【摘要】 介绍一种基于倒谱分析的快速音频检索方法。该算法以倒谱特征参数为基础,在特征空间上采用距离测度的检索方法。在对CCTV1频道100 h音频库的测试中,该方法搜索均长为12．5 s的模板音频时的时速达到0．0014倍实时,而等错误率(Equal Error Rate,EER)仅为1．5%。实验结果表明,在保证了搜索速度的前提下,该方法有较低的误识率。文章最后针对所提出算法的不足之处提出了改进意见。更多还原

【Abstract】 This paper presents a search method that can quickly detect and locate similar sound in audio database.The core part of this cepstrum based method comprises a distance metrics policy.Experimental results indicate that the pro- posed algorithm is both accurate and speedy.How to improve the proposed algorithm is also discussed.更多还原