音频信号采集波形实时显示

从麦克风读取数据，并用mfcc进行特征提取，最后通过dadboost分离器进行语音分离-Read data from the microphone and used MFCC feature extraction, and finally through the separator dadboost voice separation

利用小波变换对语音信号进行压缩，小波函数db5,分解级数5-Using Wavelet Transform of the voice signal compression, wavelet function db5, decomposition series 5

sndpeek is just what it sounds (and looks) like: real-time 3D animated display/playback can use mic-input or wav/aiff/snd/raw/mat file (with playback) time-domain waveform FFT magnitude spectrum 3D waterfall plot lissajous! (interchannel correlation) rotatable and scalable display freeze frame! (for didactic purposes) real-time spectral feature extraction (centroid, rms, flux, rolloff) available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution. -sndpeek is just what it sounds (and looks) like: real-time 3D animated display/playback can use mic-input or wav/aiff/snd/raw/mat file (with playback) time-domain waveform FFT magnitude spectrum 3D waterfall plot lissajous! (interchannel correlation) rotatable and scalable display freeze frame! (for didactic purposes) real-time spectral feature extraction (centroid, rms, flux, rolloff) available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution.

支持对 声音 的采集,和输出- Supports to sound gathering, with outputs

MPEG-2的音频编码-MPEG-2 audio coding

应用背景在利用codec进行语音数据输入和发送时，可以利用该文件提供的函数对输入和输出的pwm语音数据的音量进行缩放。关键技术对PWM语音数据进行幅值上的缩放，从而达到对codec输入或者输出的pwm语音数据进行缩放的目的。控制的参数是对语音数据进行控制的系数，0值语音数据音量就为0了。

合并两个8位wave文件为一个文件。-mix two 8 bits wave file into one file

完成pcm 16位线性与pcma律转换的几种源码！-Complete pcm 16-bit linear conversion with the law several pcma source!

模拟语音转换成数字 format.it 用于传输语音信号在无线介质使用红外设备带短的距离

就是按输入的时间录音，回放，显示波形及频谱图 录音过程中有动态频谱显示 -Itis input by the time recording, playback, show the waveform and frequency spectrum of dynamic recording process of the spectrum shows