Objective and Subjective Evaluation of Seven Selected All-Pole Modelling Methods in Processing of Noise Corrupted Speech

Author

Magi, Carlo ; Bäckström, Tom ; Alku, Paavo

Author_Institution

Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol., Espoo

fYear

2006

fDate

38869

Firstpage

118

Lastpage

121

Abstract

Spectral modeling properties of seven selected all-pole modeling methods were compared by using both objective and subjective tests. Model behavior was evaluated with vowel sounds corrupted by uncorrelated Gaussian and Laplacian background noise. Objective tests were computed with the logarithmic spectral differences (SD₂) and subjective speech quality was assessed with the degradation category rating (DCR) listening test. In both tests, the WLPC method, where the weighting function was the short time energy of the speech signal, gave the best results. The correlation between the objective and subjective results was found to be remarkably strong

Keywords

Gaussian noise; speech processing; DCR; Laplacian background noise; all-pole modelling methods; degradation category rating; spectral modeling properties; speech processing; uncorrelated Gaussian noise; Acoustic noise; Acoustic testing; Autocorrelation; Background noise; Laplace equations; Polynomials; Predictive models; Speech analysis; Speech enhancement; Speech processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Symposium, 2006. NORSIG 2006. Proceedings of the 7th Nordic

Conference_Location

Rejkjavik

Print_ISBN

1-4244-0412-6

Electronic_ISBN

1-4244-0413-4

Type

conf

DOI

10.1109/NORSIG.2006.275291

Filename

4052286