计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (26): 124-128.

• 数据库、信号与信息处理 • 上一篇    下一篇

MIDI主旋律特征提取构建音乐数据库

李 娟1,周明全1,李 鹏2   

  1. 1.北京师范大学 信息科学与技术学院,北京 100875
    2.北京师范大学 虚拟现实与可视化研究所,北京 100875
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-09-11 发布日期:2011-09-11

Music database construction based on MIDI melody feature extraction

LI Juan1,ZHOU Mingquan1,LI Peng2   

  1. 1.School of Information Science and Technology,Beijing Normal University,Beijing 100875,China
    2.Virtual Reality and Visualization Technology Institute,Beijing Normal University,Beijing 100875,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-09-11 Published:2011-09-11

摘要: 音乐特征数据库是实现哼唱音乐检索系统的重要基础。对MIDI进行分析,从MIDI主音轨中提取主旋律特征向量构建音乐特征数据库,同时提出一种对MIDI旋律进行切分的算法,以一句歌词作为步进进行检索。与原有的基于近似符号串匹配算法不同,自动断句能够极大地提高检索准确率,并且节约检索时长。

关键词: 音乐检索, MIDI主旋律特征, 绝对时间, 乐句分割

Abstract: Musical feature database is the foundation of music retrieval.Based on MIDI(Musical Instrument Digital Interface) analysis,feature vectors are extracted from the main MIDI track in order to construct the music database.Dividing the melody of MIDI is a new method which can retrieve a piece of music by sentence.Compared with the approximate string matching methods,the proposed method can improve the efficiency of the retrieval obviously.

Key words: musical retrieval, MIDI melody feature, actual time, melody segmentation