public void FilterVersion094BiQuad()
{
var output = new float[_signal.Length];
var samples = _signal.Samples;
for (var i = 0; i < samples.Length; i++)
{
output[i] = _filterV4BiQuad.Process(samples[i]);
}
}
public void Run()
{
var output2 = new float[_signal.Length];
var output4 = new float[_signal.Length];
var output5 = new float[_signal.Length];
var outputZi = new float[_signal.Length];
var samples = _signal.Samples;
for (var i = 0; i < samples.Length; i++)
{
output4[i] = _filterV4BiQuad.Process(samples[i]);
output5[i] = _filterV5BiQuad.Process(samples[i]);
outputZi[i] = _filterZiBiQuad.Process(samples[i]);
}
var diffAverageV4 = output5.Zip(output4, (o5, o4) => Math.Abs(o5 - o4)).Average();
var diffAverageZi = output5.Zip(outputZi, (o5, zi) => Math.Abs(o5 - zi)).Average();
Console.WriteLine($"Average difference Ver.0.9.5 vs. Ver.0.9.4 : {diffAverageV4}");
Console.WriteLine($"Average difference IirFilter vs. ZiFilter : {diffAverageZi}");
for (var i = 0; i < samples.Length; i++)
{
output4[i] = _filterV4Butterworth6.Process(samples[i]);
output5[i] = _filterV5Butterworth6.Process(samples[i]);
outputZi[i] = _filterZiButterworth6.Process(samples[i]);
}
diffAverageV4 = output5.Zip(output4, (o5, o4) => Math.Abs(o5 - o4)).Average();
diffAverageZi = output5.Zip(outputZi, (o5, zi) => Math.Abs(o5 - zi)).Average();
Console.WriteLine($"Average difference Ver.0.9.5 vs. Ver.0.9.4 : {diffAverageV4}");
Console.WriteLine($"Average difference IirFilter vs. ZiFilter : {diffAverageZi}");
// === MISC ====
var med = new MedianFilter();
var med2 = new MedianFilter2();
var medOut = med.ApplyTo(_signal).Samples;
var medOut2 = med2.ApplyTo(_signal).Samples;
var diffAverageMed = medOut.Zip(medOut, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference MedianFilter vs. MedianFilter2 : {diffAverageMed}");
var ma = new MovingAverageFilter();
var maRec = new MovingAverageRecursiveFilter();
var maOut = ma.ApplyTo(_signal).Samples;
var maRecOut = maRec.ApplyTo(_signal).Samples;
var diffAverageMa = maOut.Zip(maRecOut, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference MovingAverageFilter vs. MovingAverageRecursiveFilter : {diffAverageMa}");
// 32bit vs. 64bit
var fir32 = new FirFilter(DesignFilter.FirWinLp(7, 0.1));
var fir64 = new FirFilter64(DesignFilter.FirWinLp(7, 0.1));
var fir32Out = fir32.ApplyTo(_signal).Samples;
var fir64Out = fir64.ApplyTo(_signal.Samples.ToDoubles());
var diffAverageFir = fir64Out.Zip(fir32Out, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference FirFilter vs. FirFilter64 : {diffAverageFir}");
var iir32 = new IirFilter(_filterV5Butterworth6.Tf);
var iir64 = new IirFilter64(_filterV5Butterworth6.Tf);
var iir32Out = iir32.ApplyTo(_signal).Samples;
var iir64Out = iir64.ApplyTo(_signal.Samples.ToDoubles());
var diffAverageIir = iir64Out.Zip(iir32Out, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference IirFilter vs. IirFilter64 : {diffAverageIir}");
var zi32 = new ZiFilter(_filterV5Butterworth6.Tf);
var zi64 = new ZiFilter64(_filterV5Butterworth6.Tf);
var zi32Out = zi32.ApplyTo(_signal).Samples;
var zi64Out = zi64.ApplyTo(_signal.Samples.ToDoubles());
var diffAverageZis = zi64Out.Zip(zi32Out, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference ZiFilter vs. ZiFilter64 : {diffAverageZis}");
zi32Out = zi32.ZeroPhase(_signal).Samples;
zi64Out = zi64.ZeroPhase(_signal.Samples.ToDoubles());
var diffAverageZiZeroPhase = zi64Out.Zip(zi32Out, (m1, m2) => Math.Abs(m1 - m2)).Average();
Console.WriteLine($"Average difference ZiFilter vs. ZiFilter64 (zero-phase): {diffAverageZiZeroPhase}");
}
