A study on dynamic adjustment of the non-uniform quantizer in advanced audio coding 先进音频编码中的非均匀量化器的动态调整研究
Rate-distortion control algorithm in MPEG-4 AAC ( Advanced Audio Coding(AAC) ) 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。
As the core of MPEG-4 audio standard, MPEG-4 AAC ( advanced audio coding ) uses the techniques of Time / Frequency coding, sub-band division and etc, including complicated computations of trigonometric and nonlinear functions. MPEG-4AAC(先进音频编码)作为MPEG-4音频标准的核心,采用了时频编码、子带划分等技术,包含了复杂的三角函数和非线性函数计算。
A New Recursive Architectures for MDCT in Advanced Audio Coding(AAC) and its FPGA Design 先进音频编码中MDCT的新型递归结构及其FPGA设计
As a digital audio compression standard, MPEG-2 / 4 AAC ( Advanced Audio Coding(AAC) ) already becomes the core algorithm of the high quality audio coder of the MPEG-4 Standard, and represents the trends of perceptual audio coding technology. MPEG-2/4AAC(AdvancedAudioCoding,先进音频编码)数字音频压缩标准,已经成为MPEG-4标准中高质量音频编码的核心,代表目前感知音频编码技术的发展方向。