捕获窗口的在C＃中的音频 [英] Capturing Window's audio in C#

问题描述

是否有可能记录窗口的输出在C＃编程的声音？像记录从你所听到的或立体声输出功能的东西（而不必选择它们）的位？

Is it possible to record Window's output sounds programmatically in C#? A bit like recording something from the "what you hear" or "stereo output" feature (without having to select them)?

推荐答案

这就是所谓的回环记录，它的是的可能在Windows中。如果您有支持环回声卡（我只是检查了我的低端东芝笔记本电脑，它不），你可以直接从回环设备使用记录 waveInOpen 等API，这是很容易在C＃中使用。注意：在这种方式记录音频必然需要在质量的降低，因为该音频信号转换为模拟输出，然后重新数字化，以支持回环接口

This is called loopback recording, and it is possible in Windows. If you have a soundcard that supports loopback (I just checked on my low-end Toshiba laptop, and it doesn't) you can record straight from the loopback device using the waveInOpen etc. API, which is easy to use in C#. Note: recording audio in this way necessarily entails a reduction in quality, since the audio signal is converted to analog for output and then re-digitized to support the loopback interface.

如果你没有声卡，WASAPI会让你做到这一点。我想WASAPI可以用C＃中使用，但它看起来痛苦的。

If you don't have a soundcard, WASAPI will let you do this. I suppose WASAPI can be used with C#, but it looks painful.

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