Detail publikace

Adaptive Thresholding of DFT Coefficients based on Probability Distribution of Additive Noise

RÁŠO, O. BALÍK, M.

Originální název

Adaptive Thresholding of DFT Coefficients based on Probability Distribution of Additive Noise

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The proposed method of adaptive thresholding uses probability distribution of additive noise signal, by which the input signal is corrupted. The additive noise with non-uniformly distributed power spectral density can be reduced via normalization process. The method is focused on musical signal corrupted by the noise with relative high input signal-to-noise ratio ranging between 20 and 30 dB. The method uses the thresholding of coefficients of Discrete Fourier transform (DFT). Minimal signal distortion should be introduced by this method. In conclusion the method is tested for noise reduction efficiency and size of degradation of processed signal.

Klíčová slova

Thresholding, Acoustic noise, Digital filters, Noise reduction, Discrete Fourier transform.

Autoři

RÁŠO, O.; BALÍK, M.

Rok RIV

2010

Vydáno

24. 3. 2010

ISSN

1790-5052

Periodikum

WSEAS Transactions on Signal Processing

Ročník

2009

Číslo

12

Stát

Řecká republika

Strany od

390

Strany do

399

Strany počet

10

BibTex

@article{BUT47309,
  author="Ondřej {Rášo} and Miroslav {Balík}",
  title="Adaptive Thresholding of DFT Coefficients based on Probability Distribution of Additive Noise",
  journal="WSEAS Transactions on Signal Processing",
  year="2010",
  volume="2009",
  number="12",
  pages="390--399",
  issn="1790-5052"
}