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Efficient quantization of speech spectral amplitudes based on optimal interpolation technique
Efficient quantization of speech spectral amplitudes based on optimal interpolation technique
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机译:基于最优插值技术的语音频谱幅度有效量化
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摘要
A speech coding algorithm interpolates groups speech frames into speech frame pairs, and quantizes each frame of the pair according to a different algorithm. The spectral amplitudes of the second frame are quantized by dividing them into two portions and quantizing one portion and then quantizing a difference between the two portions. The spectral amplitudes of the first frame of the pair are quantized by first converting to a fixed dimension, then interpolating between previous and subsequent frames, then selecting interpolated values in accordance with a mean squared error approach.
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