Using the method of modified linear prediction for robust acoustic coding of speech

Ensuring the acceptable acoustic coding of a signal under the conditions of noise interference is an important problem of recognizing speech signals. The result of calculating acoustic characteristics by the existing algorithms strongly depends on the signal-to-noise ratio. To solve the problem rela...

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Bibliographic Details
Published inRadiophysics and quantum electronics Vol. 49; no. 7; pp. 535 - 539
Main Authors Gerasimov, A V, Morozov, O A, Soldatov, E A, Fidelman, V R
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.07.2006
Subjects
Acoustic noise
Acoustics
Algorithms
Coding
Interference
Linear prediction
Noise levels
Speech
Wideband
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Summary:Ensuring the acceptable acoustic coding of a signal under the conditions of noise interference is an important problem of recognizing speech signals. The result of calculating acoustic characteristics by the existing algorithms strongly depends on the signal-to-noise ratio. To solve the problem related to ensuring robust acoustic coding, we propose an algorithm for obtaining cepstral coefficients on the basis of the method of modified linear prediction. The algorithm is aimed at the specific features of the vocalized speech signals with a pronounced formant structure including the case of wideband additive interference. The algorithm stability as a function of the noise level is studied experimentally. The result is improved compared with the well-known approaches.[PUBLICATION ABSTRACT]
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ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-006-0086-1