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2011
IEEE

Log-spectral amplitude estimation with Generalized Gamma distributions for speech enhancement

9 years 3 months ago
Log-spectral amplitude estimation with Generalized Gamma distributions for speech enhancement
This paper presents a family of log-spectral amplitude (LSA) estimators for speech enhancement. Generalized Gamma distributed (GGD) priors are assumed for speech short-time spectral amplitudes (STSAs), providing mathematical flexibility in capturing the statistical behavior of speech. Although solutions are not obtainable in closed-form, estimators are expressed as limits, and can be efficiently approximated. When applied to the Noizeus database [8], proposed estimators are shown to provide improvements in segmental signal-to-noise ratio (SSNR) and COSH distance [14], relative to the LSA estimator proposed by Ephraim and Malah [2].
Bengt J. Borgstrom, Abeer Alwan
Added 20 Aug 2011
Updated 20 Aug 2011
Type Journal
Year 2011
Where ICASSP
Authors Bengt J. Borgstrom, Abeer Alwan
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