Signal Enhancement with Variable Span Linear Filters

Research output: Book/ReportBookResearchpeer-review

Abstract

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.
Original languageEnglish
PublisherSpringer
Number of pages172
ISBN (Print)978-981-287-738-3
ISBN (Electronic)978-981-287-739-0
DOIs
Publication statusPublished - 2016
SeriesSpringer Topics in Signal Processing
Volume7
ISSN1866-2609

Cite this

Benesty, Jacob ; Christensen, Mads Græsbøll ; Jensen, Jesper Rindom. / Signal Enhancement with Variable Span Linear Filters. Springer, 2016. 172 p. (Springer Topics in Signal Processing, Vol. 7).
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author = "Jacob Benesty and Christensen, {Mads Gr{\ae}sb{\o}ll} and Jensen, {Jesper Rindom}",
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Signal Enhancement with Variable Span Linear Filters. / Benesty, Jacob; Christensen, Mads Græsbøll; Jensen, Jesper Rindom.

Springer, 2016. 172 p. (Springer Topics in Signal Processing, Vol. 7).

Research output: Book/ReportBookResearchpeer-review

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AB - 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.

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Benesty J, Christensen MG, Jensen JR. Signal Enhancement with Variable Span Linear Filters. Springer, 2016. 172 p. (Springer Topics in Signal Processing, Vol. 7). https://doi.org/10.1007/978-981-287-739-0