Discrete Fourier Transform Dft
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
License: Freeware | Size: 10 KB | Download (45): zoom FFT Download |
HPC Challenge is a high performance benchmark suite. The HPC Challenge consists of basically 7 benchmarks: 1. HPL - the Linpack TPP benchmark which measures the floating point rate of execution for solving a linear system of equations. 2. DGEMM - measures the floating point rate of execution...
Platforms: *nix
License: Freeware | Size: 614.4 KB | Download (93): HPC Challenge Download |
Computes by using the FFT (fast Fourier transform) algorithm the covolution of two discrete sequences.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (40): fftconv Download |
Finding the Fourier transform of a rectangular pulse..filtering the spectrum and regenerating the signal usingthe filtered spectrum is done...at the end Rayleigh theorem is proved by showing that the energy content of both time domain and frequency domain signals are equal..your comments are...
Platforms: Matlab
License: Freeware | Size: 215.04 KB | Download (41): Fourier Analysis of a Rectangular Pulse Download |
Y = DCTN(X) returns the discrete cosine transform (DCT) of X.X = IDCTN(Y) returns the inverse discrete cosine transform (IDCT) of Y.Y = DSTN(X) returns the discrete sine transform (DST) of X.X = IDSTN(Y) returns the inverse discrete sine transform (IDST) of Y.X and Y can be N-dimensional.D =...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): Discrete (co)sine transform (and its inverse) Download |
This function allows one to calculate the Fourier transform of a chirped function evaluated at specific points using the stationary phase approximation.Imagine a pulse with a large time-bandwidth produce: this would require a large amount of data points in order to evaluate the Fourier transform....
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): Stationary phase approximation for performing Fourier Transforms Download |
This m file acquired and processed using chirp Fourier transform spectrum of HR4000 spectrometer
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (51): HR4000 Spectrometer in Matlab Download |
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.
Platforms: *nix
License: Shareware | Cost: $0.00 USD | Size: 40.96 KB | Download (63): Soundwave Download |
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
License: Shareware | Cost: $20.00 USD | Size: 542.72 KB | Download (50): FFT_Plugin Download |
JPEG compression using Discrete Cosine Transform TechniqueIn this code, Run Length Encoding is used to compress the Normalized DCT Coefficients, and corresponding Decoding techniques are used to decompress the image.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): JPEG Compression (DCT) Download |
PyFFTW: Python bindings to the FFTW3 C-library PyFFTW provieds Python bindings to the FFTW3 "Fastest Fourier Transform in the West." C-library(http://www.fftw.org/) for computing discrete Fourier transforms. It uses numpy and ctypes and includes a somewhat pythonic interface to the FFTW...
Platforms: *nix
License: Shareware | Cost: $0.00 USD | Size: 163.84 KB | Download (39): PyFFTW3 Download |
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
License: Freeware | Size: 5.8 MB | Download (510): Voxengo Span x64 Download |
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
License: Freeware | Size: 5.8 MB | Download (461): Voxengo Span Download |
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
License: Freeware | Size: 5.8 MB | Download (443): Voxengo Span for Mac OS X Download |
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
License: Shareware | Cost: $29.00 USD | Size: 488 KB | Download (58): Spectrum - Spectral Sound Visualizing Effect - V. Download |
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
License: Freeware | Size: 140.92 KB | Download (55): fftw++ Download |
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.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 38.28 KB | Download (45): Soundwave Download |
HARMASYLLABLESEG - Segments a signal stored in a WAV file into individual syllables. Also graphs the spectrogram and signal with syllables highlighted in red to show what parts of the signal contain syllables. INPUT: - FILENAME: The path to a signal stored in WAV format. The following arguments...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Harma Syllable Segmentation Download |
the stationary signal f(t)=cos(2*pi*5*t)+ cos(2*pi*10*t)+ cos(2*pi*20*t)+ cos(2*pi*50*t)having frequencies of 5,10, 20and 50 Hz at any given time instant.MATLAB program can be implemented to plot the stationary signal mentioned above:Clear...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): evaluating SHORT TIME FOURIER TRANSFORM of a stationary signal Download |
From GUI can import arbitrary data or audio signal. Next we can plot them both in time and frequency domain. Also we can visualize the short time Fourier transform of that signal.
Platforms: Matlab
License: Freeware | Size: 1.46 MB | Download (47): Didactic GUI Download |