如何从默认音频设备录制和播放音频

Question

我似乎无法从默认音频设备录制音频，并将其播放到另一个音频设备上。 我不想录制麦克风，但音频设备..

当我演电影，我可以听到声音，通过我的耳机，我想那声音复制到任何音频设备，我选择..

如果您有任何建议，这不必须与NAudio ..

据我所知，NAudio不能这样做..

这是我用在这个时候任务的代码，但是只需要输入从我的麦克风：代码片断与n音讯..

void playSoundCopy(int dv0) 
{ 
    disposeWave0();// stop previous sounds before starting 
    var waveOut0 = new WaveOut(); 
    waveOut0.DeviceNumber = dv0; 
    wave0 = waveOut0; 

    Defaultwave0 = new WaveIn(); 
    Defaultwave0.DeviceNumber = (int)GetDefaultDevice(Defaultdevice.FriendlyName); 
    var waveinReader0 = new WaveInProvider(Defaultwave0); 
    wave0.Init(waveinReader0); 

    play0 = false; 
    Thread.Sleep(1000); 

    play0 = true; 
    t0 = new Thread(() => { timeline0(); }); 
    t0.IsBackground = true; 
    t0.Start(); 

    Defaultwave0.StartRecording(); 
    wave0.Play(); 
} 

真正的问题其实是，我不能从记录waveout的设备，只有WaveIn ..

工作结果：

void playSoundCopy(int dv0) 
{ 
    disposeWave0();// stop previous sounds before starting 
    var waveOut0 = new WaveOut(); 
    waveOut0.DeviceNumber = dv0; 
    wave0 = waveOut0; 

    var format0 = Defaultdevice.AudioClient.MixFormat; 
    buffer0 = new BufferedWaveProvider(format0); 
    wave0.Init(buffer0); 

    capture = new WasapiLoopbackCapture(Defaultdevice); 
    capture.ShareMode = AudioClientShareMode.Shared; 
    capture.DataAvailable += CaptureOnDataAvailable; 

    play0 = false; 
    Thread.Sleep(1000); 

    play0 = true; 
    t0 = new Thread(() => { timeline0(); }); 
    t0.IsBackground = true; 
    t0.Start(); 

    capture.StartRecording(); 
    wave0.Play(); 
} 
void CaptureOnDataAvailable(object sender, WaveInEventArgs waveInEventArgs) 
{ 
    try 
    { 
     var itm = new byte[waveInEventArgs.BytesRecorded]; 
     Array.Copy(waveInEventArgs.Buffer, itm, waveInEventArgs.BytesRecorded); 
     buffer0.AddSamples(itm, 0, itm.Length); 
    } 
    catch { } 
} 

Answer 1

您可以捕获音频发送到使用WasapiLoopbackCapture的设备。然后，您可以将其转换为BufferedWaveProvider并用它来馈送另一个输出设备。虽然会引入一些延迟，所以不要指望两个设备同步。