A real-time embedded design of MPEG-4 visual simple profile and advanced audio coding decoder using Digital Signal Processor and ARM9 core are presented in this paper.

文中提出应用数字信号处理器和微控制处理器ARM9核的MPEG-4视频简易框架和高级音频编码解码器的实时嵌入式设计。

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Rate-distortion control algorithm in MPEG-4 AAC(Advanced Audio Coding) needs to search Huffman code books many times to obtain the reference number of the current consumed bits.

AAC的码率失真控制算法需要多次检索霍夫曼码书以获得当前状态比特消耗的参考值。

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With Advanced Audio Coding it takes only 12 minutes, with little effect on tone.

FORBES: Aural Surgery

But Dolby claims its newly introduced Advanced Audio Coding standard does it better.

FORBES: Aural Surgery