公开(公告)号：US07917370B2

公开(公告)日：2011-03-29

申请号：US11934912

申请日：2007-11-05

申请人： Tsung-Han Tsai ,  Chun-Nan Liu ,  Hsing-Chuang Liu

发明人： Tsung-Han Tsai ,  Chun-Nan Liu ,  Hsing-Chuang Liu

IPC分类号： G10L19/00

CPC分类号： G10L19/02

摘要： A configurable common filterbank processor applicable for various audio standards and its processing method. Inverse modified discrete cosine transform (IMDCT) and window and overlap-add (WOA) decoding operations required by AC-3 and AAC, and IMDC, WOA, and matrixing decoding operations required by MP3 are divided into several different modes, and a quick algorithm is provided for expediting the operation of these modes, and a hardware architecture is designed universally for these modes, so that the hardware architecture can be applicable for the decoding operations of three different audio standards, respectively AC-3, AAC and MP3, to expand the scope of applicability of a decoder.

摘要翻译： 适用于各种音频标准的可配置公共滤波器组处理器及其处理方法。 AC-3和AAC要求的逆修改离散余弦变换（IMDCT）和窗口和重叠加法（WOA）解码操作以及MP3所需的IMDC，WOA和矩阵解码操作分为几种不同的模式，一种快速算法 是为了加快这些模式的运行而设计的，硬件体系结构被普遍用于这些模式，因此硬件架构可以适用于三种不同音频标准的解码操作，分别为AC-3，AAC和MP3，以扩展 解码器的适用范围。

公开(公告)号：US20090063160A1

公开(公告)日：2009-03-05

申请号：US11934912

申请日：2007-11-05

申请人： Tsung-Han Tsai ,  Chun-Nan Liu ,  Hsing-Chuang Liu

发明人： Tsung-Han Tsai ,  Chun-Nan Liu ,  Hsing-Chuang Liu

IPC分类号： G10L19/00

CPC分类号： G10L19/02

摘要： A configurable common filterbank processor applicable for various audio standards and its processing method. Inverse modified discrete cosine transform (IMDCT) and window and overlap-add (WOA) decoding operations required by AC-3 and AAC, and IMDC, WOA, and matrixing decoding operations required by MP3 are divided into several different modes, and a quick algorithm is provided for expediting the operation of these modes, and a hardware architecture is designed universally for these modes, so that the hardware architecture can be applicable for the decoding operations of three different audio standards, respectively AC-3, AAC and MP3, to expand the scope of applicability of a decoder.

摘要翻译： 适用于各种音频标准的可配置公共滤波器组处理器及其处理方法。 AC-3和AAC要求的逆修改离散余弦变换（IMDCT）和窗口和重叠加法（WOA）解码操作以及MP3所需的IMDC，WOA和矩阵解码操作分为几种不同的模式，一种快速算法 是为了加快这些模式的运行而设计的，硬件体系结构被普遍用于这些模式，因此硬件架构可以适用于三种不同音频标准的解码操作，分别是AC-3，AAC和MP3，以扩展 解码器的适用范围。