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In this paper, a prediction-compensated multiple description (MD) coding framework for two-band filter banks is proposed, in which the coefficients in each subband are split into two descriptions. Each description also includes the prediction residuals of the data in the other description. The designs of the optimal orthogonal and biorthogonal filter banks are formulated in a unified framework, and...
This paper presents a 3.3kbps Characteristic Waveform Interpolation (CWI) speech coding algorithm based on biorthogonal Wavelet Transform (WT). The amplitude spectral surface of characteristic waveforms is decomposed into a series of reduced time resolution surfaces with B-spline biorthogonal wavelet filter banks. This multi-scale characteristic leads to more efficient quantization by exploiting each...
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