private void DisposeWave()
{
if (output != null)
{
if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing)
{
output.Stop();
output.Dispose();
output = null;
}
}
}
public void Acquire(int input_device, Signal_Type ST, int output_device)
{
Running = true;
Channels_in = NAudio.Wave.WaveIn.GetCapabilities(input_device).Channels;
Response = new List <short> [Channels_in];
block = 2 * Channels_in;
WI = new NAudio.Wave.WaveInEvent();
WI.WaveFormat = new NAudio.Wave.WaveFormat(SampleFreq, 16, Channels_in);
WI.DeviceNumber = input_device;
WI.BufferMilliseconds = 100;
WI.NumberOfBuffers = 3;
WI.RecordingStopped += WI_RecordingStopped;
WI.DataAvailable += WI_DataAvailable;
WO.DeviceNumber = output_device;
for (int c = 0; c < Channels_in; c++)
{
Response[c] = new List <short>();
}
SignalProvider Signal;
switch (ST)
{
case Signal_Type.Pink_Noise:
Signal = new Noise_Provider(1, (int)CT_Averages, SampleFreq);
break;
case Signal_Type.MLS:
throw new NotImplementedException();
case Signal_Type.Swept_Sine:
Signal = new Sweep_Provider((float)Signal_Length, CT_Averages, 63, 20000, SampleFreq);
break;
case Signal_Type.Logarithmic_Swept_Sine:
throw new NotImplementedException();
default:
System.Windows.Forms.MessageBox.Show("Select a Signal...");
return;
}
TD_Signal = Signal.Signal;
WO.NumberOfBuffers = 1;
WO.DesiredLatency = 3000 * CT_Averages;
WO.Volume = 1.0f;
WO.Init(Signal);
WI.StartRecording();
WO.Play();
System.Threading.Thread.Sleep((int)(Signal_Time_s * (3 + CT_Averages) * 1000));
WO.Stop();
WI.StopRecording();
System.Threading.Thread.Sleep(100);
WI_RecordingStopped(this, null);
}
public void DoPlay()
{
try
{
Console.WriteLine();
Console.WriteLine("playing track. press space to play/pause; ESC to stop");
System.Threading.Thread.Sleep(1000);
NAudio.Wave.WaveOutEvent wavout = new NAudio.Wave.WaveOutEvent();
NAudio.Wave.WaveFileReader wavreader = new NAudio.Wave.WaveFileReader(_beatFile.GetWavFilename());
wavout.Init(wavreader);
wavout.Play();
int index = 0;
List <BeatInstance> bl = _beatFile.GetAllBeats();
while (wavout.PlaybackState != NAudio.Wave.PlaybackState.Stopped)
{
if (System.Console.KeyAvailable)
{
switch (System.Console.ReadKey(true).Key)
{
case ConsoleKey.Spacebar:
if (wavout.PlaybackState == NAudio.Wave.PlaybackState.Paused)
{
wavout.Play();
}
else if (wavout.PlaybackState == NAudio.Wave.PlaybackState.Playing)
{
wavout.Pause();
}
break;
case ConsoleKey.Escape:
Console.WriteLine("stopped playback");
wavout.Stop();
break;
case ConsoleKey.OemPeriod:
Console.WriteLine("{0}", wavreader.CurrentTime.TotalSeconds);
break;
}
}
while (index < bl.Count && bl[index].TriggerTime <= wavreader.CurrentTime.TotalSeconds)
{
if (!_playQuiet)
{
ViewOneBeat(bl[index]);
}
index++;
}
System.Threading.Thread.Sleep(10);
}
wavout.Dispose();
wavreader.Dispose();
}
catch (Exception ex)
{
throw new Exception("error playing track", ex);
}
}