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A modified CELP model with computationally efficient adaptive codebook search

1995; Institute of Electrical and Electronics Engineers; Volume: 2; Issue: 3 Linguagem: Inglês

10.1109/97.372912

1558-2361

L.M. de Silva, Abraham Alcaim,

Speech and Audio Processing

In this letter, we propose a CELP algorithm in which the complexity of the search procedure in the adaptive codebook is greatly reduced. This is achieved by means of a modified model of the CELP synthesizer, while keeping the usual perceptual weighting of the synthesis error in the analysis procedure. Simulation results show that the proposed algorithm can provide speech quality comparable to the one obtained with the conventional CELP codec. >