Title Signal enhancement with variable span linear filters / Jacob Benesty, Mads G. Christensen, Jesper R. Jensen

Published Singapore : Springer, 2016

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Description 1 online resource Series Springer topics in signal processing ; volume 7 Springer topics in signal processing ; v. 7. Contents General Concept with Filtering Vectors -- General Concept with Filtering Matrices -- Single-Channel Signal Enhancement in the STFT Domain -- Multichannel Signal Enhancement in the Time Domain -- Multichannel Signal Enhancement in the STFT Domain -- Binaural Signal Enhancement in the Time Domain Summary This book introduces readers to the novel concept of variable span speech enhancement filters, and demonstrates how it can be used for effective noise reduction in various ways. Further, the book provides the accompanying Matlab code, allowing readers to easily implement the main ideas discussed. Variable span filters combine the ideas of optimal linear filters with those of subspace methods, as they involve the joint diagonalization of the correlation matrices of the desired signal and the noise. The book shows how some well-known filter designs, e.g. the minimum distortion, maximum signal-to-noise ratio, Wiener, and tradeoff filters (including their new generalizations) can be obtained using the variable span filter framework. It then illustrates how the variable span filters can be applied in various contexts, namely in single-channel STFT-based enhancement, in multichannel enhancement in both the time and STFT domains, and, lastly, in time-domain binaural enhancement. In these contexts, the properties of these filters are analyzed in terms of their noise reduction capabilities and desired signal distortion, and the analyses are validated and further explored in simulations Bibliography Includes bibliographical references and index Notes English Online resource; title from PDF title page (Ebsco, viewed February 15, 2016) Subject Signal processing. Noise control. noise control. TECHNOLOGY & ENGINEERING -- Mechanical. Noise control Signal processing Form Electronic book Author Christensen, Mads Græsbøll, author. Jensen, Jesper (College teacher), author. ISBN 9789812877390 9812877398 981287738X 9789812877383

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