/tracking, to name a few. However, the design and implementation of microphone arrays with beamforming algorithms is not a trivial task when it comes to processing broadband signals such as speech. Indeed, in most sensor arrangements, the beamformer output tends to have a frequency-dependent response. One exception, perhaps, is the family of differential microphone arrays (DMAs) who have the promise to form frequency-independent responses. Moreover, they have the potential to attain high directional gains with small and compact apertures. As a result, this type of microphone arrays has drawn much research and development attention recently. This book is intended to provide a systematic study of DMAs from a signal processing perspective. The primary objective is to develop a rigorous but yet simple theoryfor the design, implementation, and performance analysis of DMAs. The theory includes some signal processing techniques for the design of commonly used first-order, second-order, third-order, and also the general Nth-order DMAs. For each order, particular examples are given on how to form standard directional patterns such as the dipole, cardioid, supercardioid, hypercardioid, subcardioid, and quadrupole. The study demonstrates the performance of the different order DMAs in terms of beampattern, directivity factor, white noise gain, and gain for point sources. The inherent relationship between differential processing and adaptive beamforming is discussed, which provides a better understanding of DMAs and why they can achieve high directional gain. Finally, we show how to design DMAs that can be robust against white noise amplification.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 192 pp. Englisch.…

N° de ref. del artículo 9783642337529

Título
Study and Design of Differential Microphone Arrays
Autor
Jacob Benesty
Editorial
Springer, Springer Okt 2012
Año de publicación
2012
Estado
Neu
Encuadernación
Buch
Idioma
inglés
ISBN 10
364233752X
ISBN 13
9783642337529
Peso del artículo
459 gramos
Dimensiones
241x160x16 mm
Serie
Libro 3 de 16: Springer Topics in Signal Processing

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Emtmannsberg, BAYE, Alemania

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