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AN APPARATUS GENERATING AND ENCODING LINEAR PREDICTION CODING(LPC) COEFFICIENTS INA LINEAR PREDICTIVE CODER SIGNAL APPARATUS
AN APPARATUS GENERATING AND ENCODING LINEAR PREDICTION CODING(LPC) COEFFICIENTS INA LINEAR PREDICTIVE CODER SIGNAL APPARATUS
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机译:在线性预测编码信号装置中生成并编码线性预测编码(LPC)系数的装置
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摘要
A novel and improved method and apparatus for encoding line predictive coding (LPC) data in a speech compression system using line spectral square root values is disclosed. A novel and computationally efficient procedure for determining the set of quantization sensitivities for the line spectral square root values is disclosed, which results in a computationally efficient error measure for use in vector quantization of the line spectral square root values. A novel method of weighting the quantization error is disclosed, which accumulates the quantization error in each line spectral square root value and weights that error by the sensitivity of that line spectral square root value.
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