ISCA Archive SPKD 2008
ISCA Archive SPKD 2008

Speech analysis by time-varying lattice filters

Karl Schnell

In this contribution, an estimation procedure for speech analysis considering timevarying reflection coefficients is proposed. The time-varying reflection coefficients of the lattice filter are estimated by minimizing the output powers of each section of the FIR lattice filter. For that purpose, the coefficient trajectory of each speech segment is parameterized by linear basis functions. To ensure continuous trajectories at the frame boundaries, the trajectory of each frame is estimated with respect to the coefficients of the left-side frame resulting in a dependent analysis of the frames. The frames can be analyzed successively from left to right in an adaptive way yielding a continuous piece-wise linear parameter trajectory in terms of reflection coefficients.


Cite as: Schnell, K. (2008) Speech analysis by time-varying lattice filters. Proc. ISCA ITRW on Speech Analysis and Processing for Knowledge Discovery, paper 039

@inproceedings{schnell08_spkd,
  author={Karl Schnell},
  title={{Speech analysis by time-varying lattice filters}},
  year=2008,
  booktitle={Proc. ISCA ITRW on Speech Analysis and Processing for Knowledge Discovery},
  pages={paper 039}
}