コード例 #1
0
        private static Complex[] InternalFFT(float[] data)
        {
            var fftComplex = new Complex[data.Length];

            for (int i = 0; i < data.Length; i++)
            {
                fftComplex[i] = new Complex(data[i], 0.0);
            }
            FFTProcessor.Transform(fftComplex, false);
            //Accord.Math.FourierTransform.FFT(fftComplex, Accord.Math.FourierTransform.Direction.Forward);
            var n = data.Length;

            for (int i = 0; i < n; i++)  // Scaling (because this FFT implementation omits it)
            {
                fftComplex[i] /= n;
            }

            return(fftComplex);
        }