[英]C# NAudio: Recorded file wont play
我正在尝试录制我的声音,并在停止录制后弹出一个保存文件对话框。 我可以将其保存到桌面上以进行播放。 不幸的是,Groove无法识别该文件(指出该文件无法播放),我很肯定这不是他们的错。
请原谅注释和代码转储。
public partial class RecordAndEditVoice : Window
{
WaveIn sourceStream = null;
WaveFileWriter waveWriter = null;
SaveFileDialog save = new SaveFileDialog();
private void sourceStream_DataAvailable(object sender, WaveInEventArgs e)
{
if (waveWriter == null) return;
//Adds bytes to the wave file, storing them in a buffer?
waveWriter.Write(e.Buffer, 0, e.BytesRecorded);
waveWriter.Flush();
}
private void recordButton_Click(object sender, RoutedEventArgs e)
{
MainWindow mw = new MainWindow();
int devNum = mw.DeviceButton();
if (recordButton.Content.ToString() == "RECORD")
{
recordButton.Content = "STOP";
//Start recording audio.
sourceStream = new WaveIn();
sourceStream.DeviceNumber = devNum;
//1. Set the sample rate. 2. Get number of channels supported on the device.
sourceStream.WaveFormat = new WaveFormat(44100, WaveIn.GetCapabilities(devNum).Channels);
sourceStream.StartRecording();
sourceStream.DataAvailable += new EventHandler<WaveInEventArgs>(sourceStream_DataAvailable);
}
else if(recordButton.Content.ToString() == "STOP")
{
sourceStream.StopRecording();
save.Filter = "Wave Files (*.wav)|*.wav;";
if (save.ShowDialog() != true) return;
waveWriter = new WaveFileWriter(save.FileName, sourceStream.WaveFormat);
recordButton.Content = "RECORD";
}
}
}
我尝试将waveWriter移到if语句中,但是它引发了类型为'System.ArgumentException'的异常。 在谷歌搜索时被引用的范围太广而无济于事。
在拥有可播放文件之前,必须在WaveFileWriter
上调用Dispose
。 这是因为WAV
文件格式在文件的开头包含一些长度信息,这些信息仅在您调用Dispose
时才填写
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