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哼唱检索中联合音高与能量的音符切分算法
  • ISSN号：1000-3428
  • 期刊名称：《计算机工程》
  • 时间：0
  • 分类：TN911.72[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]北方工业大学信息工程学院,北京100144, [2]北京邮电大学计算机学院,北京100876
  • 相关基金：国家自然科学基金资助项目（60821001）;中央高校基本科研业务费专项基金资助项目（2011RC0210）;北京市教委面上基金资助项~（KM201010009005）
作者： 王恩成[1], 苏腾芳[1], 袁开国[2], 伍淳华[2], 王玉庆[2]
关键词： 基音提取, 自相关函数, 旋律轮廓, 节奏, 哼唱检索, 音符分割, pitch extraction, auto correlation function, melody contour, rhythm, Query By Humming（QBH）, note segmentation
中文摘要：

为改善哼唱检索系统中利用旋律轮廓和节奏进行匹配的性能，提出一种新的联合音高与能量的音符切分算法。该算法改进基于自相关的基音提取算法，对提取的基音频率曲线进行后处理，并在切分过程中保持能量的分割信息，利用半音曲线的突变做切分，以提高音符切分的准确度。实验结果表明，在安静实验室环境下，该算法能获得88．75％的分割准确度。

英文摘要：

In order to improve the retrieval performance of using melody contour and rhythm in Query By Humming（QBH）, this paper proposes a new algorithm using pitch and energy for note segmentation. Autocorrelation pitch extraction algorithm is improved. Post processing is used to smooth the pitch frequency curves, and at the same time, energy segmentation information is maintained in the process of note segmentation. Semitone curve is used for segmentation. This algorithm improves the accuracy of the note segmentation. Experimental results indicate that the accuracy rate of the algorithm is 88.75% in quiet laboratory environment which is of great significance in QBH.

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期刊信息
  • 《计算机工程》
  • 北大核心期刊（2014版）
  • 主管单位:中国电子科技集团公司
  • 主办单位:华东计算技术研究所 上海市计算机学会
  • 主编：游小明
  • 地址：上海市桂林路418号
  • 邮编：200233
  • 邮箱：ecice06@ecict.com.cn
  • 电话：021-64846769
  • 国际标准刊号：ISSN：1000-3428
  • 国内统一刊号：ISSN：31-1289/TP
  • 邮发代号:4-310
  • 获奖情况:
  • 1999～2000、2001～2002年度信息产业部优秀期刊奖,2003-2004、2005-2006年度信息产业部电子精品科技...,2007-2008、2009-2010年度工业和信息产业部电子精...,012年度中国科技论文在线优秀期刊一等奖,2013年度中国科技论文在线优秀期刊二等奖
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  • 被引量:84139