Detecting beat information using a diverse set of correlations
    1.
    发明授权
    Detecting beat information using a diverse set of correlations 有权
    使用多种相关性来检测节拍信息

    公开(公告)号:US08878041B2

    公开(公告)日:2014-11-04

    申请号:US12472777

    申请日:2009-05-27

    IPC分类号: G04B13/00

    摘要: A beat analysis module is described for determining beat information associated with an audio item. The beat analysis module uses an Expectation-Maximization (EM) approach to determine an average beat period, where correlation is performed over diverse representations of the audio item. The beat analysis module can determine the beat information in a relative short period of time. As such, the beat analysis module can perform its analysis together with another application task (such as a game application task) without disrupting the real time performance of that application task. In one application, a user may select his or her own audio items to be used in conjunction with the application task.

    摘要翻译: 描述用于确定与音频项目相关联的节拍信息的拍子分析模块。 节拍分析模块使用期望最大化(EM)方法来确定平均拍摄周期,其中在音频项目的不同表示上执行相关性。 拍子分析模块可以在相对较短的时间段内确定拍子信息。 因此,拍子分析模块可以与另一应用任务(诸如游戏应用任务)一起执行其分析,而不会中断该应用任务的实时性能。 在一个应用中,用户可以选择他或她自己的与应用任务一起使用的音频项目。