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Only coding parameters of sound generation model • LPC is an example where parameters are a1, a2, …ak , e(n) • Music instrument parameters: pitch, loudness, timbre, …Frequency Masking: If a tone of a certain frequency and amplitude is present, then other tones or noise of similar frequency cannot be heard by the human ear • the louder tone (masker) makes the softer tone The Masking Threshold is used by the audio encoder to determine the maximum allowable quantization noise at each frequency to minimize noise perceptibility: remove parts of signal that we cannot perceive

设计一CQMFB，低通滤波器H0(z)来自一半带滤波器。该半带滤波器的长度为47，通带截至频率ωp = 0.42π，试给出H0 (z)，H1(z)，G0(z)，G1(z)的幅频响应，单位抽样响应并画图。(Design a CQMFB, low-pass filter H0 (z) the half-band filter. The length of the half-band filter 47, the passband cutoff frequency ωp = 0.42π, try to give H0 (z), H1 (z), G0 (z), G1 (z) of the amplitude-frequency response, the unit sample response and Paint.)

能量熵的计算，均值便宜跟踪的示例，小波包分析提取振动信号中的特征频率。( Energy entropy calculation, Example tracking mean cheap, Wavelet packet analysis to extract vibration signal characteristic frequency.)

用matlab语言实现K-MEANS聚类算法(Matlab language used K-MEANS CLUSTERING ALGORITHM)

kalman滤波器的Matlab验证，以及迭代算法的实现(kalman filter Matlab validation, and iterative algorithm)

注水定理，是移动通信原理里的，关于资源分配的基本算法。(water filling Power Allo)

说明：  语音识别mfcc美尔倒谱系数全过程的matlab程序，运行测试能出结果，希望对你们有用，实在没点数才把自己压箱底的东西拿出来,呜呜(Speech Recognition mfcc Mel cepstrum whole process of matlab program, run test can the result, I hope helpful for you, there is really no point only then their things out of bottom pressure, hum)

遗传算法优化BP神经网络，关于y=x1平方+x2平方的(BP neural network genetic algorithm, y = x1square+ x2 square)

matlab环境下节点在不同的采样点下不同的感知性能(matlab environment node sampling points in different perceptions of the performance of different)

数值方法(MATLAB版)(第四版)[Mathews,Fink著,周璐,陈渝,钱方等译](Numerical Methods Using MATLAB)