关键词: 音频指纹搜索, 主成分分析算法, 求和算法, 数据预处理

Abstract: Different Audio Fingerprint（AF） feature extraction algorithms require different AF searching algorithms.For some specific AF feature extraction algorithms（e.g.foosic algorithm），in data processing，two new AF searching algorithms are proposed and implemented：Principle Component Analysis（PCA） algorithm and sum of the corresponding data between different frames algorithm.The experimental results show that applying PCA algorithm，the accuracy is 94.98% while the search time is as low as 8.42%；applying sum algorithm，the accuracy is 95.92% while the search time is as low as 3.72%.

Key words: audio fingerprint search, Principle Component Analysis（PCA） algorithm, sum algorithm, data preprocessing