非常全的mpeg4的音频编码代码,本人进行了重新整理,适合搞音频的同志研究....

ＡＤＰＣＭ　ＴＭＳ３２０Ｃ５４０２压缩与解压源码，附带ＶＣ++控件源码，ＶＢ程序可实现两机对讲-ADPCM TMS320C5402 compression and decompression source code control with VC++ source code, VB program can achieve the two aircraft intercom

ARM2410增加了播放功能的录音机(用WaveInOpen/WaveInClose等底层函数)-ARM2410 increase the playback functions recorders (using WaveInOpen/WaveI nClose bottom function etc.)

部分说明#define MSGVALUE "Value" #define MSGFORMULA "Formula" #define MSGAUTOCALC "AutoCalc" #define MSGFORMDISPLAY "Form" #define MSGFILENAME "Enter the file name of the spreadsheet:" #define MSGNAME "Turbo C MicroCalc Spreadsheet" #define MSGCOLWIDTH "Enter the new column width:" #define MSGNOOPEN "Can t open the file."-explains# define MSGVALUE "Value"# define MSG FORMULA "Formula"# define MSGAUTOCALC "AutoC crossed "# define MSGFORMDISPLAY" Form "# define MS GFILENAME "Enter the file name of the spreadshe et : "# define MSGNAME" Turbo C MicroCalc Spreadshe et "# define MSGCOLWIDTH" Enter the new column w idth : "# define MSGNOOPEN" Can not open the file. "

java录音放音-Java record/play voice

做音视频产品的同志肯定碰到我一样的问题，HD Audio的MicroPhone声音大小调节棒变灰不可调节，我这个程序就是利用Mixer 来辨别是哪种Audio，并Enable它。-Audio and video products that make sure the comrades encountered the same problem I, HD Audio Microphone voice the size of the adjustment rod adjustment is not grayed out, I make use of this procedure is the Mixer to identify which type of Audio, and Enable it.

经过优化的G711和G723.1的语音算法-Optimized G711 and G723.1 voice algorithm

wave file read

         

amr-nb解码源代码，可以在vc平台上运行，通过编译，可移植性好，能够达到理想的效果

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.