This node converts the complex output of a discrete Fourier transform (DFT) with a real and imaginary part to a magnitude and phase representation. The real $\mathrm{r}[n]$ and imaginary $\mathrm{i}[n]$ part of the DFT are set via the two input slots. The format of the magnitude signal $\mathrm{m}[n]$ can be selected via the format input slot:

• Format = 0: (standard)
  $\mathrm{m}[n] = \sqrt{\mathrm{r}[n]^2 + \mathrm{i}[n]^2} $
• Format = 1: (dB)
  $\mathrm{m}[n] = 20 \log \left(\sqrt{\mathrm{r}[n]^2 + \mathrm{i}[n]^2}\right) $
• Format = 2: (normalized)
  $\mathrm{m}[n] = \sqrt{\mathrm{r}[n]^2 + \mathrm{i}[n]^2} / N $
  where $N$ is the length of input signals $\mathrm{r}[n]$ and $\mathrm{i}[n]$.

The phase signal $\mathrm{p}[n]$ is computed by: