無效的wav文件沒有使用naudio錄製後發現的fmt塊

我的動機是使用NAudio錄製音頻，保存爲wav文件，然後混合多個音頻並播放。爲此，我試圖無效的wav文件沒有使用naudio錄製後發現的fmt塊

private void buttonRecord_Click(object sender, EventArgs e) 
    { 
     //if (sourceList.SelectedItems.Count == 0) return; 

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

     sourceStream = new NAudio.Wave.WaveIn(); 
     sourceStream.DeviceNumber = 0; 
     sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(0).Channels); 

     sourceStream1 = new NAudio.Wave.WaveIn(); 
     sourceStream1.DeviceNumber = 1; 
     sourceStream1.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(1).Channels); 

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



     //sourceStream.StartRecording(); 
     //waveOut.Play(); 


     sourceStream1.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(waveIn_DataAvailable1); 
     writer1 = new NAudio.Wave.WaveFileWriter("D:\test.wav", sourceStream1.WaveFormat); 
     sourceStream1.StartRecording(); 

     sourceStream.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(waveIn_DataAvailable); 
     writer = new NAudio.Wave.WaveFileWriter("D:\test1.wav", sourceStream.WaveFormat); 
     sourceStream.StartRecording(); 
    } 
    void waveIn_DataAvailable(object sender, NAudio.Wave.WaveInEventArgs e) 
    { 
     writer.WriteData(e.Buffer, 0, e.BytesRecorded); 
    } 
    void waveIn_DataAvailable1(object sender, NAudio.Wave.WaveInEventArgs e) 
    { 
     writer1.WriteData(e.Buffer, 0, e.BytesRecorded); 
    } 
    private void buttonStopRecording_Click(object sender, EventArgs e) 
    { 

     if (sourceStream != null) 
     { 
      sourceStream.StopRecording(); 
      sourceStream.Dispose(); 
      sourceStream = null; 
     } 
     if (sourceStream1 != null) 
     { 
      sourceStream1.StopRecording(); 
      sourceStream1.Dispose(); 
      sourceStream1 = null; 
     } 
    }

上面的代碼可以完美記錄，但記錄的音頻沒有在Windows媒體播放器中播放，但與VLC媒體播放器的工作原理。使用代碼下面我試着混合

void Mixingfunction() 
    { 
     MixingSampleProvider mixer = new MixingSampleProvider(NAudio.Wave.WaveFormat.CreateIeeeFloatWaveFormat(44100, 1)); 
     try 
     { 


      audioFileReader = new AudioFileReader(@"D:\test1.wav"); 
       mixer.AddMixerInput((ISampleProvider)audioFileReader); 
       audioFileReader = new AudioFileReader(@"D:\test.wav"); 
       mixer.AddMixerInput((ISampleProvider)audioFileReader); 
     } 
     catch (Exception e) 
     { 
      MessageBox.Show(e.Message); 
      return; 

     } 
     waveOut = new NAudio.Wave.DirectSoundOut(); 

     //if (flag == true) 
     //{ 
     // mixer.AddMixerInput((ISampleProvider)sineWaveProvider); 
     //} 
     //SampleToWaveProvider mixer2 = new SampleToWaveProvider((ISampleProvider)mixer); 
     waveOut.Init((IWaveProvider)mixer); 
     waveOut.Play(); 
    }

但它給例外no FMT Chunk found。現在我不知道要做什麼......

來源

2016-07-22 Hot Cool Stud

您需要在準備好要播放之前處置對象WaveFileWriter。這樣做會更新WAV文件頭中的塊大小。

來源

2016-07-22 10:00:22

終於標誌着我等待回答，從你身邊貼出了很多問題，標籤Naudio。現在音頻錄製成功，但是當我嘗試使用mixsampleprovider混合音頻時，它會發出異常「所有混音器輸入必須具有相同的WaveFormat」。爲什麼？。我試圖找到關於混合音頻的教程，但只能從你使用mixsampleprovider的一個stackoverflow答案中找到線索。 –

謝謝馬克，因爲你的naudio我的所有任務都解決了.... –

無效的wav文件沒有使用naudio錄製後發現的fmt塊

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