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Invention Grant
CN105612578B 用于信号处理的方法和设备 有权

用于信号处理的方法和设备
Abstract:
一种方法包含基于音频信号的高频带部分产生高频带残余信号。所述方法还包含至少部分基于所述音频信号的低频带部分产生经谐波扩展信号。所述方法进一步包含基于所述高频带残余信号、所述经谐波扩展信号和经调制噪声确定混合因子。所述经调制噪声至少部分基于所述经谐波扩展信号和白噪声。
Abstract(English):

A method includes generating a high-band residual signal based on a high-band portion of an audio signal. The method also includes generating a harmonically extended signal at least partially based on a low-band portion of the audio signal. The method further includes determining a mixing factor based on the high-band residual signal, the harmonically extended signal, and modulated noise. The modulated noise is at least partially based on the harmonically extended signal and white noise.

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