procedure IFFTSetting(inputMag, outputMag, centerFreq : boolean);

Sets the input and output form for an inverse FFT.  If inputMag is TRUE then the input data window(s) are assumed to be Magnitude/Phase pairs.  If FALSE then they are assumed Real/Imaginary pairs.  If outputMag is TRUE then the output is made to be Magnitude/Phase pairs otherwise they are made to be Real/Imaginary pairs.  If centerFreq is TRUE then the DC is centered.

Also see:  FFTSettings