如何将系统麦克风音频流传输到连接设备麦克风音频流

I am trying to attach USB device used for tele calling which have pnp sound controller for mic and speaker. Now i have two speaker and two mic for input output as shown in image below.. Now my motive is to transfer audio stream from system mic to usb mic and from usb speaker to system speaker.

我尝试使用虚拟电缆软件解决这个问题，但是我需要依赖第三方。使用 c# 可以实现什么可能的解决方案。

我对此一无所知，所以不知道如何开始。谷歌搜索后我发现

1. CS Core
2. N Audio

可以帮助我我不知道如何。

 public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        List<NAudio.Wave.WaveInCapabilities> sources = new List<NAudio.Wave.WaveInCapabilities>();

        for (int i = 0; i < NAudio.Wave.WaveIn.DeviceCount; i++)
        {
            sources.Add(NAudio.Wave.WaveIn.GetCapabilities(i));
        }

        sourceList.Items.Clear();

        foreach (var source in sources)
        {
            ListViewItem item = new ListViewItem(source.ProductName);
            item.SubItems.Add(new ListViewItem.ListViewSubItem(item, source.Channels.ToString()));
            sourceList.Items.Add(item);
        }
    }

    NAudio.Wave.WaveIn sourceStream,sourceStream1 = null;
    NAudio.Wave.DirectSoundOut waveOut = null;

    private void button2_Click(object sender, EventArgs e)
    {
        if (sourceList.SelectedItems.Count == 0) return;

        int deviceNumber = sourceList.SelectedItems[0].Index;

        sourceStream = new NAudio.Wave.WaveIn();
        sourceStream.DeviceNumber = 0;
        sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(deviceNumber).Channels);



        NAudio.Wave.WaveInProvider waveIn = new NAudio.Wave.WaveInProvider(sourceStream1);
        sourceStream.
        waveOut = new NAudio.Wave.DirectSoundOut();
        waveOut.Init(waveIn);

        sourceStream1.StartRecording();
        waveOut.Play();
    }

    private void button3_Click(object sender, EventArgs e)
    {
        if (waveOut != null)
        {
            waveOut.Stop();
            waveOut.Dispose();
            waveOut = null;
        }
        if (sourceStream != null)
        {
            sourceStream.StopRecording();
            sourceStream.Dispose();
            sourceStream = null;
        }
    }

    private void button4_Click(object sender, EventArgs e)
    {
        button3_Click(sender, e);
        this.Close();
    }
}

使用此代码我可以将麦克风音频发送到扬声器，但我如何使用它来实现我的任务。

实际上，如果不编写任何自定义驱动程序，就无法做到这一点。您无法将音频数据渲染到输入设备。输入设备用于读取数据。输出设备（扬声器）用于写入数据。

有些程序（例如虚拟音频线）可以使用自定义驱动程序来绕过这些限制。