Title :
A high-quality speech coder at 600 b.p.s
Author_Institution :
ITT Defense Commun. Div., Nutley, NJ, USA
Abstract :
A high-quality speech coder at 600 b/s is described. This coder utilizes postprocessing techniques to compress the speech parameters from LPC-10 analysis. It is direct extension of a 400-b/s speech coder in which the interpolation is removed. An improved gain coder and spectrum coder were developed. These are the key elements to generate higher intelligibility. A three-speaker diagnostic rhyme test score of 86.3 has been achieved
Keywords :
data compression; encoding; speech synthesis; vocoders; 600 bit/s; LPC-10; parameter compression; spectrum coder; speech coder; speech synthesis; vocoders; Bit rate; Decoding; Interpolation; Linear predictive coding; Reflection; Speech analysis; Speech coding; Speech synthesis; Testing; Vector quantization;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115821
