NAudio Record buffer full after 5 seconds of recording

问题

I'm making a program using Visual C# Studio that records from a microphone.

I wish to record for a few minutes, but when I try to record, it shows me an error with 'Buffer Full' after it records for 5 seconds.

This is the code I'm using:

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();
}

Does anyone knows what is the problem? Thanks.

回答1:

There's a bunch of code in there you don't need. Get rid of creating the empty WAV file. Also, there is no need for the WaveInProvider. In fact, that is what is causing the buffer full exception, since nothing is reading from it.

来源：https://stackoverflow.com/questions/14538098/naudio-record-buffer-full-after-5-seconds-of-recording