发出计算机中安装的外部声卡的声音 [英] out sound of an external sound card installed in the computer

问题描述

你好，
我具有允许流播放的功能:当我对计算机的麦克风讲话时，声音直接来自计算机的声卡.但是我对此代码有疑问，不允许我在声卡外部发出声音.我在计算机上安装了3个声卡，我希望他发出特定卡的声音.
是否有人可以帮助我.预先感谢您的支持.

这是我在此站点上使用的开始"功能:

Hello,
I have a function that allows out a stream: When I speak into the microphone of the computer the sound comes directly from the computer''s sound card. But I have a problem with this code does not allow me out the sound in a sound card externe.I have 3 soundcards installed on my computer and I want out he sound of a specific card.
Is someone can help me please. Thank you in advance for your support.

Here is the function ''Start'' that I took of this site:

private void Start()
        {
            Stop();
            try
            {
                PaGa.WaveFormatt fmt = new PaGa.WaveFormatt(44100, 16, 2);
                m_Player = new PaGa.WaveOutPlayer(-1, fmt, 16384, 3, new PaGa.BufferFillEventHandler(Filler));
                m_Recorder = new PaGa.WaveInRecorder(-1, fmt, 16384, 3, new PaGa.BufferDoneEventHandler(DataArrived));
            }
            catch
            {
                Stop();
                throw;
            }
        }

推荐答案

Using DirectShow''s Graph Builder[^] you can set and render you output device and test your path

它不能解决您的问题；只是一个重要的注意事项:

这在功能上是正确的，但毫无意义:

It does not solve your problem; just an important side note:

This is functionally correct but pointless:

try {
/...
} catch { //there are no cases when you should catch all and not use an instance of Exception
    Stop();
    throw;
}

正确的模式是这样的:

Correct pattern is this:

try {
/...
} finally { //finally is specially designed for such cases
    Stop();
}

—SA

—SA

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