Optimal Time-Domain Noise Reduction Filters: A Theoretical Study

Front Cover
Springer Science & Business Media, Apr 15, 2011 - Technology & Engineering - 79 pages
0 Reviews
Additive noise is ubiquitous in acoustics environments and can affect the intelligibility and quality of speech signals. Therefore, a so-called noise reduction algorithm is required to mitigate the effect of the noise that is picked up by the microphones. This work proposes a general framework in the time domain for the single and multiple microphone cases, from which it is very convenient to derive, study, and analyze all kind of optimal noise reduction filters. Not only that all known algorithms can be deduced from this approach, shedding more light on how they function, but new ones can be discovered as well.
 

What people are saying - Write a review

We haven't found any reviews in the usual places.

Contents

1 Introduction
1
2 SingleChannel Noise Reduction with a Filtering Vector
3
3 SingleChannel Noise Reduction with a Rectangular Filtering Matrix
23
4 Multichannel Noise Reduction with a Filtering Vector
42
5 Multichannel Noise Reduction with a Rectangular Filtering Matrix
61
Index
77
Copyright

Other editions - View all

Common terms and phrases

About the author (2011)

INRS-EMT, University of Quebec