Forty-third Asilomar conference on signals, systems and computers (ASILOMAR 2009), Date: 2009/11/01 - 2009/11/01, Location: Pacific Grove, CA, USA
Publication date:
2009-01-01
Pages:
1770 -
1773
ISSN:
9781424458271
Proc. of Forty-third Asilomar conference on signals, systems and computers (ASILOMAR 2009)
Author:
Giacobello, D
Murthi, M ; Christensen, MG ; Jensen, SH ; Moonen, Marc
Keywords:
SISTA
Abstract:
In this work, we propose a novel scheme to re-estimate the linear predictive parameters in sparse speech coding. The idea is to estimate the optimal truncated impulse response that creates the given sparse coded residual without distortion. An all-pole approximation of this impulse response is then found using a least square approximation. The all-pole approximation is a stable linear predictor that allows a more efficient reconstruction of the segment of speech. The effectiveness of the algorithm is proved in the experimental analysis. © 2009 IEEE.