声音采集播放程序

linux下简单好用的音频文件播发软件，支持wav等基本格式，用GNU C写的，可以方便的移植到ARM等嵌入式设备上。-under Linux simple and easy to transmit audio software, and other basic support wav format, write using the GNU C, can easily be transferred to ARM, and other embedded devices.

blackfin533 -audio script-blackfin533-audio script

spilite ac3 stream from dvd vob file

libogg++ is a C++ library implementing Ogg. It is designed to be independent of the specific codecs for the interleaved data streams

用c#编写的音乐播放器。可播放mp3、wma等格式，带显示lrc歌词模式。

Play WAV files in windows. Pascal source file.

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.

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.

These are the source codes of the book, Frazier M W. "An Introduction to Wavelets Through Linear Algebra" [M]. New York: Springer, 1999. I wrote them in 2007. All the figures in the book can be reproduced by scripts. Enjoy it.

echo cancellation source code