Microphone Arrays: Signal Processing Techniques and Applications

✍ Scribed by Darren B. Ward, Rodney A. Kennedy, Robert C. Williamson (auth.), Prof. Michael Brandstein, Dr. Darren Ward (eds.)

Publisher: Springer-Verlag Berlin Heidelberg
Year: 2001
Tongue: English
Leaves: 401
Series: Digital Signal Processing
Edition: 1
Category: Library

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✦ Synopsis

The study and implementation of microphone arrays originated over 20 years ago. Thanks to the research and experimental developments pursued to the present day, the field has matured to the point that array-based technology now has immediate applicability to a number of current systems and a vast potential for the improvement of existing products and the creation of future devices. This text is organized into four sections which roughly follow the major areas of microphone array research today. Parts I and II are primarily theoretical in nature and emphasize the use of microphone arrays for speech enhancement and source localization, respectively. Part III presents a number of specific applications of array-based technology. Part IV addresses some open questions and explores the future of the field. The result is a text that will be of utility to a large audience, from the student or practicing engineer just approaching the field to the advanced researcher with multi-channel signal processing experience.

✦ Table of Contents

Front Matter....Pages I-XVIII
Front Matter....Pages 1-1
Constant Directivity Beamforming....Pages 3-17
Superdirective Microphone Arrays....Pages 19-38
Post-Filtering Techniques....Pages 39-60
Spatial Coherence Functions for Differential Microphones in Isotropic Noise Fields....Pages 61-85
Robust Adaptive Beamforming....Pages 87-109
GSVD-Based Optimal Filtering for Multi-Microphone Speech Enhancement....Pages 111-132
Explicit Speech Modeling for Microphone Array Applications....Pages 133-153
Front Matter....Pages 155-155
Robust Localization in Reverberant Rooms....Pages 157-180
Multi-Source Localization Strategies....Pages 181-201
Joint Audio-Video Signal Processing for Object Localization and Tracking....Pages 203-225
Front Matter....Pages 227-227
Microphone-Array Hearing Aids....Pages 229-253
Small Microphone Arrays with Postfilters for Noise and Acoustic Echo Reduction....Pages 255-279
Acoustic Echo Cancellation for Beamforming Microphone Arrays....Pages 281-306
Optimal and Adaptive Microphone Arrays for Speech Input in Automobiles....Pages 307-329
Speech Recognition with Microphone Arrays....Pages 331-353
Blind Separation of Acoustic Signals....Pages 355-380
Front Matter....Pages 381-381
Future Directions for Microphone Arrays....Pages 383-387
Future Directions in Microphone Array Processing....Pages 389-394
Back Matter....Pages 395-398

✦ Subjects

Signal, Image and Speech Processing;Acoustics;Communications Engineering, Networks

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