Noise Reduction by Maximum a Posteriori Spectral Amplitude Estimation with Supergaussian Speech Modeling

  title={Noise Reduction by Maximum a Posteriori Spectral Amplitude Estimation with Supergaussian Speech Modeling},
  author={Thomas Lotter},
This contribution presentsa spectral amplitude estimator for acousticalbackgroundnoise suppressionbasedon maximum a posterioriestimationandsuper gaussianstatisticalmodelingof the speechDFT coefficients. The probability densityfunction of the speechspectralamplitudeis modeledwith a simple parametric function,whichallowsahighapproximationaccuracy for Laplace or Gammadistributed real and imaginary parts of the speech DFT coefficients.Basedon theapproximation,a computationally efficient maximuma… CONTINUE READING
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