■ WaveInEvent 클래스를 사용해 WAV 파일을 레코딩하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.IO; using System.Windows.Forms; using NAudio.Wave; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 타겟 디렉토리 경로 /// </summary> private string targetDirectoryPath; /// <summary> /// 타겟 파일 경로 /// </summary> private string targerFilePath; /// <summary> /// 웨이브 입력 이벤트 /// </summary> private WaveInEvent waveInEvent; /// <summary> /// 웨이브 파일 작성자 /// </summary> private WaveFileWriter waveFileWriter = null; /// <summary> /// 종료 여부 /// </summary> private bool closing = false; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.targetDirectoryPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "NAudio"); if(!Directory.Exists(this.targetDirectoryPath)) { Directory.CreateDirectory(this.targetDirectoryPath); } this.targerFilePath = Path.Combine(this.targetDirectoryPath, "result.wav"); this.waveInEvent = new WaveInEvent(); FormClosing += Form_FormClosing; this.recordButton.Click += recordButton_Click; this.stopButton.Click += stopButton_Click; this.waveInEvent.DataAvailable += waveInEvent_DataAvailable; this.waveInEvent.RecordingStopped += waveInEvent_RecordingStopped; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼을 닫을 경우 처리하기 - Form_FormClosing(sender, e) /// <summary> /// 폼을 닫을 경우 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_FormClosing(object sender, FormClosingEventArgs e) { this.closing = true; this.waveInEvent.StopRecording(); } #endregion #region 레코딩 버튼 클릭시 처리하기 - recordButton_Click(sender, e) /// <summary> /// 레코딩 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void recordButton_Click(object sender, EventArgs e) { this.waveFileWriter = new WaveFileWriter(this.targerFilePath, this.waveInEvent.WaveFormat); this.waveInEvent.StartRecording(); this.recordButton.Enabled = false; this.stopButton.Enabled = true; } #endregion #region 중단 버튼 클릭시 처리하기 - stopButton_Click(sender, e) /// <summary> /// 중단 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void stopButton_Click(object sender, EventArgs e) { this.waveInEvent.StopRecording(); } #endregion #region 웨이브 입력 이벤트 데이터 이용 가능시 처리하기 - waveInEvent_DataAvailable(sender, e) /// <summary> /// 웨이브 입력 이벤트 데이터 이용 가능시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void waveInEvent_DataAvailable(object sender, WaveInEventArgs e) { this.waveFileWriter.Write(e.Buffer, 0, e.BytesRecorded); if(this.waveFileWriter.Position > this.waveInEvent.WaveFormat.AverageBytesPerSecond * 30) { this.waveInEvent.StopRecording(); } } #endregion #region 웨이브 입력 이벤트 레코딩 중단시 처리하기 - waveInEvent_RecordingStopped(sender, e) /// <summary> /// 웨이브 입력 이벤트 레코딩 중단시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void waveInEvent_RecordingStopped(object sender, StoppedEventArgs e) { this.waveFileWriter?.Dispose(); this.waveFileWriter = null; this.recordButton.Enabled = true; this.stopButton.Enabled = false; if(this.closing) { this.waveInEvent.Dispose(); } } #endregion } } |
