private void btnStart_Click(object sender, EventArgs e)
{
if (deviceslist.SelectedItems.Count <= 0)
return;
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "WAV (*.wav)|*.wav";
sfd.Title = "Speichern";
sfd.FileName = String.Empty;
if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
_waveIn = new WaveInEvent(new WaveFormat(44100, 16, _selectedDevice.Channels));
_waveIn.Device = deviceslist.SelectedItems[0].Index;
_waveIn.Initialize();
_waveIn.Start();
var waveInToSource = new SoundInSource(_waveIn);
_source = waveInToSource;
var notifyStream = new SingleBlockNotificationStream(_source);
notifyStream.SingleBlockRead += OnNotifyStream_SingleBlockRead;
_source = notifyStream.ToWaveSource(16);
_writerBuffer = new byte[_source.WaveFormat.BytesPerSecond];
_writer = new WaveWriter(File.OpenWrite(sfd.FileName), _source.WaveFormat);
waveInToSource.DataAvailable += OnNewData;
btnStart.Enabled = false;
btnStop.Enabled = true;
}
}
/// <summary>
/// Record sound made in Mic and save it to a wave file
/// </summary>
/// <param name="wavefile">name of the wave file with extension</param>
public void CaptureMicToWave(string wavefile)
{
int i = 0;
string extension = ".wav";
foreach (var device in WaveIn.Devices)
{
_waveIn = new WaveInEvent(new WaveFormat(44100, 16, device.Channels));
_waveIn.Device = i++;
_waveIn.Initialize();
_waveIn.Start();
var waveInToSource = new SoundInSource(_waveIn);
_source = waveInToSource;
var notifyStream = new SingleBlockNotificationStream(_source);
_source = notifyStream.ToWaveSource(16);
_writerBuffer = new byte[_source.WaveFormat.BytesPerSecond];
wavefile = string.Format("{0}{1}{2}", wavefile.Remove(wavefile.LastIndexOf(extension) - (i > 1 ? 1 : 0)), i, extension);
_writer = new WaveWriter(wavefile, _source.WaveFormat);
waveInToSource.DataAvailable += (s, e) =>
{
int read = 0;
while ((read = _source.Read(_writerBuffer, 0, _writerBuffer.Length)) > 0)
{
_writer.Write(_writerBuffer, 0, read);
}
};
}
}
public void CanCreateWaveInDevice()
{
using (WaveIn waveIn = new WaveIn())
{
waveIn.Initialize();
waveIn.Start();
}
}
public WaveInBuffer(WaveIn waveIn, int bufferSize)
{
if (waveIn == null) throw new ArgumentNullException("waveOut");
if (bufferSize <= 0) throw new ArgumentOutOfRangeException("bufferSize");
if (waveIn.Handle == IntPtr.Zero)
throw new InvalidOperationException("Invalid WaveIn-Handle");
_waveInHandle = waveIn.Handle;
_bufferSize = bufferSize;
}
public void CanCreateWaveInDevice()
{
#pragma warning disable 612
using (WaveIn waveIn = new WaveIn())
#pragma warning restore 612
{
waveIn.Initialize();
waveIn.Start();
}
}
private void btnStop_Click(object sender, EventArgs e)
{
if (_soundOut != null)
_soundOut.Dispose();
_waveIn.Dispose();
if(_writer is IDisposable)
((IDisposable)_writer).Dispose();
_waveIn = null;
_writer = null;
_soundOut = null;
btnStart.Enabled = deviceslist.SelectedItems.Count > 0;
btnStop.Enabled = false;
}
/// <summary>
/// Stop recording of the Mic started by CaptureMicToWave
/// </summary>
public void UnCaptureMicToWave()
{
_waveIn.Stop();
_source.Dispose();
_waveIn.Dispose();
if (_writer is IDisposable)
((IDisposable)_writer).Dispose();
_waveIn = null;
_source = null;
_writer = null;
}
