16kb/s Adaptive Differential Pulse Code Modulation of Speech
S. Haykin and L. LiCommunications Research Laboratory, McMaster UniversityHamilton, Ontario, Canada L8S 4K1haykin@mcmaster.ca liang@nimios.mcmaster.eng.ca
Abstract
In this paper we describe a novel nonlinear adaptive differential pulse code modulation (ADPCM) system capable of coding speech at 16 kb/s. The nonlinear predictor involves the use of two subsections: (1) a nonlinear structure consisting of a cascade of two real-time recurrent neural networks, and (2) a linear predictor.
1 Introduction
Predictive coding has established itself as a useful technique for the digital representation of speech signals at a rate lower than the standard pulse code modulation(PCM). To accomplish ...
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