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pujianfa
- 自己写的一个谱减法,在信噪比不太低的时候效果还不错。-one matlab program. the effect is not bad when SNR is not lower.
a_modified_method
- 介绍了改进谱减法的原理及算法。提出在信噪比(sNR)较低的情况下,根据语音短时能量和过零率,判断在无声 或有声期间是否偶然的噪声过高,从而设定合适的参数降低噪声。-Introduced an improved spectral subtraction principles and algorithms. Proposed signal to noise ratio (sNR) lower case, according to voice short-term energy and zero-cr
VariableNoisySpeechEnhancementAlgorithmPerformance
- 语音增强是影响语音识别系统性能的重要成分。为了比较语音增强算法的性能,采用Matlab软件进行了数值仿真,对不同噪声环境下的语音用3种不同的方法进行降噪,采用信噪比、端点检测等方法来降噪效果,并对几种增强算法的性能进行了比较分析。结果表明,在变噪声环境下短时谱MMSE法最佳,谱减法和维纳滤波法各有优点。-Speech enhancement of voice recognition is an important component of system performance. In order
zishiyingjiangzao
- 这里介绍了一种基于自适应滤波的噪声抵消法,采用归一化最小均方误差算法,采集实际噪声环境下各种不同信噪比的带噪语音样本进行降噪处理,实验结果表明,处理后信号的信噪比得到了较大程度的提高,大大改善了听音效果,具有很高的可懂度,且语音自然度好,没有失真;并与谱减法进行了比较,自适应噪声抵消法的降噪幅度比谱减法有一定提高,在听音效果上,用自适应噪声抵消法处理后的语音在清晰度,自然度方面优于谱减法。-Here a novel adaptive noise cancellation method using
hurong
- 基于改进谱减法的语音增强,通过改进和传统的比较得出信噪比-Based on improved spectral subtraction speech enhancement, derived signal to noise ratio through improved and traditional
m.file
- 语音增强算法,谱减法、小波变换以及数学形态学等的语音增强算法针对信噪比、语谱图、去噪情况,分析比较-Speech enhancement algorithm, spectral subtraction, wavelet transform and mathematical morphology speech enhancement algorithm for signal-to-noise ratio, the spectrogram denoising situation analysis
pujian
- 经典语音降噪算法,提高语音信号信噪比和语音可读性,谱减法源代码-Classic voice noise reduction algorithms to improve the readability of signal-to-noise ratio and the voice of the voice signal to spectral subtraction source code
Multiband_Kamath
- 说明:Kamath于2002年提出的多频带谱减法,用于调节频率减法系数以及信噪比。注意:信号的第一个0.25sec用于噪声建模。-Multiband_Kamath.m Descr iption: Multiband spectral subtraction as proposed by Kamath 2002. Uses adjusts the subtraction coefficient with the frequency as well as the SNR. note
谱减法
- 谱减法是一种比较简单的语音降噪的方法,在语音信号具有较高的信噪比的情况下具有良好的降噪功能。(Spectral Subtraction)
voicejiangzao(fft)
- 基于先验信噪比和VAD的谱减法语音降噪处理(Noise reduction by spectral subtraction based on prior SNR and VAD)
pujianfa
- 基于谱减法的简单消噪程序,但是在低信噪比情况下无法达到满意效果,适用于新手入门学习(A simple denoising program based on spectral subtraction)
pujian
- 运用谱减法,对语音信号进行去噪处理并比较处理前后的信噪比(Using spectral subtraction to denoise the speech signal and compare the signal to noise ratio before and after processing)