Optimal filters in the frequency domain

Jacob Benesty, Jingdong Chen, Yiteng Huang, Israel Cohen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

We now investigate the design of noise reduction filters in the frequency domain, which is an alternative to the time-domain approach studied in the previous chapter. In the real world, frequency-domain filters are, by far, the most popular methods. This is mainly because: 1) the filters at different frequencies (or frequency bands) are designed and handled independently with each other, therefore there is a significant flexibility in dealing with colored noise; 2) most of our knowledge and understanding of speech production and perception is related to frequencies; and 3) thanks to the fast Fourier transform (FFT), the implementation of frequency-domain filters are generally very efficient. So, in this chapter, we develop some widely used classical frequency-domain filters and discuss their properties.

Original languageEnglish
Title of host publicationSpringer Topics in Signal Processing
PublisherSpringer Science and Business Media B.V.
Pages1-18
Number of pages18
DOIs
StatePublished - 2009
Externally publishedYes

Publication series

NameSpringer Topics in Signal Processing
Volume2
ISSN (Print)1866-2609
ISSN (Electronic)1866-2617

Keywords

  • Clean Speech
  • Noise Reduction
  • Noisy Speech
  • Optimal Filter
  • Speech Signal

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