Name
Abstract | ||
|---|---|---|
Low-cost highly-efficient speech coding is important for personal multimedia communications. In this paper we propose a new low-complexity speech coding method called “Dual-Pulse CS-CELP (DP-CS-CELP)” at 7.8 kbit/s. This method is based on ITU-T G.729. To reduce the complexity, we applied a new excitation model to the random code vectors and simplified the LPC coding, adaptive codebook search, perceptual weighting, and the other structures. The number of operations for this encoder is 3.80 MOPS, which achieves real-time speech coding and decoding on personal computers. Although the efficiency of this coder is a little lower than that of G.729, the MOS listening test showed that the subjective quality was equivalent to or a little better than that of G.726 (32-kbit/s ADPCM) |
Year | DOI | Venue |
|---|---|---|
1996 | 10.1109/ICASSP.1996.541157 | Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference |
Keywords | Field | DocType |
FIR filters,computational complexity,decoding,linear predictive coding,multimedia communication,speech coding,7.8 kbit/s,DP-CS-CELP,Dual-Pulse CS-CELP,ITU-T G.729,LPC coding,MOS listening test,adaptive codebook search,conjugate structure CELP,decoding,excitation model,perceptual weighting,personal multimedia communications,random code vectors,real-time speech coding,speech coding,subjective quality,toll-quality low-complexity speech coder | Vector sum excited linear prediction,Speech coding,Code-excited linear prediction,Voice activity detection,Adaptive Multi-Rate audio codec,Computer science,Speech recognition,Harmonic Vector Excitation Coding,Codec2,Linear predictive coding | Conference |
Volume | ISSN | ISBN |
1 | 1520-6149 | 0-7803-3192-3 |
Citations | PageRank | References |
0 | 0.34 | 7 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ohmuro, H. | 1 | 0 | 0.34 |
| Jotaro Ikedo | 2 | 0 | 1.35 |
| Moriya, T. | 3 | 62 | 8.44 |
| Kataoka, A. | 4 | 82 | 11.17 |