发明授权
US08538565B2 Music playing apparatus, music playing method, recording medium storing music playing program, and integrated circuit that implement gapless play
有权
音乐播放装置,音乐播放方法,存储音乐播放程序的记录介质和实现无间隙播放的集成电路
- 专利标题: Music playing apparatus, music playing method, recording medium storing music playing program, and integrated circuit that implement gapless play
- 专利标题(中): 音乐播放装置,音乐播放方法,存储音乐播放程序的记录介质和实现无间隙播放的集成电路
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申请号: US12596715申请日: 2009-02-19
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公开(公告)号: US08538565B2公开(公告)日: 2013-09-17
- 发明人: Takahiro Kawakami , Masaaki Morioka , Junichi Nakahashi , Yukihiko Kimura
- 申请人: Takahiro Kawakami , Masaaki Morioka , Junichi Nakahashi , Yukihiko Kimura
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Greenblum & Bernstein, P.L.C.
- 优先权: JP2008-042007 20080222
- 国际申请: PCT/JP2009/000709 WO 20090219
- 国际公布: WO2009/104402 WO 20090827
- 主分类号: G06F17/00
- IPC分类号: G06F17/00
摘要:
A music playing apparatus includes: a sound and silence determining unit determining whether or not each frame included in first and second output PCM data is a sound frame including a sample having an output level not lower than a predetermined threshold; a connection point extracting unit extracting a candidate connection point being a sample having a largest variation in a lean of a PCM waveform, from each of the determined sound frames; an end detecting unit detecting candidate connection points included in a last sound frame of the first output PCM data and an initial sound frame of the second output PCM data, respectively, as a first connection point and a second connection point; and a tune continuously-output unit connecting the first output PCM data to the second output PCM data at the first and the second connection points, and playing the connected data.
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