Software Listing: Fast Fourier Transform

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. Let y = [1 2 3 4 ]; x= length(y); m= log2(x); p= ceil(m); To call the function use ft2(y,p);.

  • Platform: Matlab, Scripts

VB Super Fast Fourier Transform ActiveX dll source code. Perform speed optimized DFT and IFT.. BORG DESIGN - Lista firmelor din Romania, Comanda Online, Faxing, Mailing, Emailing, Marketing Direct B2B..

  • Platform: Win2000, WinOther

VB Super Fast Fourier Transform ActiveX dll source code. Perform speed optimized DFT and IFT.. GoldWord - Online Dictionary and Translation Software. GoldWord offers the ideal solution for home and office use, GoldWord translation software provides automatic translation to any word or phrase, in most used application, at any moment, just at a click of a button, Translating over 200 languages combinatio.

  • Platform:

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..

  • Publisher: KamLex
  • Date: 23-07-2012
  • Size: 390 KB
  • Platform: WinOther

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..

  • Platform: WinOther

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 electric field and electric current or temperature gradient or heat flux. The effective conductivity matrix is also produced. The algorithm works both in two and three-dimensional case..

  • Platform: Matlab, Scripts

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.


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  • Platform: Win7 x64, Windows 7, WinOther, WinVista, WinVista x64
  • zoom FFT
  • License: Freeware
  • Price: 0.00
  • Rating

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..

  • Publisher: Tom Irvine
  • Date: 26-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The Fourier Transform is a powerful tool allowing us to move back and forth between the spatial and frequency domains. Many of our explanations of key aspects of signal processing rely on an understanding of how and why a certain operation is performed in one domain or another. This applet helps students feel comfortable with these explanations, 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 that scanline's Fourier Transform in real-time. For example, they can load the scanline of a standard test image to note how most of the energy is concentrated at low frequencies -- a key to why low-pass filtering doesn't render an image unintelligible.

  • Platform: Win2000, Windows 7, WinOther

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

  • Platform: Matlab, Scripts

This is a program that splits sound taken from the microphone into its basic frequencies and displays them real-time in a window. You can whistle to the microphone and see the plot going up and down with the change of pitch. The program uses the Fast Fourier Transform (FFT) algorithm..

  • Platform: WinOther

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) and has very good performance. There are numerous parameters for easy configuration and simplified usage with your own Flash projects. You can even define new colors for the gradients..

  • Publisher: Adam
  • Date: 17-02-2011
  • Platform: PHP, Scripts

Pitch measuring accuracy much higher then usual software tuners based on fast Fourier transform (FFT). This software use special algorithm instead of FFT. Acoustic guitar strings tuning. High precession note pitch measuring. This simple software determining exactly pitch of your guitar strings, by using microphone and sound card. You can try it free of charge even without microphone. If you think you can tune your guitar exactly using only reference tones, you are poorly wrong. Theoretically, when you are using reference tones and the frequencies are roughly the same, a great resonance is produced.

  • Publisher: Xitona
  • Date: 04-05-2007
  • Size: 1208 KB
  • Platform: Win2000, Windows Server, Windows Vista, WinOther

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..

  • Platform: Linux, WinOther

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..

  • Platform: Linux, WinOther
  • eXtace
  • License: Freeware
  • Price: 0.00
  • Rating

eXtace is a 3D audio visualization tool (or eye candy depending on how you look at it). eXtace requires ESD (Esound) for its sound input source. It performs a FFT (fast fourier transform) on audio and displays it via various graphical modes..

  • Platform: Linux, Mac OS X, Unix
  • fftw++
  • License: Freeware
  • Price: 0.00
  • Rating

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..

  • Platform: Linux, Mac OS X, Unix, WinOther

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..

  • Platform: Linux, Mac OS X, WinOther

W = mywigner(Ex) W = output Wigner distribution Ex = Input electric field (MUST be a column vector Notes: W = Int(-inf..inf){E(x+y)E(x-y)exp[2ixy]} E(x+y) & E(x-y) are calculated via a FFT (fast Fourier transform) using the shift theorem. The integration is performed via a FFT. Thus it is important for the data to satisfy the sampling theorem: dy = 2*pi/X X = span of all x-values dy = y resolution dx = 2*pi/Y Y = span of all y-values dx = x resolution The data must be completely contained within the range x(0)..x(N-1) & y(0)..y(N-1) (i.e. the function must fall to zero within this range)..

  • Publisher: Adam Wyatt
  • Date: 04-01-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

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 License - Public Domain.

  • Publisher: Tinydsp
  • Date:
  • Size: 2 KB
  • Platform: Linux, Unix, WinOther

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