tailieunhanh - Báo cáo hóa học: "Research Article Music Information Retrieval from a Singing Voice Using Lyrics and Melody Information"

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 Music Information Retrieval from a Singing Voice Using Lyrics and Melody Information | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2007 Article ID 38727 8 pages doi 2007 38727 Research Article Music Information Retrieval from a Singing Voice Using Lyrics and Melody Information Motoyuki Suzuki Toru Hosoya Akinori Ito and Shozo Makino Graduate School of Engineering Tohoku University 6-6-05 Aramaki-Aza-Aoba Aoba-ku Sendai 980-8579 Japan Received 1 December 2005 Revised 28 July 2006 Accepted 10 September 2006 Recommended by Masataka Goto Recently several music information retrieval MIR systems which retrieve musical pieces by the user s singing voice have been developed. All of these systems use only melody information for retrieval although lyrics information is also useful for retrieval. In this paper we propose a new MIR system that uses both lyrics and melody information. First we propose a new lyrics recognition method. A finite state automaton FSA is used as recognition grammar and about 86 retrieval accuracy was obtained. We also develop an algorithm for verifying a hypothesis output by a lyrics recognizer. Melody information is extracted from an input song using several pieces of information of the hypothesis and a total score is calculated from the recognition score and the verification score. From the experimental results retrieval accuracy was obtained with a query consisting of five words. Copyright 2007 Motoyuki Suzuki et al. 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 Recently several music information retrieval MIR systems that use a user s singing voice as a retrieval key have been researched . MELDEX 1 SuperMBox 2 MIRACLE 3 SoundCompass 4 and our proposed method 5 . These systems use melody information in the user s singing voice however the lyrics information is not taken into consideration. Lyrics