又一个DirectSound实现混音的例子

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.

DA转换 多波形发生器 方波 三角波 锯齿波-Waveform Generator Multi-waveform

由PC串口按照特定协议提供幅度谱和相位谱数据，labview通过串口接收后显示接收数据和图形，有单次接收和自动接收2种模式，因为使用串口传输数据，通讯速率收到限制，自动接收的刷新速度不小于300ms。该接收显示程序应用于FPGA实现的音频频谱分析模块中，由FPGA硬件实现音频信号的FFT变换计算，通过串口传递数据给labview程序。

获取音频设备数量和音频设备名称，并提供选择确定功能-Access to audio equipment and audio equipment, name, and provide choice to determine the functional

改变原始wav音频信号的抽样频率，并且显示处理前后声音信号的频谱.有助于帮助大家理解奈圭斯特抽样定理。-Change the original wav audio signal sampling frequency, and shows the spectrum of sound signal before and after treatment. Helps to help you understand the Nyquist sampling theorem.

适合学习mci的初学者，可以播放wav和avi，界面为mfc,推荐-adapt to the new learner of mci , and it can play WAV and AVI format file , interface is MFC. it is commended!

如何使程序在运行时自动注册ActiveX控件 Last updated on 2007-01-05 01:14:23 单身白领浪漫交友，认准亚洲交友中心 编写Delphi应用程序时，经常会遇到一些ActiveX控件[注：扩展名为OCX的控件或DLL的类型库],它们为应用程序的开发提供了简单的操作途径。然而，这些程序在发布的同时，面临ActiveX控件注册问题。解决途径：一、用安装程序制作打包文件，往往会给增加程序本身的大小，系统重装时，则必须重新安装它；二、用程序本身进行代码编写函数的形式处理它。 使用方法分为两种： 一、直接把可视化的ActiveX控件放到程序中； 二、运行时根据需要实时建立。 如果是直接使用，则应用程序在初始化的过程中会自动寻找、创建所需的ActiveX控件，如果控件没有注册，初始化程序会产生一个异常，捕捉并处理这个异常。 在程序Form中加入一个新的方法： unit UAutoRegActiveX interface-how that process at runtime automatic registration ActiveX Last updated on 2 007-01-05 01:14:23 single white-collar romantic friends. Recognizing the Center for Asian friends Delphi application procedures, often encounter some ActiveX controls [Note : The expansion called OCX controls or the type of DLL] for their application development provide a simple way to operate. However, the issuance of these procedures while facing ActiveX registration. Solution : First, use the setup program produced packaging paper can often increase the size of the p

语音点对点聊天Demo，包括语音的采集，编码，缓冲，解码，播放。-Peer-to-peer voice chat Demo, including the voice of the collection, coding, buffering, decoding, playing.

音频回声抑制算法，提供全部源代码-Audio echo suppression algorithm, provide full source code

dos下通过pc喇叭播放wav流文件-dos pc through loudspeakers broadcast wav document flow