void UpdateDisplay()
{
// Show the detector results
if (detector.Pitch > 1.0f)
{
if (detector.Pitch >= 1000.0f)
{
detectorPitch.text = (detector.Pitch / 1000.0f).ToString("F4");
detectorUnits.text = "kHz";
}
else
{
detectorPitch.text = detector.Pitch.ToString("F3");
detectorUnits.text = "Hz";
}
detectorMidiNote.text = PitchDsp.GetNoteName(detector.MidiNote, true, true);
detectorMidiCents.text = detector.MidiCents.ToString();
//var diffPercent = 100.0 - (100.0f * this.GeneratorPitch / curPitchRecord.Pitch);
//if (diffPercent >= 0.0f)
// detectorError.text = "+" + diffPercent.ToString("F3");
//else
//detectorError.text = diffPercent.ToString("F3");
}
else
{
detectorPitch.text = "--";
detectorUnits.text = "Hz";
detectorError.text = "--";
detectorMidiNote.text = "--";
detectorMidiCents.text = "--";
}
}
//Before i looked in to using MIDI , i had attempted to create methods that as it turns out, worked the same way.
//private void Note_start()
//{
// var curPitchRecord = m_pitchTracker.CurrentPitchRecord;
// float freq = curPitchRecord.Pitch;
// StartDuration = this.TimeInterval;
// CurrentFrequency = ((int)freq);
//}
//private void Note_End()
//{
// EndDuration = this.TimeInterval;
// if (Recording)
// {
// RecordString = TheRecorder.AddNextNote(CurrentFrequency, (int)(EndDuration - StartDuration));
// }
//}
private void UpdateDisplay()
{
// Show the detector results
var curPitchRecord = m_pitchTracker.CurrentPitchRecord; // places the current pitch in to the curpitchrecord variable
var curNote = PitchDsp.GetNoteName(curPitchRecord.MidiNote, true, true);
if (curPitchRecord.Pitch > 1.0f) // if a significant value is given
{
if (curPitchRecord.Pitch >= 1000.0f) // for the purpose of converting the units from khz to hz
{
pFrequencyValueLbl.Text = (curPitchRecord.Pitch / 1000.0f).ToString("F4"); // converts given value in to khz
pFrequencyUnitsLbl.Text = "kHz"; // sho9ws that value is in khz
}
else //if pitch !>= 1000, then it is in hz
{
pFrequencyValueLbl.Text = curPitchRecord.Pitch.ToString("F3"); //no need to convert to khz
pFrequencyUnitsLbl.Text = "Hz"; // shows that value is in hz
}
noteValueLbl.Text = curNote;
noteList.Add(curNote);
nListView.SubItems.Add(curNote);
}
}
/// <summary>
/// Setup
/// </summary>
private void Setup()
{
if (m_sampleRate < 1.0f)
return;
m_dsp = new PitchDsp(m_sampleRate, kMinFreq, kMaxFreq, m_detectLevelThreshold);
m_iirFilterLoLo = new IIRFilter();
m_iirFilterLoLo.Proto = IIRFilter.ProtoType.Butterworth;
m_iirFilterLoLo.Type = IIRFilter.FilterType.HP;
m_iirFilterLoLo.Order = 5;
m_iirFilterLoLo.FreqLow = 45.0f;
m_iirFilterLoLo.SampleRate = (float)m_sampleRate;
m_iirFilterLoHi = new IIRFilter();
m_iirFilterLoHi.Proto = IIRFilter.ProtoType.Butterworth;
m_iirFilterLoHi.Type = IIRFilter.FilterType.LP;
m_iirFilterLoHi.Order = 5;
m_iirFilterLoHi.FreqHigh = 280.0f;
m_iirFilterLoHi.SampleRate = (float)m_sampleRate;
m_iirFilterHiLo = new IIRFilter();
m_iirFilterHiLo.Proto = IIRFilter.ProtoType.Butterworth;
m_iirFilterHiLo.Type = IIRFilter.FilterType.HP;
m_iirFilterHiLo.Order = 5;
m_iirFilterHiLo.FreqLow = 45.0f;
m_iirFilterHiLo.SampleRate = (float)m_sampleRate;
m_iirFilterHiHi = new IIRFilter();
m_iirFilterHiHi.Proto = IIRFilter.ProtoType.Butterworth;
m_iirFilterHiHi.Type = IIRFilter.FilterType.LP;
m_iirFilterHiHi.Order = 5;
m_iirFilterHiHi.FreqHigh = 1500.0f;
m_iirFilterHiHi.SampleRate = (float)m_sampleRate;
m_detectOverlapSamples = (int)(kDetectOverlapSec * m_sampleRate);
m_maxOverlapDiff = kMaxOctaveSecRate * kDetectOverlapSec;
m_pitchBufSize = (int)(((1.0f / (float)kMinFreq) * 2.0f + ((kAvgCount - 1) * kAvgOffset)) * m_sampleRate) + 16;
m_pitchBufLo = new float[m_pitchBufSize + m_detectOverlapSamples];
m_pitchBufHi = new float[m_pitchBufSize + m_detectOverlapSamples];
m_samplesPerPitchBlock = (int)Math.Round(m_sampleRate / m_pitchRecordsPerSecond);
m_circularBufferLo = new CircularBuffer<float>((int)(kCircularBufSaveTime * m_sampleRate + 0.5f) + 10000);
m_circularBufferHi = new CircularBuffer<float>((int)(kCircularBufSaveTime * m_sampleRate + 0.5f) + 10000);
}
public static string NoteToName(int note)
{
return(PitchDsp.GetNoteName(note, true, true));
}
