TAILIEUCHUNG - Báo cáo hóa học: " Research Article Automatic Genre Classification of Musical Signals"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Automatic Genre Classification of Musical Signals | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2007 Article ID 64960 12 pages doi 2007 64960 Research Article Automatic Genre Classification of Musical Signals Jayme Garcia Arnal Barbedo and Amauri Lopes Departamento de Comunicaẹões Faculdade de Engenharia Eletrica e de Computaẹão FEEC Universidade Estadual de Campinas UNICAMP Caixa Postal 6101 Campinas 13083-852 Brazil Received 28 November 2005 Revised 26 June 2006 Accepted 29 June 2006 Recommended by George Tzanetakis We present a strategy to perform automatic genre classification of musical signals. The technique divides the signals into milliseconds frames from which 4 features are extracted. The values of each feature are treated over 1-second analysis segments. Some statistical results of the features along each analysis segment are used to determine a vector of summary features that characterizes the respective segment. Next a classification procedure uses those vectors to differentiate between genres. The classification procedure has two main characteristics 1 a very wide and deep taxonomy which allows a very meticulous comparison between different genres and 2 a wide pairwise comparison of genres which allows emphasizing the differences between each pair of genres. The procedure points out the genre that best fits the characteristics of each segment. The final classification of the signal is given by the genre that appears more times along all signal segments. The approach has shown very good accuracy even for the lowest layers of the hierarchical structure. Copyright 2007 J. G. A. Barbedo and A. Lopes. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION The advances experienced in the last decades in areas as information communication and media technologies have made available a .

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