An Improved MMSE Amplitude Estimator under Generalized Gamma Distribution Based on Auditory Perception

Generalized Gamma Distributed Bayesian Estimator under Speech Presence Probability

Abstract: This paper presents an approach for speech enhancement based on the Bayesian estimator. The cost function in logarithmic domain of the Bayesian estimator is weighted by psychoacoustically motivated speech distortion measure. This weighted cost function exploits the generalized Gamma distributed speech priors under speech presence probability. The experimental results show that the pro...

Weighted Log-spectral Amplitude Estimation with Generalized Gamma Distribution under Speech Presence Probability

In this paper, we propose a speech enhancement approach. The approach is based on deriving weighted log-spectral amplitude estimator that exploits the generalized Gamma distributed speech priors under speech presence probability. The log-spectral amplitude estimator is weighted by psychoacoustically motivated speech distortion measure to take advantage of the perceptual interpretation. The expe...

Speech Probability Distribution based on Generalized Gamma Distribution

In this paper, we propose a new speech probability distribution, two-sided generalized gamma distribution (GΓD) for an efficient parametric characterization of speech spectra. GΓD forms a generalized class of parametric distributions including the Gaussian, Laplacian and Gamma probability density functions (pdf’s) as special cases. All the parameters associated with the GΓD are estimated by the...

An Entropy-Based Generalized Gamma Distribution for Flood Frequency Analysis

Flood frequency analysis (FFA) is needed for the design of water engineering and hydraulic structures. The choice of an appropriate frequency distribution is one of the most important issues in FFA. A key problem in FFA is that no single distribution has been accepted as a global standard. The common practice is to try some candidate distributions and select the one best fitting the data, based...

Effects of Amplitude Compression on Relative Auditory Distance Perception