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Software-IPCA
Incremental Principal Component Analysis
- 2011-05-02 22:22:48下载
- 积分：1
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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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xuanzexinghuatu
一个matlabGUI，可以对mat文件中的多个信号进行线性分析（最多三个）(A matlabGUI, can document a number of mat-signal linear analysis (a maximum of three))
- 2009-03-19 20:08:37下载
- 积分：1
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Method-of-Converting-Speech-Codec-Formats-between-
Abstract - In this paper, proposed an efficient method of
converting speech codec formats between G.723.1 and
G.729А. The proposed method is composed of four steps:
LSP conversion, pitch conversion, adaptive codebook
search and fixed codebook search. Subjective results
shown that the proposed method has shorter delay than
classical tandem method. ( Abstract- In this paper, proposed an efficient method of
converting speech codec formats between G.723.1 and
G.729А. The proposed method is composed of four steps:
LSP conversion, pitch conversion, adaptive codebook
search and fixed codebook search. Subjective results
shown that the proposed method has shorter delay than
classical tandem method. )
- 2010-07-02 19:53:12下载
- 积分：1
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0712253
I wrote this program for coloring any map with only 4 colors. Input for it is an bitmap file with 24 bit colors (must gray/scale). Output is a bitmap which is colored with maximum 4 colors.
- 2009-12-01 02:34:09下载
- 积分：1
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TimeFrequencyAnalysis
时频分析基本理论 时频分析工具箱 时频分析的应用实例(Time-Frequency Analysis)
- 2010-05-13 15:55:45下载
- 积分：1
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SetPieChartColors.m
Specific color setting for Pie3 MatLab function
- 2012-07-17 13:05:39下载
- 积分：1
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双线性滤波器
一个双线性滤波器的设计，用MAtlab编的 (A bilinear filter design, Matlab series)
- 2008-12-18 00:09:59下载
- 积分：1
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wawsversion2
用于描述谐波叠加法，可以修改参数已完成要做的叠加！(Used to describe the harmonic superposition method, you can modify the parameters to do the overlay has been completed!)
- 2021-03-26 20:29:12下载
- 积分：1
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Matlab
详细比较了Matlab与其他 语言的优点，并讨论了用Matlab进行有限元编程的技巧(Matlab and a detailed comparison of the advantages of other languages, and discussed the finite element with Matlab programming skills)
- 2009-05-15 13:37:12下载
- 积分：1
