Name
Abstract | ||
|---|---|---|
The authors present a novel version of low-delay vector excitation coding (LD-VXC) operating at 8 kb/s that provides very good speech quality with a coding delay below that of the CCITT requirement. The coder integrates techniques such as vector quantization and analysis-by-synthesis, without any excessive buffering of speech samples in the encoder, by incorporating backward adaptive linear prediction. Compared with LD-VXC at 16 kb/s which was reported earlier, this version features an increased vector dimension, closed-loop pitch prediction with a three-tap pitch filter, codebook orthogonalization techniques, and dual-mode interframe coding of the pitch trajectory. Informal listening tests demonstrate that its quality is comparable to that of VSELP operating at the same rate, while maintaining a delay constraint an order of magnitude smaller than that of VSELP |
Year | DOI | Venue |
|---|---|---|
1992 | 10.1109/ICASSP.1992.225976 | Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference |
Keywords | DocType | Volume |
information listening tests,backward adaptive linear prediction,vector quantization,three-tap pitch filter,ld-vxc,new coder,filtering and prediction theory,coding delay,codebook orthogonalization techniques,analysis-by-synthesis,vector quantisation,pitch trajectory,adaptive linear prediction,low-delay vxc,new version,vselp operating,delay constraint,closed-loop pitch prediction,good speech quality,low-delay vector excitation coding,speech coding,8 kbit/s,interframe coding,speech quality,dual-mode interframe coding,increased vector dimension,decoding,trajectory,vectors,speech synthesis,information processing,analysis by synthesis,speech processing | Conference | 1 |
ISSN | Citations | PageRank |
1520-6149 | 0 | 0.34 |
References | Authors | |
2 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jey-Hsin Yao | 1 | 3 | 1.15 |
| John J. Shynk | 2 | 14 | 10.72 |
| Allen Gersho | 3 | 0 | 0.34 |