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提出了一种自适应格型预测子带编码的语音编码方法。该方法在输入语音作子带分解的基础上，用自适应格型预测的方法对低频子带进行编码，用矢量量化的方法对高频子带进行编码，在相同码率的情况下，提高了编码的量化信噪比，改善了重建语音的质量。
A speech coding method based on adaptive lattice prediction subband coding is proposed. Based on subband decomposition of input speech, this method encodes low frequency subbands by adaptive lattice prediction and encodes high frequency subbands by vector quantization. At the same bit rate, The coded signal-to-noise ratio improves the quality of reconstructed speech.