In order to eliminate the musical noise remained in the results enhanced by short-time spectral attenuation techniques, this paper proposes a novel a priori SNR estimator. The proposed estimator is built on Burg-based power spectral estimation, which takes into account the properties in estimator of smoothness, accuracy and resolution, with the emphasis on their relationships and influences on de-noising. The experimental results demonstrate that: if the proposed estimator is incorporated into the noise suppressor using minimum mean-square error (MMSE) method or log-spectral minimum mean-square error (LSA-MMSE) method, better results will be achieved with the musical noise greatly eliminated and distortion reduced further.
Elimination of Musical Noise Phenomenon with Burg-Based A Priori SNR Estimator
2008 Congress on Image and Signal Processing ; 5 ; 328-332
2008-05-01
328915 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
SLUB | 1996
|Concept of Elimination of a priori Data in Optical Location Measurements
British Library Conference Proceedings | 2003
|