This paper analyses the key technologies used in MP3, such as subband filter, psychoacoustical model and dynamic noise allocation.
笔者对MP3所用到的几个关键技术，如子带滤波、心理声学模型、动态噪声分配等做出简明分析。
This paper introduces the key technologies used in MP3, such as subband filter, psychoacoustical model and dynamic noise allocation.
笔者对MP3所用到的几个关键技术，如子带滤波、心理声学模型、动态噪声分配等做出简明分析。
Secondly, introduces MP3 audio compress standard including subband filter bank, psychoacoustic model, adaptive window switch over, Huffman coding, bit reservior, etc.
其次，介绍了MP3音频压缩标准所使用的子带编码、心里声学模型、自适应窗口切换、哈夫曼编码、比特池等关键技术。
It is considered completely in theory why the NBI method based on filter Banks can overcome the disadvantages of FFT method, and the adaptive subband merging is presented.
从理论上详细分析了基于滤波器组的窄带干扰抑制技术能够克服基于FFT频域均衡缺点的主要原因，并在此基础上提出了基于自适应子带合并的算法。
It is considered completely in theory why the NBI method based on filter Banks can overcome the disadvantages of FFT method, and the adaptive subband merging is presented.
从理论上详细分析了基于滤波器组的窄带干扰抑制技术能够克服基于FFT频域均衡缺点的主要原因，并在此基础上提出了基于自适应子带合并的算法。
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