ColorLSu_forever-CSDN博客

原创 msys2 ming2 命令行显示git branch (git-prompt)

shopt -q login_shell || . /etc/profile.d/git-prompt.sh1. 在 /etc/bash.bashrc 中添加上面一行2. /etc/profile.d/git-prompt.sh内容如下：if test -f /etc/profile.d/git-sdk.shthen TITLEPREFIX=SDK-${MSYSTEM#MINGW}else TITLEPREFIX=$MSYSTEMfi...

2021-01-28 16:06:36 342

原创多子带的谱减法(附Python 源码) @Learning Speech enhancement__2

#!/usr/bin/env python# encoding: utf-8'''@author: Kolor@license:@contact: [email protected]@software: pycharm@file: mband.py@time: 2020/12/27 14:22@desc:'''import sysimport librosaimport numpy as npfrom scipy.signal import lfilterimport .

2021-01-03 17:10:29 802 8

原创语音降噪_标准谱减法（附Python源码） @Learning Speech enhancement__1

最近在看speech enhancement 内容，看完谱减法部分后，在网上找相应的代码来看，然后将MATLAB代码转成Python代码，顺便学习一下Python的使用。谱减法的基础实现：论文《Enhancement of speechcorrupted by acoustic noise》提出的实现：算法流程如下：效果如下：这是一段火车站附近的录音，噪声比较平稳；设置的VAD阈值是3dB，一般应用上设置的是6dB虽然floor值的存在填充了频谱中一定的 “...

2020-12-24 00:49:30 1832 5

原创 visual studio 调试Expression: (“unexpected input value； log10 failed”, 0)

#include "stdio.h"#include "math.h"void my_dft(double* x, double* y, double* a, double* b, int n, int sign){ int i, k; double c, d, q, w, s; q = 6.28318530718 / (double)n; for (k = 0; k < n; k++) { w = k * q; a[k...

2020-07-16 21:42:14 1138 1

原创 TDE （Time Delay Estimation）时延估计

最近正在通过网课学习AEC，需要完成线性回声消除的一些简单的代码，第一个问题是需要求出输入信号与参考信号之间的时延。因为时延影响了后面AEC算法的效果，所以对整体的回声消除效果比较重要。一、用互相关的方法完成时延估计The generalized cross-correlation (GCC) is regarded as the most popular approach for est...

2020-05-03 10:17:49 8545

原创 ubuntu 18.04 make neovim遇到的问题

编译日志：mkdir -p buildtouch build/.ran-third-party-cmakemake -C .depsmake[1]: Entering directory '/home/ruihong/neovim/.deps'make[2]: Entering directory '/home/ruihong/neovim/.deps'make[3]: Enter...

2020-04-29 18:00:20 304

Pitch Determination of Human Speech by the Harmonic Product

"Pitch Determination of Human Speech by the Harmonic Product Spectrum, the Harmonic Sum Spectrum and a Maximum Likelihood Estimate," Proceedings of the Symposium on Computer Processing in Communications, Vol. XIX, Polytechnic Press: Brooklyn, New York, (1970), pp. 779-797.

2022-06-07

Enhancement of speech corrupted by acoustic noise.pdf

This paper describes a method for enhancing speech corrupted by broadband noise. The method is based on the spectral noise subtraction method. The original method entails subtracting an estimate of the noise power spectrum from the speech power spectrum, setting negative differences to zero

2020-12-24

sourceinsight4115_112_105_106.zip

2020/06/09 更新 1. 安装原版软件：Source Insight - Version 4.0.0115 2. 替换原主程序：sourceinsight4.exe 3. 导入授权文件(Import a new license file)：si4.52pojie.lic sourceinsight4115.rar

2020-06-13

_基于维纳滤波语音增强算法的改进实现.pdf

在许多场合下采集的语音都会不可避免地混入噪声, 这常常使接收语音的可懂度和清晰度受到严重损伤。在语音识别系统中噪声将使识别率迅速下降, 因为此时从语音信号提取出来的参数被噪声干扰而发生了变化。即使信噪比 SNR 高达 20 dB, 一些语音的共振峰却已经消失于噪声中, 因此研究如何将“ 干净 ”语音从语音和噪声的混合体中提取出来是十分必要的。迄今已有一些有效的技术被用于此领域来减小噪声, 如谱抽取、谐波分析技术和自回归滑动平均 ( Auto- Regressive and Moving Average, ARMA) 模型等, 而维纳( Wiener) 滤波器法也是语音增强的有效方法之一

2020-02-02

cpuid信息查看代码

获取X86系列的CPUID，可以用于加密或绑定产品；可以详细查看CPU支持的功能 cpuInfo [out] An array of four integers that contains the information returned in EAX, EBX, ECX, and EDX about supported features of the CPU.

2020-01-04

authtication+protocal.pdf

通俗易懂的描述对称加密的原理，从最简单的加密方法开始，慢慢解释到需要认证机构的加密方式。 Authentication Protocols and Key Establishment • Like cryptographic algorithms, the design of an authentication algorithm requires a lot of skill and care – don't do this at home! • Using KDCs and CAs allows communication with unrelated peers – trusted intermediate • Performance considerations impact on the design of authentication algorithms • Randomness is both tricky to achieve and important for the result

2019-10-29

The (in)security of proprietary cryptography.pdf

Proprietary cryptography is a term used to describe custom encryption techniques that are kept secret by its designers to add additional security. It is questionable if such an approach increases the cryptographic strength of the underlying mathematical algorithms. The security of proprietary encryption techniques relies entirely on the competence of the semi-conductor companies, which keep the technical description strictly confidential after designing. It is difficult to give a public and independent security assessment of the cryptography, without having access to the detailed information of the design

2019-10-29