kdd09transfer.tar

g.729编解码源代码，已经在freescale的处理器上面实现。(G.729 codec source code, has been in the Freescale processors to achieve the above.)

Voice decoder Standard interantional

quatization of audio signal and plot the signal after quantization

G.711是一种由国际电信联盟（ITU-T）订定音频编码方式，又称为ITU-T G.711。 主要用于音频的编解码。(G.711 )

说明：  用matlab实现压缩感知，基追踪（BP）算法，将最小L0问题转化为最小L1问题。(Use matlab to implement compressed sensing, base tracking (BP) algorithm, convert the minimum L0 problem into the minimum L1 problem.)

双通道语音增强算法，消除环境噪声。采用归一化自适应方法，噪噪声抵消10dB，语音保持较好可懂度。(The dual-channel speech enhancement algorithm to eliminate ambient noise. Using normalized adaptive noise noise offset by 10dB, and the voice to maintain good intelligibility.)

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

语音信号的矢量量化，其中vector_quantization.m为读取音频文件，转换成语音帧，求lpc及lsf参数以及进行矢量量化的主程序，a_lsf_conversion.m为主程序调用的lpc转lsf参数的子程序，INLS1.wav为音频文件。(Vector quantization of speech signals, wherein vector_quantization.m to read audio file, converted into speech frames, seeking lpc and lsf parameters and vector quantization of the main program, a_lsf_conversion.m main program calls a subroutine parameter lsf lpc turn, INLS1.wav as an audio file.)

可以对处理后的语音进行一个客观上的评判，提供客观评价因子。(It is possible to make an objective evaluation of the processed speech and provide an objective evaluation factor.)

说明：  光谱预处理auto 光谱预处理center(Spectral pretreatment)