Fourier Transform Software

EssentialFTIR 2.0.45 Operant LLC 

EssentialFTIR is a complete program for handling Fourier transform Infrared data. This is a search program for FDM FTIR Reference Spectra Databases, it is easy to use, and it makes complex data manipulations simple. The powerful batch-processing option automates repetitive tasks.

It reads and writes data in industry-standard file . Free download of EssentialFTIR 2.0.45, size 20.46 Mb.


1D Fast Fourier Transform 6.0 Brown University 

The Fourier transform is a powerful tool allowing us to move back and forth between the spatial and frequency domains. This applet helps students feel comfortable, helping to build a strong intuitive grasp of how signals in one domain correspond to signals in the other.

Students can load scanlines from common image patterns and see . Freeware download of 1D Fast Fourier Transform 6.0, size 25.06 Mb.

2D FFT/iFFT plugin 1.0 KamLex 

User-friendly 2D FFT/iFFT (Fast Fourier transform) plug-in for Adobe PhotoShop compatible plug-in hosts. It uses one of the fastest implementations of the Discrete Fourier transform and has many applications including periodic noise removal and pattern detection. This can be very useful in analyzing fingerprints, paper sieve patterns etc. . Freeware download of 2D FFT/iFFT plugin 1.0, size 399.36 Kb.

AAFFT (Ann Arbor Fast Fourier Transform) 1.0 

A Fast Fourier transform (FFT) method for frequency sparse functions. Recovers the k most energetic frequencies hidden in a bandwidth-N function in k*polylog(N) time. . Freeware download of AAFFT (Ann Arbor Fast Fourier Transform) 1.0, size 149.67 Kb.

Voxengo SPAN Plus 1.0 Aleksey Vaneev 

Voxengo SPAN Plus is a handy and reliable VTS plugin designed to analyze audio spectrums in real time via the Fast Fourier transform (FFT method).

Voxengo SPAN Plus is an extended version of Voxengo Span, with enhancements in spectrum display and import / export operations.

. Free download of Voxengo SPAN Plus 1.0, size 0 b.

DSP Test 0.3 Abhir Joshi 

DSP Test is a handy application designed to help you understand the Discrete Fourier transform concept.

The program can calculate and plot the DFT of a random time domain signal, which is drawn by the user. Based on the cutoff frequency, DSP Test automatically generates the reconstructed signal.

. Freeware download of DSP Test 0.3, size 0 b.

2D-Fourier 1.4 Infi 

2D Fourier calculates the two-dimensional Fourier transform of an image. Color images are first transferred to black/white. The Fourier image shows the amplitude of the complex kvectors along kx and ky axes. In complex setting the App shows the real and imaginary parts of k in red and blue, respectively.

Selected regions of the Fourier . Freeware download of 2D-Fourier 1.4, size 3.67 Mb.

Fourier Properties Anaxagoras Fotopoulos 

A quick reference application for Fourier Tranform Properties from DSP theory. Includes Discrete Time Fourier transform (DTFT) and Continuous Time Fourier transform (CTFT).

App History V1.0 First version.

Application is courtesy of Quarinos Corporation. . Freeware download of Fourier Properties, size 1.05 Mb.

FTNMR Simulation 1.0 Virginia Tech Chemistry 

FTNMR Simulator is a Microsoft Windows program that simulates the prinicples and operation of Fourier transform NMR. You can interactively change the different parameters involved and view the results.This is an improved version of the original simulation program; now you can even listen to your FID! . Freeware download of FTNMR Simulation 1.0, size 3.11 Mb.

AVR FFT LCD 20081031 

This is a demo of A/D conversion, Fast Fourier transform (by Chan), and displaying the signal and FFT result on LCD (128x64), developed with mega128 and WinAVR-20080610. . Freeware download of AVR FFT LCD 20081031, size 19.34 Kb.

Concept-dsp 32 

This program is intended as an educational tool to explain the concept of Discrete Fourier transform (DFT). It uses the Fast Fourier transform to calculate the DFT of a given arbitrary time domain signal and plots it graphically. . Freeware download of Concept-dsp 32, size 3.74 Mb.

fftw++ 1.09 

FFTW++ is a C++ header class for the FFTW Fast Fourier transform library that automates memory allocation, alignment, planning, and wisdom. In 2D and 3D, implicit dealiasing of convolutions substantially reduces memory usage and computation time. . Freeware download of fftw++ 1.09, size 144.30 Kb.

GFourier 0.4.1 

GFourier is a GIMP plug-in to manipulate images in the frecuency domain, using Fourier transform. . Freeware download of GFourier 0.4.1, size 65.67 Kb.

Guitar Tuner Java Applet 1.1 

Online Guitar Tuner java applet which analyse your microphone or any other sound input to find fundamental frequency using a Fast Fourier transform.Classical "Vintage" design looking like real guitar tuners. . Freeware download of Guitar Tuner Java Applet 1.1, size 60.57 Kb.

Soundwave 0.1 

A visualization of the Fourier transform applied to sound data. Analyzes a time-domain sound sample using the Fourier transform, and graphically displays the results and sound in real time. Attempts to audio into sheet music. . Freeware download of Soundwave 0.1, size 39.20 Kb.

tiny-DSP library 0.1 Tinydsp 

Tiny-DSP library contains c sources of a fast, tiny, portable and generic FFT (Fast Fourier transform) and inverse FFT. Supported are all power of two sizes (like 2,4,8,16,32,...) for one and two dimensional floating point arrays.

tiny-DSP library 0.1 License - Public Domain . Freeware download of tiny-DSP library 0.1, size 2.71 Kb.

Stretched exponential spectrum (KWW) 1.0 

C routines for numeric computation of sin and cos Fourier transform of the stretched exponential function exp(-t^b), also known as Kohlrausch-Williams-Watts function. Frequently used to describe spectra of disordered systems.

Stretched exponential spectrum (KWW) 1.0 License - GNU General Public License version 2.0 (GPLv2) . Freeware download of Stretched exponential spectrum (KWW) 1.0, size 0 b.

Arbitrarily-Decomposed MPI FFT 1.0 Admpifft 

The Arbitrarily-Decomposed MPI FFT library is a C subroutine library for the computation of the multidimensional Fast Fourier transform (FFT) of a distributed grid using the Message-Passing Interface (MPI).

Arbitrarily-Decomposed MPI FFT 1.0 License - MIT License . Freeware download of Arbitrarily-Decomposed MPI FFT 1.0, size 0 b.

OCaml FFTW 1.0 Ocaml-fftw 

OCaml interface to FFTW3 -- the Fastest Fourier transform in the West! ( The code is developed at using bzr.

OCaml FFTW 1.0 License - GNU Library or Lesser General Public License version 2.0 (LGPLv2) . Freeware download of OCaml FFTW 1.0, size 0 b.

MicScope Pixelvr 

MicScope, the app so that the oscilloscope displays the waveform which is input from the microphone.

FFT function (Fast Fourier transform), as the spectrum analyzer, to analyze the waveform, the peak frequency displayed in the read-out. . Free download of MicScope, size 1.05 Mb.