Question

我想从Kinect录制音频流并将其保存在我的电脑中，所以我在这里引用示例代码。 http://channel9.msdn.com/Series/KinectQuickstart/Audio-Fundamentals

这是我的部分代码。

        var border = new Border() {BorderBrush = Colors.Red, BorderThickness = new Thickness(10)};
        border.Child = new Image();

        SetNativeControl(border);

排队时出现错误＆＃34; bw.Write（format.wFormatTag）;＆＃34;当我编译代码，但WAVEFORMATEX中的其他行没有错误时，我添加了＆＃34; Bass.Net＆＃34;我的参考和使用＆＃34; Un4seen.Bass＆＃34; ，但我还是无法修复它。

Answer 1

看来你正在混合几种不同的SDK。在您提供的链接中，WAVEFORMATEX定义如下：

struct WAVEFORMATEX
{
    public ushort wFormatTag;
    public ushort nChannels;
    public uint nSamplesPerSec;
    public uint nAvgBytesPerSec;
    public ushort nBlockAlign;
    public ushort wBitsPerSample;
    public ushort cbSize;
}

因此，没有枚举值或Un4seen.Bass引用。写头文件的功能略有不同（仅wFormatTag值不同）：

/// <summary>
/// A bare bones WAV file header writer
/// </summary>        
static void WriteWavHeader(Stream stream, int dataLength)
{
    //We need to use a memory stream because the BinaryWriter will close the underlying stream when it is closed
    using (var memStream = new MemoryStream(64))
    {
        int cbFormat = 18; //sizeof(WAVEFORMATEX)
        WAVEFORMATEX format = new WAVEFORMATEX()
        {
            wFormatTag = 1,
            nChannels = 1,
            nSamplesPerSec = 16000,
            nAvgBytesPerSec = 32000,
            nBlockAlign = 2,
            wBitsPerSample = 16,
            cbSize = 0
        };

        using (var bw = new BinaryWriter(memStream))
        {
            //RIFF header
            WriteString(memStream, "RIFF");
            bw.Write(dataLength + cbFormat + 4); //File size - 8
            WriteString(memStream, "WAVE");
            WriteString(memStream, "fmt ");
            bw.Write(cbFormat);

            //WAVEFORMATEX
            bw.Write(format.wFormatTag);
            bw.Write(format.nChannels);
            bw.Write(format.nSamplesPerSec);
            bw.Write(format.nAvgBytesPerSec);
            bw.Write(format.nBlockAlign);
            bw.Write(format.wBitsPerSample);
            bw.Write(format.cbSize);

            //data header
            WriteString(memStream, "data");
            bw.Write(dataLength);
            memStream.WriteTo(stream);
        }
    }
}

WriteString也负责将其转换为ASCII。我正在引用上面演示文稿中引用的.zip文件（“下载Quickstart slides and samples”，KinectforWindowsSDKV1 \ 6.Audio \ AudioRecorder \ AudioRecorder \ MainWindow.xaml.cs）

通过WAVEFORMATEX从Kinect录制音频

1 个答案: