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摘要: 在基于矢量量化的说话识别系统所选用的LBG算法中,码本分裂时的阈值是影响初始码本生成的重要因素之一, 而传统方式所采用的阈值不容易确定,且需要进行大量的实验来获得经验值。提出在一定范围内动态地,随机地产生阈值的方法来改进初始码本形成策略,并结合差分倒谱参数建立说话人识别模型。实验结果表明该方法在识别率得到一定改善的前提下,训练时间及识别时间有了明显改善。