protected LinkedList<double> extract_freq(ILNumerics.ILRetArray<ILNumerics.complex> o)
{
if (o.Length > 0)
{
double x = average(o);
LinkedList<double> res = new LinkedList<double>();
foreach (ILNumerics.complex a in o)
{
double n = Math.Round(Math.Sqrt(a.real * a.real + a.imag * a.imag) * 128 / o.Length, 2);
if (!double.IsInfinity(n))
res.AddLast(Math.Round(Math.Sqrt(a.real * a.real + a.imag * a.imag) * 128 / o.Length, 2));
else
res.AddLast(0);
}
return res;
}
return null;
}
protected double average(ILNumerics.ILRetArray<ILNumerics.complex> o)
{
double sum=0, count = 0;
foreach (ILNumerics.complex a in o)
{
count++;
sum += a.real;
}
return sum/count;
}
