The unfavorable effects of narrowband inputs on the decoder adjustment when the LMS algorithm is used are analyzed. An explanation is given for the behavior of the CCITT algorithm. Suboptimality of prediction is granted to achieve adjustment, resulting in a satisfactory tradeoff between reduction rate and adjustment. The link between adjustment and uniform stability is enhanced. >
['M. Bonnet', 'Odile Macchi', 'M. Jaidane-Saidane']
Theoretical analysis of the ADPCM CCITT algorithm