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Laplace
传统的短时谱估计语音增强算法通常假设语音谱分量相互独立，没有考虑语音谱分量间的相关性。针对这
一问题，该文提出一种新的基于多元Laplace分布模型的短时谱估计算法。首先，假设语音的离散余弦变换(DCT)
系数服从多元Laplace分布，以此利用谱分量间的相关性；在此基础上，利用多元随机矢量的高斯尺度混合模型表
示，推导得到语音DCT系数矢量的最小均方误差(MMSE)估计的解析表达式；并进一步推导了基于该分布模型的
语音存在概率，对最小均方误差估计子进行修正。实验结果表明，该算法在抑制背景噪声和减少语音失真等方面优
于传统的语音增强方法。(The spectral components of speech are usually assumed to be independent in traditional short-time
spectrum estimation, which is not the case in practice. Tosolve this problem, a new speech enhancement algorithm
with multivariate Laplace speech model is proposed in this paper. Firstly, the speech Discrete Cosine Transform
(DCT) coefficients are modeled by a multivariate Laplace distribution, so the correlations between speech spectral
components can be exploited. And then a Minimum-Mean-Square-Error (MMSE) estimator based on the proposed
model is derived using a Gaussian scale mixture representation of random vectors. Furthermore, the speech
presence uncertainty with the new model is derived to modify the MMSE estimator. Experimental results show
that the developed method has better noise suppression performance and lower speech distortion compared to the
traditional speech enhancement method. )
- 2014-01-18 10:44:40下载
- 积分：1
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3
说明： 一种很实用的风力机低电压穿越相关模型搭建及分析。(wind power model)
- 2014-10-15 22:58:12下载
- 积分：1
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Courses
this simulation results in PSD of the transmitting pulse.
- 2013-05-19 00:16:08下载
- 积分：1
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poincare_zip
本程序提供了两种Poincare曲线的程序源代码，并针对单摆转子系统进行了绘制。(This program provides two kinds of Poincare curve program source code, and for the simple pendulum rotor system has been drawn.)
- 2017-09-14 08:56:04下载
- 积分：1
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adaptivehuffman
adaptivehuffman经测试，绝对能用，大家一起来分享(adaptivehuffman)
- 2010-05-16 11:26:39下载
- 积分：1
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Face-Recognization
Efficient Face Detection
- 2014-10-13 17:19:54下载
- 积分：1
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rumenmatpower
如何使用MATPOWER,方便易懂,值得学习(How to use the MATPOWER, easy to understand, it is worth learning)
- 2020-09-02 03:38:09下载
- 积分：1
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Main_NCS
一个很基础的预测控制，很简单的matlab程序(predictive control)
- 2009-09-22 17:34:12下载
- 积分：1
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MTLAB
讲解如何使用Matlab进行建模与仿真，并对仿真结果进行分析和可视化(Explain how to use Matlab for modeling and simulation, and simulation results for analysis and visualization)
- 2008-01-26 20:14:24下载
- 积分：1
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matlab11
matlab仿真程序小练习，五个小程序的练习，很有参考的价值(matlab simulation program of small exercises, five small program of exercises, the value of a good reference)
- 2010-10-22 17:37:15下载
- 积分：1
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