▍1. HMM
HMM语音识别,包含主要算法,进行语音识别(HMM speech recognition, contains the main algorithm for speech recognition)
HMM语音识别,包含主要算法,进行语音识别(HMM speech recognition, contains the main algorithm for speech recognition)
LMS自适应滤波算法是很常见的滤波算法。本代码包括常用的LMS自适应滤波算法,如基本LMS算法,解相关LMS算法,滤波型LMS算法,变换域LMS算法等。(LMS adaptive filtering algorithm is a common filtering algorithm. This code, including commonly used LMS adaptive filtering algorithms, such as the basic LMS algorithm, decorrelation LMS algorithm, filter-based LMS algorithm, transform domain LMS algorithm.)
利用GMM训练模型,并用于说话人识别等相关领域,有不错的效果(GMM apply for text to speech)
分段信噪比测试,主要是用于语音增强,语音编码后的测试使用(segment SNR test, primarily for speech enhancement, speech coding after testing)
近场的MUSIC算法,可用于近场噪声源识别(Near-field MUSIC algorithm can be used for near-field noise source identification)
语音信号的时域频域分析,从短时能量到语谱图,以及线性预测参数和梅尔倒谱系数等等(Speech signal in time domain frequency domain analysis, from the short-term energy to the spectrogram, and the linear prediction parameters and the Mel cepstral coefficients, etc.)
功率倒置算法的LMS实现,因为自己遇到了点问题,本人一直在找这个程序,没找到,故自己重新检查把问题发现了,相信如果你要实现的话可能会遇到这个问题祝你好运!(Power inversion algorithm LMS implementation, because they encountered a point problem, I ve been looking for this program, did not find it to re-examine the problem yourself discovered, I believe if you want to achieve, then you may encounter this problem Good luck!)
图像识别,可以识别出图片中的需要的水果。mtalab实现的。(Image recognition, the image can be identified in fruit required. mtalab achieved.)
使用TD-PSOLA(td-psola、psola)算法,做了一个语音合成,实现语音声调的变调,时长的变化等功能。参考praat源码,提取出其合成方法,效果不错。需要提供pitchtier、durationtier、pointprocess等准换信息文本(可由praat产生)供readfile函数读入(Use TD-PSOLA (TD-PSOLA, PSOLA algorithm, made a speech synthesis, speech tone tone sandhi, long-term changes in the function. Reference Praat source code, extract its synthetic method, the effect of the same.)
本文介绍MVDR算法实现及其改进 用于多麦克风语音增强(The minimum variance distortionless response (MVDR), originally developed by Capon for frequency-wavenumber analysis, is a very well established method in array process-ing. It is also used in spectral estimation. The aim of this paper is to show how the MVDR method can be used to es-timate the magnitude squared coherence (MSC) function, which is very useful in so many applications but so few methods exist to estimate it)
这 里主要对LMS算法及一些改进的LMS算法(NLMS算法、变步长LMS算法、变换域LMS算法)之间的不同点进行了比较,在传统的LMS算法的基础上发 展了LMS算法的应用。另一方面又从RLS算法的分析中对其与LMS算法的不同特性进行了比较。(Here mainly on the LMS algorithm and some improvements of the LMS algorithm (NLMS algorithm, variable step size LMS algorithm, transform domain LMS algorithm) between the different points of comparison, in the traditional LMS algorithm developed on the basis of the application of the LMS algorithm. On the other hand from the analysis of RLS algorithm and LMS algorithm for its different characteristics compared.)
design of an equalizer for speech processing with using Parks-McClellan algorithm
利用matlab提取声音的基本特征,包络、MFCC、声谱图、能量。代码不复杂,但是省去大家找这些的时间。(The basic feature extraction using matlab sound envelope, MFCC, sonograms, energy. Code is not complicated, but we look for these omitted time.)
利用所给的中心削波,计算自相关/AMDF代码,选取一段语音,使用Praat预估其基音周期范围,合理设置预估的极值点距离等参数,计算并画出语音的基音频率曲线(By using the given center clipping, the autocorrelation /AMDF code is calculated, a speech is selected, the range of the pitch period is estimated by Praat, the estimated distance of the extreme point is set up reasonably, and the pitch frequency curve of the speech is calculated and drawn.)