ISCA Archive ICSLP 2000
ISCA Archive ICSLP 2000

A new low bit rate speech coder based on intraframe waveform interpolation

Hongtao Hu, Limin Du

A new characteristic waveform (CW) interpolation coder is proposed in this paper. In the proposed coder, two characteristic waveforms are extracted from LPC residual signal at each frame. The Waveform Interpolation (WI) is operated within the frame. In the novel WI, variable dimension vector quantization (VDVQ) and power vector quantization are proposed and the low frequency band (LFB) and high frequency band (HFB) are allocated different numbers of bits according to human hearing perception. A result of a 2400 bps coder is presented and the reconstructed speech shows its quality is closed to FED-STD-1016.


Cite as: Hu, H., Du, L. (2000) A new low bit rate speech coder based on intraframe waveform interpolation. Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000), vol. 3, 834-837

@inproceedings{hu00b_icslp,
  author={Hongtao Hu and Limin Du},
  title={{A new low bit rate speech coder based on intraframe waveform interpolation}},
  year=2000,
  booktitle={Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000)},
  pages={vol. 3, 834-837}
}