Audio Codec GSP G711

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

语音是人类的特征之一，不同的人拥有不同的声音，但在一些特殊情况下，人们希望改变声音来隐藏身份。语音变音技术应运而生，通过改变声音的频率、幅值达到改变声音的目的。本作品通过labview中的声音采集及播放模块，达到对声音信号的采集、在不同范围内改变声音的频率。

Delphi Audio COmponents

FreeAmp支持多平台，可以加plugin的音频播放器。支持网络协议。2.1.1版本的源代码，学习MP3播放器，网络播放器的朋友可以参考。-FreeAmp support multi-platform, you can increase the audio player plugin. Network protocol support. 2.1.1 version of source code, learn from MP3 players, network players can refer to a friend.

This project produces a sin wave outout from the sound card from 125 Hz to 8 KHz.

Windows 下修改音频音量（多次修改）-Windows, modify the audio volume (multiple changes)

可以用来测量线路回声消除效果的matlab程序-lines can be used to measure the effects of echo cancellation procedures Matlab

数字键盘发声系统-numeric keypad audible system

下面是自编求线性预测系数的程序，MATLAB编写，可以使用-Below are seeking self coefficient of linear prediction procedures MATLAB prepared, you can use

source code for udio wtermrking in lbview