This version (17 Apr 2018 08:55) was approved by Ashwin Radhakrishnan.

Real IFFT(ADAU145x)

Click here to return to the Frequency Domain page

Real IFFT is a block processing module which computes the IFFT of real signals

Input Pins

NameFormat [int/dec/float] - [control/audio]Function Description
Pin 0: Complex Input Complex-audioInput signal to the module

Output Pins

NameFormat [int/dec/float] - [control/audio]Function Description
Pin 0:Real Output Decimal-audioOutput signal from the module

Grow Algorithm

Add and Growth are not supported.

DSP Parameter Information

GUI Control NameCompiler NameFunction Description
splitCoeffsA(Globally defined in FFT))RealFFTBlkAlgsplitCoeffsASine coefficients
splitCoeffsB(Globally defined in FFT)RealFFTBlkAlgsplitCoeffsBCosine coefficients

Algorithm Description

This module computes the IFFT for Real input signals. IFFT is computed from the first half of the FFT output, using the complex conjugate symmetry properties of the FFT output, of real signals.


In the example shown below, IFFT of the FFT output of a real signal is computed, to retrieve the original signal back in time domain.

Supported IC's

1. ADAU145x

resources/tools-software/sigmastudio/toolbox/frequencydomain/ifft.txt · Last modified: 14 Mar 2018 08:01 by Ashwin Radhakrishnan