Enhanced waveform interpolative coding at low bit-rate

@article{Gottesman2001EnhancedWI,
  title={Enhanced waveform interpolative coding at low bit-rate},
  author={Oded Gottesman and Allen Gersho},
  journal={IEEE Trans. Speech Audio Process.},
  year={2001},
  volume={9},
  pages={786-798}
}
This paper presents a high quality enhanced waveform interpolative (EWI) speech coder at low bit-rate. The system incorporates novel features such as optimization of the slowly evolving waveform (SEW) for interpolation, analysis-by-synthesis (AbS) vector quantization (VQ) of the SEW dispersion phase, dual-predictive AbS quantization of the SEW, efficient parameterization of the rapidly-evolving waveform (REW) magnitude, and VQ of the REW parameter, a special pitch search for transitions, and… 

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This paper presents a high quality enhanced waveform interpolative (EWI) speech coder at 2.8 kbps. The system incorporates novel features such as: dual-predictive analysis-by-synthesis (AbS)

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This paper presents an enhanced waveform interpolative (EWI) speech coder at 4 kbps. The system incorporates novel features such as analysis-by-synthesis (AbS) vector-quantization (VQ) of the

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