文章基本信息

标题：音響信号の振幅を用いるオーケストラ楽曲の楽譜追跡
本地全文：下载
作者：三浦雄文 ; 赤羽歩 ; 佐藤誠等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2007
卷号：61
期号：7
页码：997-1005
DOI：10.3169/itej.61.997
出版社：The Institute of Image Information and Television Engineers
摘要：We researched and developed a new system for score-following of orchestra performances that uses audio-signal amplitude.In the existing score-following system,pitches extracted from the sounds produced during the performance using spectral analysis.These sounds are matched with the pitches notated in the score.However,in orchestra music,many instruments are often played at the same time and the fundamental tones and overtones of these instruments overlap,making pitch-detection very difficult.However,the envelope of the amplitude of the performance forms distinct peaks at the note-onset positions.Therefore,we proposed and implemented a real-time score-following system that matches the amplitude peaks extracted from the performance sounds with the amplitude peaks that can be predicted by reading the score.
关键词：楽譜追跡;リアルタイム;オーケストラ演奏;音響信号の振幅のピーク