rt_lpc is a light-weight application that performs real-time LPC analysis and synthesis. It features the following: real-time LPC analysis real-time LPC synthesis visualization of original, predicted, and error waveforms visualization

this audio retrieval based on the feature extraction such as FFT, STFT, and Power Spectral Density-this is audio retrieval based on the feature extraction such as FFT, STFT, and Power Spectral Density

数字信号处理的傅里叶变换与逆傅里叶变换经典实现，非常具有实用价值-Fourier transform and inverse Fourier transform of digital signal processing to achieve the classic, very practical value

该程序中audiorec.py可以录制一个音频文件，stft.py可以对该文件做短时傅里叶变化进行分析，得到音频文件的频率信息，进而可以根据音频文件的来源判断其中的信息。在压缩包中还包含一个音频文件可以作为例子。- The program audiorec.py can record an audio file, stft.py can make the file changes short time Fourier analysis to obtain frequency informat