101. Robust coefficients of a higher order AR modelling in a speech enhancement system using parameterized Wiener filtering
- Author
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla, Salavedra Molí, Josep, Masgrau Gómez, Enrique José, Moreno Bilbao, M. Asunción, Estarellas, J, Jove, X, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla, Salavedra Molí, Josep, Masgrau Gómez, Enrique José, Moreno Bilbao, M. Asunción, Estarellas, J, and Jove, X
- Abstract
We study some speech enhancement algorithms based on the iterative Wiener filtering method due to Lim-Oppenheim (1978), where the AR spectral estimation of the speech is carried out using a second-order analysis. But in our algorithms we consider an AR estimation by means of cumulant analysis. This work extends some preceding papers due to the authors, providing a generalization of third- and fourth-order algorithms by means of adding two parameters in the general expression of Wiener filtering. These parameters allow a better control of their performance. Some results are presented considering AWGN but listening tests give similar performance when other noises (diesel engine) are considered., Peer Reviewed, Postprint (published version)
- Published
- 1994