In this paper, a LPC algorithm in low bit rate speech coding improved by MBE model is presented. The detailed schemes of parameter extraction, quantization, coding, and speech synthesis are introduced. In addition, a 1.6kb/s speech coding/decoding system based on this algorithm is constructed with language C. By subjective evaluation, it is concluded that the performance of this system approaches or corresponds to that of 2.4kb/s MELP algorithm.

LPC_MBE.pdf

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