Fast Fourier Transform Matlab

This program is open source code of fast Fourier transform in matlab.Where y is the input argument and p is the normalized size of the input. Lety = [1 2 3 4 ];x= length(y);m= log2(x);p= ceil(m);To call the function useft2(y,p);

VB Super Fast Fourier Transform ActiveX dll source code. Perform speed optimized DFT and IFT.

Implementation of Fast Fourier Transform based Homogenization for heterogeneous materials dealing with electric or heat conductiviy. It takes the values of conductivity at regular grid of periodic unit cell that represents the material and produces the distribution of local fields such as...


Platforms: Matlab

FFT_Plugin is a REALBasic plugin designed to do direct and inverse Fast Fourier Transform. Windowing included with rectangular, triangular, Haming, Hanning, Welch, Blackman. compatible MacOS Classic (PPC,68k), MacOSX. Include FFT 2D. What's new in this version: Now is Universal Binary.


Platforms: Mac

This program calculates the non-destructive zoom Fast Fourier transform of a time history.The input file must be time(sec) and amplitude(units)Reference: Randall, Frequency Analysis, Bruel & Kjaer, page 170.


Platforms: Matlab

Fourier Transform Lab Student Edition is an advanced application designed for performing Fourier transformations, which can be useful in teaching Crystallography, since they are related to Optical Transforms (e.g. laser diffraction patterns). Furthermore one may get a quick hands-on experience...


Platforms: Windows

The Fourier transform takes a signal in the time domain and maps it, without loss of information, into the frequency domain. The frequency domain representation is exactly the same signal, in a different form. The inverse Fourier transform(IDFT) maps the signal back from the frequency domain into...


Platforms: Matlab

This demonstration is intended for people who know something about the theory of the discrete Fourier transform, and who would find it helpful to see some its properties demonstrated graphically, using a programming language.The demonstration shows the form of the Fourier components of a signal...


Platforms: Matlab

Computes by using the FFT (fast Fourier transform) algorithm the covolution of two discrete sequences.


Platforms: Matlab

DFT transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function (which is often a function in the time domain). But the DFT requires an input function that is discrete and whose non-zero values have a limited (finite)...


Platforms: Matlab

SPAN is a real-time 'fast Fourier transform' audio spectrum analyzer plug-in for professional music and audio production applications. For the most part it was derived from Voxengo GlissEQ dynamic parametric equalizer and reproduces its spectrum analysis functionality. SPAN provides you with a...


Platforms: Windows

SPAN is a real-time 'fast Fourier transform' audio spectrum analyzer plug-in for professional music and audio production applications. For the most part it was derived from Voxengo GlissEQ dynamic parametric equalizer and reproduces its spectrum analysis functionality. SPAN provides you with a...


Platforms: Windows

SPAN is a real-time 'fast Fourier transform' audio spectrum analyzer plug-in for professional music and audio production applications. For the most part it was derived from Voxengo GlissEQ dynamic parametric equalizer and reproduces its spectrum analysis functionality. SPAN provides you with a...


Platforms: Mac

Spectrum is a sound visualization effect based on FFT (Fast Fourier Transform) analysis. This effect is not exactly a scientific implementation but very useful to give visual feedback of the frequency components in playing sound in realtime. It is available for Flash (Player 9, ActionScript 3)...


Platforms: Windows, Mac, Unix, Linux

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.


Platforms: Windows, Mac, BSD, Linux

PDL::FFTW is a PDL interface to the Fastest Fourier Transform in the West v2.x. This is a means to interface PDL with the FFTW library. Its similar to the standard FFT routine but its usually faster and has support for real transforms. It works well for the types of PDLs for which was the...


Platforms: *nix

This function returns N point DFT samples of 2dw band of Fourier transform of a sequence. Typically, fft() returns N samples of Fourier transform ranging from 0 to 2pi. This function takes the N-point DFT samples and returns N-point samples corresponding to frequency band wc-dw to wc+dw.


Platforms: Matlab

EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT algorithm for calculation of the DFT using only...


Platforms: Matlab

Katmus Katmus is an application for manual music transcription. It is based on QT4 and runs under GNU/Linux. Katmus features a score editor synchronized with a wave file, time stretching, audio analysis through the fast Fourier transform (FFT), play scores, export scores to lilypond, pdf, midi...,


Platforms: *nix

Here is another fast implementation of the FGT transform.Reference :http://www.cs.ubc.ca/~awll/nbody_methods.html


Platforms: Matlab