public FftUpsampler(int factor, int fftLength)
: base(FilterType.FftUpsampler)
{
if (factor <= 1 || !IsPowerOfTwo(factor))
{
throw new ArgumentException("factor must be power of two integer and larger than 1");
}
mFactor = factor;
System.Diagnostics.Debug.Assert(IsPowerOfTwo(fftLength));
mFFT = new WWOverlappedFft(fftLength, fftLength * mFactor);
mFFT.SetGain(mFactor);
}
