/// <summary>
/// Calculates the pitch average proccessed by PitchTracker and adjusts the pitch bar.
/// </summary>
/// <param name="onComplete"></param>
/// <param name="min"></param>
/// <param name="max"></param>
/// <param name="durationSlider"></param>
/// <returns></returns>
IEnumerator GetPitchAverage(Action <float> onComplete, float min, float max, Slider durationSlider)
{
float pitches = 0f;
int pitchCount = 0;
PitchTracker.PitchDetectedHandler PitchDetected = (sender, pitchRecord) =>
{
if (pitchRecord.Pitch < 20.0f) // pitches under 20Hz should not occur normally, as it is already not a MIDI note
{
return;
}
pitches += pitchRecord.Pitch;
pitchCount++;
};
m_PitchTracker.PitchDetected += PitchDetected;
float currentDuration = 0f;
while (currentDuration < m_CalibrationDuration)
{
durationSlider.value = Mathf.Lerp(0f, 1f, currentDuration / m_CalibrationDuration);
m_PitchTracker.ProcessBuffer(MicrophoneManager.Instance.GetSamples());
if (m_PitchTracker.CurrentPitchRecord.Pitch > 19f)
{
PitchVisualization.value = MathUtility.ConvertRange(min, max, 0f, 1f, pitches / pitchCount);
}
currentDuration += Time.deltaTime;
yield return(null);
}
m_PitchTracker.PitchDetected -= PitchDetected;
onComplete(pitches / pitchCount);
}
/// <summary>
/// In the calibration test window the user moves the pitch bar with his pitch into areas corresponding to the calibration. If the user can move the bar comfortably he can proceed
/// to finish the calibration.
/// </summary>
private void ShowCalibrationTestWindow()
{
StopCalibration();
CalibrationWindow.SetActive(false);
CalibrationTestWindow.SetActive(true);
ShowCalibrationButton.gameObject.SetActive(true);
ShowCalibrationTestButton.gameObject.SetActive(false);
MicrophoneManager.Instance.StartRecording();
// LowPitchArea and visualization start from the same point but area can only be max half the size so
// we have to multiply the area by factor 2 and add a small offset so the threshold for a successful calibration is smaller than the lowest pitch
LowPitchArea.value = (LowPitchVisualization.value * 2f) + 0.1f;
// HighPitchArea and visualization start from the opposite point but area can only be max half the size so
// we have to multiply the area by factor 2 and add a small offset so the threshold for a successful calibration is smaller than the higher pitch
HighPitchArea.value = (1f - HighPitchVisualization.value) * 2f + 0.1f;
PitchTracker.PitchDetectedHandler PitchDetected = (sender, pitchRecord) =>
{
if (pitchRecord.Pitch < 20.0f) // pitches under 20Hz should not occur normally, as it is already not a MIDI note
{
return;
}
PitchVisualization.value = MathUtility.ConvertRange(m_CalibratedLowPitch, m_CalibratedHighPitch, 0f, 1f, pitchRecord.Pitch);
};
m_PitchTracker.PitchDetected += PitchDetected;
m_GetPitchCoroutine = StartCoroutine(ListenForPitches());
}