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  2013, Vol. 26 Issue (7): 643-647    DOI:
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Liquid State Machine Based Music Chord Sequence Recognition Algorithm
ZHANG Guan-Yuan1,2,WANG Bin1
1.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190
2.University of Chinese Academy of Sciences,Beijing 100049

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Abstract  A chord sequence recognition algorithm based on Liquid State Machine (LSM) is presented. Firstly,the music signal is segmented and Pitch Class Profile feature is extracted for every frame. Then,a LSM model is achieved after training. Two kinds of Bizarre Chord,chord appears probability vector and chord transformation matrix,are presented to post-process the chord sequence outputted by LSM. 8 sets of experimental data from neural network model,hidden Markov mode,echo state network model and LSM model show that the LSM gets a good performance,and the post-processing method also effectively improves the recognition accuracy.
Key wordsChord Sequence Recognition      Liquid State Machine      Music Information Retrieval      Pattern Classification     
Received: 04 February 2013     
ZTFLH: TP391.4  
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ZHANG Guan-Yuan
WANG Bin
Cite this article:   
ZHANG Guan-Yuan,WANG Bin. Liquid State Machine Based Music Chord Sequence Recognition Algorithm[J]. , 2013, 26(7): 643-647.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2013/V26/I7/643
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