To highly accurately synchronize display of words and musical scores and reproduction of an acoustic signal.
A storage device 14 stores musical sound data DA designating time series of musical sound composing musical pieces and display data DB designating time series of words of the musical pieces. A first feature extraction part 42 generates a feature amount in each unit section F1 of an acoustic signal P1 supplied from a signal supply device 80. A second feature extraction part 46 generates a feature amount in each unit section F2 of an acoustic signal P2 converting the musical sound data DA. A synchronization analysis part 48 specifies, for the acoustic signal P2, a synchronization section σS resembled by the feature amount in each of a plurality of reference sections σREF dividing the acoustic signal P1 on a time axis. A display control part 60 displays characters designated by the display data DB on a display 72 on the basis of processing result of the synchronization analysis part 48 so as to be synchronized with reproduction of the acoustic signal P1.
| JPS5596993 | AUTOMATIC PLAYING UNIT |
HASHIMOTO SEIICHI
UMEYAMA YASUYUKI
| JP2004212473A | 2004-07-29 | |||
| JP2009014923A | 2009-01-22 | |||
| JP2003044043A | 2003-02-14 | |||
| JPH08115097A | 1996-05-07 |
CSNJ200910054120; 大塚琢馬他: '"歌唱ロボットのためのビート情報とメロディ・ハーモニー情報の統合による音楽音響信号と楽譜の実時間同期' 情報処理学会第７１回全国大会講演論文集 , 200903, ｐｐ．２-２４３〜２-２４４
Yashiro Hitoshi
Taro Takahashi
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