ETSI发布的用于研究分布式语音识别的前端降噪算法

这是一个从音频信号里提取特征参量的程序，从事此方面的同志，不妨参考-This a signal from the audio extract features parametric procedures, engaged in this regard, the comrades might reference! !

g729b_pc.rar是G729语音压缩标准的附件B的C语言实现标准源代码。-g729b_pc.rar is decode voice compression standards Annex B C Language Standard code.

最新的ITU-T的宽带语音编解码标准G.729.1,是对原先的G.729的最好的调整.码流输出速率可以进行自适应调整.满足未来通信要求.希望对大家有所帮助.-The latest ITU-T

This function computes autocorrelation with a biased scaling.

基于microsoft speech sdk的语音识别代码程序-Microsoft speech sdk-based speech recognition procedures code

此程序为自相关法进行基音检测的程序，主要应用于语音识别。-program for petch detection using auto-correlation method, mainly for speech recognition

这个函数是用来计算离散余弦变换的matlab程序。注意输入的参数要是实数-This function is used to calculate the discrete cosine transform matlab program. Note that if the real number input parameters

SVM-light与matlab的接口,matlab下就能直接调用哟,很有价值哟-SVM-light and Matlab interface directly with Matlab can call yo, value yo

语音信号的频域处理,语音虽然是一个时变、非平稳的随机过程。但在短时间内可近似看作是平稳的。因此如果能从带噪语音的短时谱中估计出“纯净”语音的短时谱，即可达到语音增强的目的。由于噪声也是随机过程，因此这种估计只能建立在统计模型基础上。利用人耳感知对语音频谱分量的相位不敏感的特性，这类语音增强算法主要针对短时谱的幅度估计。 -voice signals in the frequency domain processing, voice is a time-varying, nonstationary random process. But in a short period of time can be approximated as smooth. So if Noisy Speech from the short-term spectrum estimate "pure" voice of the short-term spectrum, and reached speech enhancement purposes. As the noise is random process, which can only be estimated based on statistical models based on. Use ear perception of voice spectrum component of the phase sensitive to the characteristics of such speech enhancement algorithms targeted at the rate of short-term spectral estimation.

此方案基于全极点语音产生模型，编码过程简述如下：首先通过线性预测分析方法提取声道滤波器参数；其次通过合成分析法确定最佳激励矢量；最后将滤波器参数和最佳激励矢量进行编码传输。-This program is based on all-pole speech production model, the encoding process summarized as follows: First, by linear prediction analysis to extract channel filter parameters followed by analysis by synthesis method to determine the best incentive vector Finally, the filter parameters and the best incentive vector encoded transmission.