public static void StartSession(DataDisplayModes mode)
{
consoleSB = new StringBuilder();
//Console.SetOut(File.AppendText($"{workingDirectory}{SessionId}.log"));
Console.WriteLine($"Session '{SessionId}' starts at {DateTime.Now.ToString("yyyy-MM-dd HH\\:mm\\:sszzz")} ({DateTime.UtcNow.ToString("yyyy-MM-dd HH\\:mm\\:ss")} UTC)");
try
{
Console.Write($"Checking if Mercury-16 is connected as PHDC USB device... ");
BBDMercury16Input bbdMercury16Input = new BBDMercury16Input();
waveSourceDevice = bbdMercury16Input;
waveSource = bbdMercury16Input;
Console.WriteLine("OK");
}
catch (System.IO.IOException)
{
Console.WriteLine("not connected");
}
if (waveSource == null)
{
try
{
Console.Write($"Checking if Arduino is connected on port '{arduinoPort}', expecting The 8x8 Matrix as data-source... ");
waveSource = new BBD8x8MatrixInput(arduinoPort, 64);
Console.WriteLine("OK");
}
catch (System.IO.IOException)
{
Console.WriteLine("not connected");
}
}
if (waveSource == null)
{
Console.Write($"No hardware source was detected, so creating an 8kHz 16ch sine signal generator as data-source... ");
waveSource = new SineInput(8000, 16);
Console.WriteLine("OK");
}
int fftSize = 1024 * 16;
frequencyStep = (float)waveSource.SamplesPerSecond / fftSize;
MultiChannelInput <IDataChannel> normalizedSource = FilterManager.ApplyFilters(waveSource, new NormalizeFilter()
{
Settings = new NormalizeFilterSettings()
{
Enabled = true, SampleCount = waveSource.SamplesPerSecond * 3, Gain = 10.0f
}
});
//MultiChannelInput<IDataChannel> filteredSource = FilterManager.ApplyFilters(waveSource, new ByPassFilter() { Settings = new ByPassFilterSettings() { Enabled = true } });
//MultiChannelInput<IDataChannel> filteredSource = FilterManager.ApplyFilters(waveSource, new FillFilter() { Settings = new FillFilterSettings() { Enabled = true, ValueToFillWith = 0.75f } });
//MultiChannelInput<IDataChannel> averagedSource = FilterManager.ApplyFilters(normalizedSource, new MovingAverageFilter() { Settings = new MovingAverageFilterSettings() { Enabled = true, InputDataDimensions = 2, MovingAverageLength = 10 } });
wfo = new WaveFileOutput(normalizedSource, $"{workingDirectory}{SessionId}.wav");
wfo.DataWritten += Wfo_DataWritten;
//vtkfo = new VTKFileOutput(filteredSource, $"{workingDirectory}{SessionId}.vts");
//vtkfo.DataWritten += Wfo_DataWritten;
//vtsfo = new SimpleVTSFileOutput(filteredSource, $"{workingDirectory}{SessionId}.vts", true);
//vtsfo.DataWritten += Vtsfo_DataWritten;
MultiChannelInput <IDataChannel> filteredSource = null;
switch (mode)
{
case DataDisplayModes.NormalizedWaveform:
peakToPeakValues = null;
vo = new VisualOutput(normalizedSource, 25, VisualOutputMode.Waveform);
break;
case DataDisplayModes.FilteredSpectogram:
filteredSource = FilterManager.ApplyFilters(normalizedSource, new FFTWFilter()
{
Settings = new FFTWFilterSettings()
{
Enabled = true, FFTSampleCount = fftSize, IsBackward = false, PlanningRigor = FFTPlanningRigor.Estimate, IsRealTime = true, Timeout = 300, OutputFormat = FFTOutputFormat.Magnitude, BufferSize = fftSize * 16
}
});
vo = new VisualOutput(filteredSource, 25, VisualOutputMode.Spectrum);
break;
case DataDisplayModes.DominanceMatrix:
filteredSource = FilterManager.ApplyFilters(normalizedSource, new FFTWFilter()
{
Settings = new FFTWFilterSettings()
{
Enabled = true, FFTSampleCount = fftSize, IsBackward = false, PlanningRigor = FFTPlanningRigor.Estimate, IsRealTime = true, Timeout = 300, OutputFormat = FFTOutputFormat.FrequencyMagnitudePair
}
});
MultiChannelInput <IDataChannel> thresholdedSource = FilterManager.ApplyFilters(filteredSource, new ThresholdFilter()
{
Settings = new ThresholdFilterSettings()
{
Enabled = true, MinValue = 0.002f, MaxValue = Single.MaxValue
}
});
vo = new VisualOutput(thresholdedSource, 25, VisualOutputMode.DominanceMatrix);
break;
case DataDisplayModes.GoertzelValues:
vo = new VisualOutput(waveSource, 25, VisualOutputMode.GoertzelTable);
break;
}
if (vo != null)
{
vo.RefreshVisualOutput += Vo_RefreshVisualOutput;
}
firstActivity = DateTime.UtcNow;
Console.OutputEncoding = System.Text.Encoding.Unicode;
Console.SetBufferSize(200, 500);
Console.SetWindowSize(200, 63);
consoleRefreshAtY = Console.CursorTop;
}