c#NAudio 錄音功能實現

在網上找了很多類似錄音教程效果都不好，或根本不能錄音，代碼由網上借鑒修改（完整實現錄音播放功能）

1.首先新建引用類  RecordController

public class RecordController
{
public WaveIn mWavIn;
public WaveFileWriter mWavWriter;

/// <summary>
/// 開始錄音
/// </summary>
/// <param name="filePath"></param>
public void StartRecord(string filePath)
{
mWavIn = new WaveIn();
mWavIn.DataAvailable += MWavIn_DataAvailable;
// mWavIn.RecordingStopped += MWavIn_RecordingStopped; 有沖突
mWavWriter = new WaveFileWriter(filePath, mWavIn.WaveFormat);
mWavIn.StartRecording();
}

/// <summary>
/// 停止錄音
/// </summary>
public void StopRecord()
{
mWavIn?.StopRecording();
mWavIn?.Dispose();
mWavIn = null;
mWavWriter?.Close();
mWavWriter = null;
}

//這個方法在調用關閉時會有沖突

private void MWavIn_RecordingStopped(object sender, StoppedEventArgs e)
{
//mWavIn?.Dispose();
//mWavIn = null;
//mWavWriter?.Close();
//mWavWriter = null;
}

private void MWavIn_DataAvailable(object sender, WaveInEventArgs e)
{
mWavWriter.Write(e.Buffer, 0, e.BytesRecorded);
int secondsRecorded = (int)mWavWriter.Length / mWavWriter.WaveFormat.AverageBytesPerSecond;
}
}

 

2.在主界面引用  RecordController record = new RecordController();

/// <summary>
/// 耳機sidetone測試
/// </summary>
/// <param name="i"></param>
public void Sidetone(int i)
{
string[] row = getlistviewitem(i);
record.StartRecord("e:\\rec.wav");
if (MessageBox.Show("正在錄音，點擊是播放錄音", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.No)
{
record.StopRecord();
ErrorFlag = false;
row[6] = "FAIL";
}
else
{
record.StopRecord();
string path = "e:\\rec.wav";//.wav音頻文件路徑
System.Media.SoundPlayer player = new System.Media.SoundPlayer(path);
player.Play();

if (MessageBox.Show("是否有錄音", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.No)
{
ErrorFlag = false;
row[6] = "FAIL";
}
else
{
ErrorFlag = true;
row[5] = "OK";
row[6] = "PASS";
}
}
listupdate(row, i);
}

完成代碼后測試是能正常錄音