public void NextSample(double newValue)
{
delay.Filter(newValue);
// Create Analytic signal and calculate absolute value "levelMagnitude"
double levelReal = delay.GetNthDelayedSampleValue(3);
// Discrete Hilbert transform
double levelImaginary =
(delay.GetNthDelayedSampleValue(2) - delay.GetNthDelayedSampleValue(4)) * 2.0 / 1.0 / Math.PI +
(delay.GetNthDelayedSampleValue(0) - delay.GetNthDelayedSampleValue(6)) * 2.0 / 3.0 / Math.PI;
double levelMagnitude = Math.Sqrt(levelReal * levelReal + levelImaginary * levelImaginary);
double db = Double.NegativeInfinity;
if (Double.Epsilon < levelMagnitude)
{
db = 20.0 * Math.Log10(levelMagnitude);
}
if (PeakDb < db)
{
PeakDb = db;
}
}
public override WWUtil.LargeArray <double> FilterDo(WWUtil.LargeArray <double> inPcmLA)
{
var inPcm = inPcmLA.ToArray();
double [] outPcm = new double[inPcm.Length];
for (long i = 0; i < outPcm.Length; ++i)
{
mDelay.Filter(inPcm[i]);
outPcm[i] = Convolution();
}
return(new WWUtil.LargeArray <double>(outPcm));
}
public override WWUtil.LargeArray <double> FilterDo(WWUtil.LargeArray <double> inPcmLA)
{
var inPcm = inPcmLA.ToArray();
var outPcm = new double[inPcm.Length];
for (int i = 0; i < inPcm.Length; ++i)
{
double x = inPcm[i];
double delayedY = mDelayX.Filter(x);
for (int j = 0; j < MOVING_AVERAGER_NUM; ++j)
{
x = mMovingAveragerList[j].Filter(x);
}
double y = delayedY - x;
outPcm[i] = y;
}
if (0 < mDiscardSamples)
{
if (outPcm.Length < mDiscardSamples)
{
mDiscardSamples -= outPcm.Length;
return(new WWUtil.LargeArray <double>(0));
}
else
{
var outPcm2 = new double[outPcm.Length - mDiscardSamples];
Array.Copy(outPcm, mDiscardSamples, outPcm2, 0, outPcm2.Length);
mDiscardSamples = 0;
return(new WWUtil.LargeArray <double>(outPcm2));
}
}
return(new WWUtil.LargeArray <double>(outPcm));
}
public void UpdateEnd()
{
if (delayPeakHoldDb == null)
{
// ピークホールドがずっと持続
if (PeakHoldDb < PeakDb)
{
PeakHoldDb = PeakDb;
}
return;
}
delayPeakHoldDb.Filter(PeakDb);
PeakHoldDb = Double.NegativeInfinity;
for (int i = 0; i < delayPeakHoldDb.DelaySamples; ++i)
{
if (PeakHoldDb < delayPeakHoldDb.GetNthDelayedSampleValue(i))
{
PeakHoldDb = delayPeakHoldDb.GetNthDelayedSampleValue(i);
}
}
}