ISCA Archive Eurospeech 1999
ISCA Archive Eurospeech 1999

Distortion effects of several cumulant-based wiener filtering algorithms

Josep M. Salavedra, Xavier Bou

Some Single-Microphone Speech Enhancement algorithms based on the iterative Wiener filtering Method due to Lim-Oppenheim [2] are evaluated. In the original Lim-Oppenheim algorithm, AR spectral estimation of speech is carried out using a second-order analysis, but our algorithms consider an AR estimation from a cumulant analysis. This work extends some preceding papers due to the authors [4], [5]. Third- and fourth-order cumulant-based algorithms are compared to classical second-order one. This comparison is evaluated by considering three different noisy environments. A detailed study based on a frame-by-frame analysis leads to an optimum iteration of each algorithm as a trade-off between noise reduction and distortion effects. Voiced and unvoiced sounds are separately discussed. We conclude that third-order cumulant-based algorithm offers a more valuable performance than the others.


doi: 10.21437/Eurospeech.1999-580

Cite as: Salavedra, J.M., Bou, X. (1999) Distortion effects of several cumulant-based wiener filtering algorithms. Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999), 2631-2634, doi: 10.21437/Eurospeech.1999-580

@inproceedings{salavedra99_eurospeech,
  author={Josep M. Salavedra and Xavier Bou},
  title={{Distortion effects of several cumulant-based wiener filtering algorithms}},
  year=1999,
  booktitle={Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999)},
  pages={2631--2634},
  doi={10.21437/Eurospeech.1999-580}
}