如何用NAudio錄製來自Kinect的音頻

我想從Kinect錄製音頻。我正在使用NAudio庫。如何用NAudio錄製來自Kinect的音頻

我發現這個代碼：

private void button2_Click(object sender, EventArgs e) //Play Button 
{ 
    fileName = "lastReplay.wav";    

    FileStream FS_Write = File.OpenWrite("lastReplay.wav"); 
    FS_Write.Close(); 

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

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

    NAudio.Wave.WaveInProvider waveIn = new 
     NAudio.Wave.WaveInProvider(sourceStream); 

    sourceStream.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs> 
     (sourceStream_DataAvailable); 
    waveWriter = new NAudio.Wave.WaveFileWriter(fileName, sourceStream.WaveFormat); 
    sourceStream.StartRecording(); 
} 


private void sourceStream_DataAvailable(object sender, NAudio.Wave.WaveInEventArgs e) 
{ 
    if (waveWriter == null) return; 
    waveWriter.Write(e.Buffer, 0, e.BytesRecorded); 
    waveWriter.Flush(); 
}

當我開始Kinect的音頻通道需要啓動，所以我用這個：

Stream audioStream = this.sensor.AudioSource.Start();

我怎樣才能改變button2_click方法接受語音串流？

來源

2014-03-05 bircastri

因爲button2_click作爲一個事件，它必須有你提供的方法簽名。所以除了重寫按鈕類實現click事件的自定義事件 –

好了，但我可以使用audioStream和全局變量，所以我不能使用額外的參數來傳遞這個事件，所以我可以使用它 – bircastri

我已經解決了我的問題，代碼是這樣的：

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); 
        bw.Write(dataLength); 
        memStream.WriteTo(stream); 
       } 
      } 
     }

但是用這種方法，我應該音頻文件的時候才知道。我把dataLength參數。如果我使用這個代碼它發現，但現在我想使用這種方法從來沒有dataLength參數，因爲我不知道之前的文件音頻的持續時間，我該如何修改它？

來源

2014-03-06 09:38:24 bircastri

如何用NAudio錄製來自Kinect的音頻

回答

相關問題