捕获麦克风音频流使用.NET Framework [英] Capture a Microphone Audio Stream Using .NET Framework

问题描述

我需要捕获从麦克风输入流在我的应用程序，这是写在VB.NET。我需要能够到c使用LAME MP3它这个数据传输到一个文件或通过HTTP和可能的EN $ C $。任何人可以帮助我开始使用呢？

I need to capture the input stream from a microphone in my application, which is written in VB.NET. I need to be able to stream this data to a file or over HTTP and possibly encode it using LAME MP3. Can anybody help me get started with this?

感谢您！

推荐答案

如果你想有一个.NET解决方案，你可以检查出 n音讯这是一个开放源码音频库。看 WaveInStream 类（或 WaveIn 最新code）。这将让你打开麦克风，并获得包含最新捕获的字节事件。这将是很容易的，然后传递到流。

If you want a .NET solution, you can check out NAudio which is an open source audio library. Look at the WaveInStream class (or WaveIn in the latest code). This will let you open a microphone, and receive events containing the latest captured bytes. This would be quite easy then to pass on to a stream.

至于使用LAME编码的MP3，一种方法我见过用的是传递声音通过标准输入到lame.exe和读取标准输出的MP3。这是我觉得比获得保留的LAME DLL和写作互操作的包装更容易。

As for encoding MP3 using LAME, one approach I have seen used is to pass the audio to lame.exe via stdin and read the mp3 from stdout. This is I think easier than getting hold of a LAME DLL and writing interop wrappers for it.

更新：我已经创建了一个使用n音讯从麦克风录制一个例子项目，瘸子保存为MP3格式的 HTTP：//voicerecorder.$c$cplex.com 。见我在的Coding4Fun 文章这里。

Update: I have created an example project that uses NAudio to record from the microphone, and LAME to save as MP3 at http://voicerecorder.codeplex.com. See my article at Coding4Fun here.

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