Prediction-Based Coding of Speech Signals Using Multiscale Recurrent Patterns
Frederico S. Pinagé, Murilo Bresciani De Carvalho, Eduardo A. B. da Silva, Sergio Lima Netto · 2010
This paper investigates the performance of the multidimensional multiscale parser (MMP) algorithm for speech coding.A new prediction-based scheme is considered, where the MMP algorithm operates on the associated prediction-error signal instead of the original speech signal.Other features are considered, such as: nonuniform quantization of MMP initial dictionary, use of auxiliary dictionary of recent past samples, and quantization/normalization during the dictionary updating stage.It is verified that the resulting MMP scheme, combining all these techniques, at 8 kbps can achieve perceptual objective scores comparable to the ITU-T G.729 codec.