ISCA Archive Interspeech 2008
ISCA Archive Interspeech 2008

A 8.32 kb/s embedded wideband speech coding candidate for ITU-t EV-VBR standardization

Changchun Bao, Hai-ting Li, Ze-xin Liu, Rui Fan, Heng Zhu, Mao-shen Jia, Rui Li

This paper describes a 8.32 kb/s embedded speech codec submitted as a candidate for the ITU-T Embedded Variable Bit Rate (EV-VBR) standardization. The coder is built upon a 2-stage coding structure consisting of embedded ACELP coding from 8 to 16kb/s and embedded TCX coding at 24 and 32 kb/s. The coder is designed to support bandwidth scalability (narrow band and wide band signal) and bit-rate scalability (8.32 kb/s). The output bit-stream produced by the coder is scalable, consisting of core layer and four enhancement layers at 8 kb/s, 12 kb/s, 16 kb/s, 24 kb/s and 32 kb/s individually. ITU-T's test results showed that this coder has good performance compared with reference codec.


doi: 10.21437/Interspeech.2008-218

Cite as: Bao, C., Li, H.-t., Liu, Z.-x., Fan, R., Zhu, H., Jia, M.-s., Li, R. (2008) A 8.32 kb/s embedded wideband speech coding candidate for ITU-t EV-VBR standardization. Proc. Interspeech 2008, 687-690, doi: 10.21437/Interspeech.2008-218

@inproceedings{bao08_interspeech,
  author={Changchun Bao and Hai-ting Li and Ze-xin Liu and Rui Fan and Heng Zhu and Mao-shen Jia and Rui Li},
  title={{A 8.32 kb/s embedded wideband speech coding candidate for ITU-t EV-VBR standardization}},
  year=2008,
  booktitle={Proc. Interspeech 2008},
  pages={687--690},
  doi={10.21437/Interspeech.2008-218}
}