Title :
An 8-kb/s conjugate-structure algebraic CELP (CS-ACELP) speech coding
Author :
Juan, Lan ; Biqin, Lio ; Qiuliang, Fu
Author_Institution :
Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China
Abstract :
The ITU-T issued the new recommendation G.729 in 1996, to realize a high-quality and low-delay speech coder at 8-kb/s. In this paper, the algorithm for conjugate-structure algebraic code-excited linear prediction (CS-ACELP) is discussed, and its central aspects are analyzed in detail. Topics covered include the special codebook structure, efficient codebook search strategies and speech improvement approaches
Keywords :
algebraic codes; linear predictive coding; speech coding; speech enhancement; table lookup; vector quantisation; 8 kbit/s; CS-ACELP speech coding; G.729; ITU-T; code-excited linear prediction; conjugate-structure algebraic CELP; efficient codebook search strategies; high-quality speech coder; low-delay speech coder; special codebook structure; vector quantization codebook; Algorithm design and analysis; Bit rate; Delay; Filters; Linear predictive coding; Quantization; Speech analysis; Speech coding; Speech synthesis; Vectors;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770962
