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发明公开
CN102165520A 处理信号的方法和装置 有权

处理信号的方法和装置
摘要：
公开了一种处理信号的方法。本发明包括：接收从多信道信号生成的下混信号和值示多信道信号的属性的空间信息，以上混所述下混信号；从空间信息的头部获得指示IPD值是否用于空间信息的信道间相位差(IPD)编译标记；基于IPD编译标记从空间信息的帧获得IPD模式标记，该IPD模式标记指示IPD值是否用于空间信息的帧；基于IPD模式标记获得在帧中参数时隙的参数频带的IPD值；通过使用先前的参数时隙的IPD值修改IPD值来平滑IPD值；以及通过将已平滑的IPD值应用于所述下混信号来生成多信道信号。
摘要（英）：

A method of processing a signal is disclosed. The present invention includes receiving a downmix signal generated from plural channel signal and spatial information indicating attribute of the plural channel signal to upmix the downmix signal; obtaining inter-channel phase difference (IPD) coding flag indicating whether IPD value is used to the spatial information from header of the spatial information; obtaining IPD mode flag based on the IPD coding flag from the frame of the spatial information, the IPD mode flag indicating whether the IPD value is used to a frame of the spatial information; obtaining the IPD value of parameter band of parameter time slot in the frame, based on the IPD mode flag; smoothing the IPD value by modifying the IPD value by using IPD value of previous parameter time slot; and generating plural channel signal by applying the smoothed IPD value to the downmix signal.

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