Convolver GetFilter(Complex[] spectrum, float gain, int sampleRate)
{
Equalizer eq = new Equalizer();
float[] filterSamples = phasePerfect.IsChecked.Value
? eq.GetLinearConvolution(sampleRate, spectrum.Length / 2, gain, spectrum)
: eq.GetConvolution(sampleRate, spectrum.Length / 2, gain, spectrum);
return(new Convolver(filterSamples, 0));
}