The processing of WAV files, WAV files deal with procedures,

dtmf tone detection fitw sound card and microphone input

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

从USB端口读取数据，每个通道可以独立工作。-read from the USB port data, each channel can work independently.

wave file read

使用多缓冲技术 来实现 小内存情况下，媒体播放的流畅-Using multi-buffering technology to achieve small memory case, the fluid media player

USB PCM驱动，不知道有没有用过，是VISTA系统的-USB PCM

MATLAB在语音信号分析与合成中的应用相关代码，语音信号基本处理包括vad检测，有不少检测的方法，降噪，谱减法，频域维纳滤波等等

这个设计范例展示了如何使用DE2-115 开发板以及一个PS/2 键盘和扬声器，来实现多音电子 键盘。 PS/2 键盘模拟钢琴键盘用于输入按键信息。DE2-115 上的FPGA 芯片用来实现音乐合成器， 生成不同音调的音频信号。连接到DE2-115 开发板上的VGA 显示器用来显示按键动作。

flashmx计算器一个-flashmx a calculator

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.