Constrained iterative speech enhancement with application to speech recognition

@article{Hansen1991ConstrainedIS,
  title={Constrained iterative speech enhancement with application to speech recognition},
  author={John H. L. Hansen and Mark A. Clements},
  journal={IEEE Trans. Signal Processing},
  year={1991},
  volume={39},
  pages={795-805}
}
In this paper, an improved form of iterative speech enhancement for single channel inputs is formulated. The basis of the procedure is sequential maximum a posteriori estimation of the speech waveform and its all-pole parameters as originally formulated by Lim and Oppenheim, followed by imposition of constraints upon the sequence of speech spectra. The new approaches impose intraframe and interframe constaints on the input speech signal to ensure more speechlike formant trajectories, reduce… CONTINUE READING