adpcm_encoder

Speech Technology: A Practical Introduction Topic: Spectrogram, Cepstrum and Mel-Frequency Analysis Kishore Prahallad Email: skishore@cs.cmu.edu Carnegie Mellon University & International Institute of Information Technology Hyderabad

实现基于C语言的G.729A算法的编码程序，可调试成功，其中添加了部分对于程序的理解及注释，方便阅读(Achieve coding procedures G.729A algorithm C language can be successful commissioning, which adds some understanding for the program and notes for easy reading)

说明：  脉冲编码调制(Pulse Code Modulation,PCM)技术编程(Pulse Code Modulation)

说明：  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! !)

这是G.723和G.729的音频编解码的源代码，当在网络带宽不够的时候可考虑采用该语音编码方式。(This is the G.723 and G.729 audio codec source code, When the network bandwidth may be insufficient time to consider the use of the voice coding.)

滤波器设计 　　　产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计低通，带通，高通滤波器对信号进行滤波处理，观察滤波前后信号的频谱。(The filter is designed to generate a continuous signal containing the low, mid, and high frequency components, to be sampled, for spectral analysis, respectively, to design a low-pass, band-pass filter processing is performed by a high-pass filter on the signal, the spectrum of the signal of the observation before and after filtering.)

迁移学习程序，适用于NLP问题，大家可以看看。(To migrate learning program suitable for NLP problems)

基于melp算法的语言编码传输，用于语言压缩传输(Speech coding transmission based on MELP algorithm)

优化的G729通信包，自定义按钮、通信包。语音的延迟处理，太多东西值得我们去学习。解压密码vscodes.com(G729-optimized communications package, custom button, communications package. Voice of the delay in processing, too many things worth learning. Unzip password vscodes.com)

假设一段语音信号，用其作为序列，编程实现LBG算法产生码书。(Assuming a speech signal, use it as a sequence, programming the LBG algorithm to generate the codebook.)