WebRTC AEC 算法流程图

提取音乐（wav格式）中两种和弦特征：chromagram和tonalcentroid。其中chromagram是12维特征，根据十二平均律而来；tonalcentroid是在十二平均律的基础上加入了和弦结构信息（五度循环圈）得到的六维信息。-Extraction of music (wav format) in the characteristics of the two chords: chromagram and tonalcentroid. Chromagram which is 12-dimensional features, according to十二平均律come tonalcentroid is the basis of十二平均律joined the chord structure of information (five degrees circle) received the six-dimensional information.

FLASH反编器-FLASH-series devices

Delphi7定时播放器源码，未完成的，有兴趣的可以自己完成所有功能-Delphi7 source regular players that have not been completed, interested parties can complete all their functions

c++写的比较规范的读取wav文件然后将其数据保存的数组里。-c++ written in a fairly standard wav file and then read the data saved in the array.

音乐，电子音乐合成。12分律 1.在钢琴演奏中G音的和弦我们常用G7和弦.不用G和弦.为什么?  2.在乐理中G7和弦5724组成音中2音省略只用574为什么?(和声学中五级七和弦省去第五音) 在12平均律中音的频率 G4=392.00Hz B4=493.89Hz D4=293.66Hz F4=349.23Hz  在纯律中音的频率 G4=396.00Hz B4=495.00Hz D4=293.33Hz F4=352.00Hz  在纯律中D音二个的频率.一个由G和弦产生297.00Hz另一个由Dm和弦产生293.33Hz  G4=396 D=396x3/2/2=297 (钢琴无这个频率)  A4=440 Dx3/2=440 D=293.33 (5度相生律.12平均律.纯律皆D=293)  当前G和弦 D4音=293.33Hz故不会合谐.当D4音=297Hz 才会合谐所以G和弦不会合谐  G7和弦才会合谐.因此有经验的作曲家在配合弦时常用G7和弦而不用G和弦.

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

offered the proof of concepts (timing, concurrency, on-the-fly programming) with a generous propensity to explode

播放wav声音格式的源代码-broadcast voice wav format source code

Audio Codec GSP G7-Audio Codec GSP G711

著名的音频编辑软件Audacity源码，版本1-Well-known source Audacity audio editing software, version 1