Enhanced waveform interpolative coding at low bit-rate.

Enhanced waveform interpolative coding at low bit-rate.

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...

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מידע ביבליוגרפי
הוצא לאור ב:IEEE Transactions on speech and audio processing 9, 8 (2001).
מחבר ראשי: Gottesman, O.
פורמט: Article
שפה:English
נושאים:
2.8 kbit/s.
EWI speech coder.
REW magnitude.
REW parameter.
SEW dispersion phase.
VQ.
Analysis-by-synthesis vector quantization.
Dual-predictive AbS quantization.
Enhanced waveform interpolative coding.
Interpolation.
Low bit-rate coding.
Optimization.
Parameterization.
Pitch search.
Rapidly-evolving waveform magnitude.
Slowly evolving waveform.
Switched-predictive analysis-by-synthesis gain VQ.