一个非常漂亮的迷你MP3播放器，强烈推荐。学习多媒体编程…

DSP上优化的G.729A代码，运行效果占CPU11%，是不可多得的代码，可直接在DSP中编译运行。-Optimized ITU G729.A source code running on DSP,use 11 CPU resource, can be compiled and executed on DSP, very useful.

一个非常漂亮的迷你mp3播放器，强烈推荐。 对于学习多媒体编程有莫大的帮助。 -a very beautiful mini mp3 player, strongly recommended. Learning multimedia programming be of great help.

读取单通道pcm格式音频文件的程序，稍加修改即可作为读取较大音频文件并作相应处理，实际中笔者将该程序和其它程序结合，完成了许多先读取部分文件，在作后续处理的试验。-read channel PCM audio file format of procedures, little changes can be read as larger audio files and dealt with accordingly, in reality the author this program and other procedures, many completed the first reading some documents, as a follow-up to the test.

python源代码，界面美观，能实现音乐播放，变频，混响，画波形图等功能，原数字信号处理作业。本文读取wav文件，通过不同的滑动条调节我们需要实现的功能的参数，最后分别实现音乐播放，画图，变频，混响等功能。

G711A/U的编解码，测试可用，不过噪声比较大-G711A/U codec, test available, but relatively large noise

提供对标准.wav文件的解析。处理了wave文件的头部和数据段，分别读取到一个缓冲区中，并且提取出波特率、采样位数等信息。-standard of wave file analyzing.do with wave file head and data segment, reading to each cache, and pick up baud,sampling rate, etc. info.

一个播放WAV文件的实例程序，采用的是sndPlaySound函数，代码简介，可循环播放WAV文件，适用于只想简单实现播放WAV文件功能的场合。-a example of playing wave file, using sndPlaySound() function.simply source ,may recycle playing wave file.may for simply playing wave file.

单片机spi模式读写sd卡，用串口显示助手显示，可以在sd卡内创建，删除文件，重命名文件

this a online message board system.it contains the basic java techology and JSP ,servlet also used in the actions.-this is a online message board system.it contains the basic java techology and JSP ,servlet also used in the actions.