IIR 的源代码

8603音乐管理程序 用户:admin 密码:admin-8603 music management program user: admin password: admin888

this a simple source code-this is a simple source code

Software for rockola busine-Software for rockola business

从3gp视频文件中提取出声音数据的源代码-3gp video files from the extracted voice data in the source code

用波形图显示音频文件，可以选择播放某段。-waveform display with audio files, we can choose certain players.

AmrDecoderForSymbian.rar，费了点劲把这套代码移植到了symbian下面-AmrDecoderForSymbian.rar. I had to bring this effort because transplanted to the code below symbian

INTEL IPP g729例子，需要下载intel ipp库。该库非商业版本可以免费下载。-INTEL IPP g729 example, will need to download intel ipp library. Non-commercial version of the library can be downloaded for free.

blackfin533 -audio script-blackfin533-audio script

一个非常好用的CD播放器，界面美观,使用方便（你可以使用热键来代替鼠标）。一位朋友对我说除了不能播放mp3外，实在挑不出什么毛病了。-A very easy-to-use CD player, beautiful interface and easy to use (you can use hotkeys instead of mouse). A friend of mine told me that apart from external mp3 player should not really see anything wrong with a pick.

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.