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    • 6. 发明申请
    • SYSTEMS AND METHODS FOR IMPLEMENTING CROSS-FADING, INTERSTITIALS AND OTHER EFFECTS DOWNSTREAM
    • 执行交叉渐变,间断和其他影响下降的系统和方法
    • US20140316789A1
    • 2014-10-23
    • US14358919
    • 2012-11-19
    • Sirius XM Radio Inc.
    • Raymond LoweChristopher WardCharles W. Christine
    • G10L19/008
    • G10L19/167G06F9/5044G10L19/008G10L19/26G11B27/038H04H60/04
    • Systems and methods are presented for cross-fading (or other multiple clip processing) of information streams on a user or client device, such as a telephone, tablet, computer or MP3 player, or any consumer device with audio playback. Multiple clip processing can be accomplished at a client end according to directions sent from a service provider that specify a combination of (i) the clips involved; (ii) the device on which the cross-fade or other processing is to occur and its parameters; and (iii) the service provider system. For example, a consumer device with only one decoder, can utilize that decoder (typically hardware) to decompress one or more elements that are involved in a cross-fade at faster than real time, thus pre-fetching the next element(s) to be played in the cross-fade at the end of the currently being played element. The next elements(s) can, for example, be stored in an input buffer, then decoded and stored in a decoded sample buffer, all prior to the required presentation time of the multiple element effect. At the requisite time, a client device component can access the respective samples of the decoded audio clips as it performs the cross-fade, mix or other effect. Such exemplary embodiments use a single decoder and thus do not require synchronized simultaneous decodes.
    • 呈现用户或客户端设备(例如电话,平板电脑,计算机或MP3播放器)或具有音频播放的任何消费者设备的信息流的交叉衰落(或其他多个剪辑处理)的系统和方法。 多个剪辑处理可以在客户端根据从服务提供者发送的指示来完成,该指示指定(i)涉及的剪辑的组合; (ii)要进行交叉淡入淡出或其他处理的设备及其参数; 和(iii)服务提供者系统。 例如,仅具有一个解码器的消费者设备可以利用该解码器(通常是硬件)来以比实时更快的速度来解压缩交叉渐变中涉及的一个或多个元素,从而将下一个元素预取到 在当前正在播放元素的末尾的交叉淡入淡出中播放。 下一个元素可以例如存储在输入缓冲器中,然后解码并存储在解码的采样缓冲器中,全部在多重元素效应的所需呈现时间之前。 在必要的时间,客户端设备组件可以在解码的音频剪辑执行交叉淡入淡出,混合或其他效果时访问相应的样本。 这样的示例性实施例使用单个解码器,因此不需要同步同步解码。