计算机工程Issue(5)：266-269,4.DOI:10.3969/j.issn.1000-3428.2014.05.055
基于GPU加速的音频检索技术
Audio Retrieval Technology Based on GPU Acceleration
摘要
Abstract
As digital audio has a feature of great data volume, traditional audio retrieval method results are used in intolerable response time. In order to speed up audio retrieval, this paper proposes a GPU acceleration audio retrieval method. The audio is divided into multiple short audio segments based on the features, and the characteristic matrix is constituted by the eigenvalues which is calculated from each short audio segment using the GPU acceleration algorithm. The suffix array deformation algorithm is used to find the common set from the two eigenvalues sequence. The common set is refined and overall matched to get the retrieval result. Experimental results show that the retrieval accuracy is over 95% and compared with existing algorithms, this method can significantly improve the retrieval speed and speedup can be achieved in more than 10 times.关键词
音频检索/GPU加速/后缀数组/音频特征/特征值序列/整体匹配Key words
audio retrieval/GPU acceleration/suffix array/audio characteristic/eigenvalue sequence/overall match分类
信息技术与安全科学引用本文复制引用
金国平,余宗桥,郭延文,蒋和..基于GPU加速的音频检索技术[J].计算机工程,2014,(5):266-269,4.基金项目
国家自然科学基金资助项目(61073098,61021062)；国家“973”计划基金资助项目(2010CB327903)；江苏省自然科学基金资助项目(BK2009081)。 （61073098,61021062）
