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A Study on Music Summarization  

Kim Sung-Tak (School of Engineering, Information and Communications University)
Kim Sang-Ho (School of Engineering, Information and Communications University)
Kim Hoi-Rin (School of Engineering, Information and Communications University)
Choi Ji-Hoon (Digital Broadcasting Research Division, ETRI)
Lee Han-Kyu (Digital Broadcasting Research Division, ETRI)
Hong Jin-Woo (Digital Broadcasting Research Division, ETRI)
Publication Information
Journal of Broadcast Engineering / v.11, no.1, 2006 , pp. 3-14 More about this Journal
Abstract
Music summarization means a technique which automatically generates the most importantand representative a part or parts ill music content. The techniques of music summarization have been studied with two categories according to summary characteristics. The first one is that the repeated part is provided as music summary and the second provides the combined segments which consist of segments with different characteristics as music summary in music content In this paper, we propose and evaluate two kinds of music summarization techniques. The algorithm using multi-level vector quantization which provides a repeated part as music summary gives fixed-length music summary is evaluated by overlapping ration between hand-made repeated parts and automatically generated summary. As results, the overlapping ratios of conventional methods are 42.2% and 47.4%, but that of proposed method with fixed-length summary is 67.1%. Optimal length music summary is evaluated by the portion of overlapping between summary and repeated part which is different length according to music content and the result shows that automatically-generated summary expresses more effective part than fixed-length summary with optimal length. The cluster-based algorithm using 2-D similarity matrix and k-means algorithm provides the combined segments as music summary. In order to evaluate this algorithm, we use MOS test consisting of two questions(How many similar segments are in summarized music? How many segments are included in same structure?) and the results show good performance.
Keywords
음악요약;다중레벨 벡터양자화;2-D 유사도 행렬;k-means 알고리즘;
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