/// <summary>
/// Called when audio samples buffer is filled. Starts main calculation chain.
/// </summary>
/// <param name="o"></param>
/// <param name="e"></param>
private void OnBufferFilled(object o, BufferFilledEventArgs e)
{
//if (e.Volume < -50f) return;
autocorrelator.CalculateAutocorrelation();
int maxLag = autocorrelator.MaxValueLag;
if (maxLag == autocorrelator.MinLag)
{
return;
}
float interpolatedVal = interpolator.Interpolate(maxLag, autocorrelator.Output);
float frequency = sampleRate / interpolatedVal;
frequencyBuffer.AddFrequency(frequency);
}
/// <summary>
/// Raised when buffer is filled. Also volume in dB is calculated and passed in EventArgs.
/// </summary>
protected virtual void OnBufferFilled()
{
float vol = 20 * (float)Math.Log10(currentMax);
if (float.IsInfinity(vol) || float.IsNaN(vol))
{
vol = -90;
}
BufferFilledEventArgs e = new BufferFilledEventArgs
{
Volume = vol
};
position = 0;
currentMax = 0;
BufferFilled?.Invoke(this, e);
}
private void OnBufferFilled(object o, BufferFilledEventArgs e)
{
view.ChangeVolumeLevel(e.Volume + 90);
}