private void StartRecording()
{
if (recording)
return;
Guid guid = ((DeviceItem)deviceCombo.SelectedItem).DeviceInformation.DriverGuid;
const int Fs = 44100;
powerMeter = new PowerMeter(Util.CalcBufferSize(0.1f, Fs));
powerMeter.PowerUpdated += new PowerMeter.PowerUpdatedHandler(powerMeter_PowerUpdated);
waveCap = new WaveCapture(guid, Fs, 32 * 1024, 50);
frontEnd = new FrontEnd(Fs, 1022.76);
UnitOffset<float> offset = new UnitOffset<float>();
BitCombiner combiner1 = new BitCombiner();
BitCombiner combiner2 = new BitCombiner();
decider1 = new Decider(1);
decider2 = new Decider(2);
FirstOneWins<bool> firstOneWins = new FirstOneWins<bool>();
ConvertToBytes convertToBytes = new ConvertToBytes();
Progress progress = new Progress();
// set up capture outputs
waveCap.Output.Connect(frontEnd.Input);
waveCap.Output.Connect(powerMeter.Input);
// set up front-end outputs
InputPin<float> phasePin = new InputPin<float>();
frontEnd.PhaseOutput.Connect(phasePin);
phasePin.BufferFilled += new InputPin<float>.BufferFilledHandler(PhaseOutputBuffer_BufferFilled);
frontEnd.EyeOutput.Connect(eyePlot1.Input);
frontEnd.Output.Connect(combiner1.Input);
frontEnd.Output.Connect(offset.Input);
offset.Output.Connect(combiner2.Input);
// Set up combiner outputs
combiner1.Output.Connect(decider1.Input);
combiner2.Output.Connect(decider2.Input);
// Set up decider outputs
decider1.Output.Connect(firstOneWins.Input1);
decider2.Output.Connect(firstOneWins.Input2);
firstOneWins.Output.Connect(convertToBytes.Input);
convertToBytes.Output.Connect(progress.Input);
// TODO: Look into reset signal crap...
phasePlot2.Clear();
phasePlot2.Reset();
eyePlot1.Clear();
waveCap.Start();
deviceCombo.Enabled = false;
recording = true;
}
public Receiver(ReceiverSettings settings)
{
if (settings == null)
throw new ArgumentNullException("settings");
if (settings.SamplingFrequency <= 0.0f)
throw new ArgumentOutOfRangeException("settings", "Settings request an invalid sampling frequency. Sampling frequency must be positive.");
if (settings.CarrierFrequency <= 0.0f)
throw new ArgumentOutOfRangeException("settings", "Settings request an invalid carrier frequency. Carrier frequency must be positive.");
this.settings = settings;
this.frontEnd = new FrontEnd(settings.SamplingFrequency, settings.CarrierFrequency);
}