我想创建一个在拍手后通过麦克风听的软件。

我的第一个实施方法是尝试让软件在听到大音量声音时发出警告。

但我想知道是否有人可以在正确的方向帮助我?

public partial class ClapperForm : Form
{
    WaveIn waveInStream;

    public ClapperForm()
    {
        InitializeComponent();
    }

    private void btnStart_Click(object sender, EventArgs e)
    {
        //start the streaming
        waveInStream = new WaveIn();
        waveInStream.DataAvailable += new EventHandler<WaveInEventArgs>(waveInStream_DataAvailable);
        waveInStream.StartRecording();
    }

    void waveInStream_DataAvailable(object sender, WaveInEventArgs e)
    {
        //check out what volume it is
    }
    private void btnStop_Click(object sender, EventArgs e)
    {
        if (waveInStream != null)
        {
            //Stop streaming
            waveInStream.StopRecording();
            waveInStream.Dispose();

            waveInStream = null;
        }
    }
}

最佳答案

假设您正在录制16位音频(这是默认设置),那么e.Buffer的内容可以这样解释:

for (int n = 0; n < e.BytesRecorded; n += 2)
{
    short sampleValue = BitConverter.ToInt16(e.Buffer, n);
}


然后,您可以寻找Math.Abs​​(sampleValue)的高值。

10-07 12:10