Title :
16 kbit/s adaptive predictive coding of speech with adaptive postfiltering
Author :
Zarkadis, D.J. ; Evans, Barry G.
Author_Institution :
University of Surrey, Department of Electronic and Electrical Engineering, Guildford, UK
Abstract :
An adaptive predictive coder with backward adaptive short-term predictor is presented for operation at 16 kbit/s. Adaptive postfiltering is applied in the output of the decoder. By varying the degree of postfiltering the performance of the coder is evaluated both objectively and subjectively.
Keywords :
analogue-digital conversion; digital communication systems; encoding; filtering and prediction theory; speech analysis and processing; voice communication; 16 kbit/s; APC; adaptive postfiltering; adaptive predictive coding; backward adaptive short-term predictor; entropy quantisation; speech encoding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870264
