Search Results for "fft" - Page 2
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Showing 99 open source projects for "fft"
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PyArmadillo
linear algebra library for Python
PyArmadillo - streamlined linear algebra library for Python, with emphasis on ease of use. Alternative to NumPy / SciPy. * Main page: https://pyarma.sourceforge.io * Documentation: https://pyarma.sourceforge.io/docs.html * Bug reports: https://pyarma.sourceforge.io/faq.html * Git repo: https://gitlab.com/jason-rumengan/pyarma -
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DarkF
DarkF is an FFT optical simulation code for GW inteferometers
DarkF is an optical simulation code in FORTRAN 90 able to represent with a high accuracy any kind of stable cavity, even when many static or dynamical defects are present, like misalignments, curvature errors, surface irregularities, substrate inhomogeneities. It uses a plane wave decomposition to propagate the wavefronts. Beams and mirrors are sampled on a grid of coordinates (x; y) and the DarkF resolution is depending on the grid size and on the sampling rate (typically a size of 0.6m... -
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fft
A fast distributed file transfer
fft is a distributed file transfer tool designed to accelerate large file movement by coordinating multiple relay nodes in parallel rather than depending on a single server’s bandwidth ceiling. Its architecture splits a transfer into concurrent “workers” that fetch or push chunks across multiple paths, improving throughput on high-latency or bandwidth-constrained links. -
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Audacity Engineering Edition
Audacity Engineering Edition
Aimed to deeper analysis and measurements. -
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Gqrx software defined radio receiver
Software defined radio for Linux and Mac
Gqrx is a software defined radio receiver powered by GNU Radio and the Qt GUI toolkit. It can process I/Q data from many types of input devices, including Funcube Dongle Pro/Pro+, rtl-sdr, HackRF, and Universal Software Radio Peripheral (USRP) devices. -
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CbProcessingVisual
Visual using the java processing API
I was asked to upload this project and give a short description here: It's based on java processing api. Then i used some fft analyzer which should be obvious looking at the code. There is a option to generate the fft file. this must be done first. Then the fft file can be used to render a movie. Not sure how the options worked to make arealtime fft analysis and show the video in realtime (it does not peprfform goog because some expensive framebuffer operations there) Ah ja, the demo video includes some effects that are not included in the source. ... -
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JPIV
Particle Image Velocimetry
JPIV is a platform independent, graphical stand-alone application for Particle Image Velocimetry (PIV) written in Java. PIV is an optical technique for measuring fluid flow velocities. JPIV moved to GitHub. Please visit us at: https://eguvep.github.io/jpiv/ -
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Command line FFT
A simple command line utility to produce an FFT/IFFT of ASCII data
Ever had a bunch of ASCII data that you would like to have a quick look at in frequency domain, but don't want to fire up some bulky analysis software package just for that? Well, I have... So I wrote this tiny tool. It is based on fftw (www.fftw.org) and boost's program options (boost.org). cli-fft is really simple: All it does is to receive ASCII data from a file or standard in, FFT it and write out the result into a file or to standard out. -
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bel_fft
FFT co-processor in Verilog based on the KISS FFT
bel_fft is a FFT co-processor that can calculate FFTs with arbitrary radix. It is a hardware implementation of the free software Kiss FFT ("Keep it simple, Stupid!"). The target was to allow a simple replacement of the software code with the hardware implementation. Therefore bel_fft comes with a software driver that is compatible with the Kiss FFT routines. bel_fft also has a modular architecture and allows interfacing different bus architectures. -
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ImagingAnalysis
Direct tissue-level image quantification package for Mathematica
ImagingAnalysis is a Mathematica package that performs grid-based analysis of time-lapse imaging data saved in a sequence of TIFF files. This package requires Mathematica 7.0. Revised on 14 May 2017: Bugs are fixed and incompatibility issues are resolved. The current version runs on Mathematica 11. -
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MSU's Sparse Fourier Repository
The Home of DMSFT, AAFFT, GFFT, and MSFFT.
...Currently codes for four different prototype sparse FFTs are here: 1.) DMSFT, implemented by Ruochuan Zhang. This is a fast, stable, noise robust, and *fully discrete* improvement on the ideas in GFFT below. It is THE BEST sparse FFT around!!! If you're looking for AAFFT, try this out first. 2.) AAFFT, implemented by Mark Iwen in 2008. This code is easy to use, and documented well, but not implemented very efficiently. It is much slower than it should be. 3.) GFFT, implemented by Ben Segal and Mark Iwen. This code is less easy to use, and also not terribly efficient. ... -
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wavelib
C Implementation of Wavelet Transform (DWT,SWT and MODWT)
Methods Implemented DWT/IDWT A decimated Discrete Wavelet Transform implementation using implicit signal extension and up/downsampling so it is a fast implementation. A FFT based implementation is optional but will not be usually needed. Both periodic and symmetric options are available. SWT/ISWT Stationary Wavelet Transform. It works only for signal lengths that are multiples of 2^J where J is the number of decomposition levels. For signals of other lengths see MODWT implementation. MODWT/IMODWT Maximal Overlap Discrete Wavelet Transform is another undecimated transform. ... -
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Generic simple and efficient Fast Fourier Transforms (FFT) implementation using policy-based design and template metaprogramming in C++
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DFT Functions With Octave
Real Spectrum Analysis with Octave and MATLAB
Abstract – A set of functions are presented for Octave / MATLAB that allow easy, consistent, and properly scaled DFT / FFT analysis of Signals and Noise. The techniques and functions presented are easily translated to other scripting or compiled programming languages. -
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Qi - Quantitative Imaging (PIV and more)
A collection of MATLAB tools for PIV, PTV, particle sizing, and more.
Qi is a collection of MATLAB tools for the quantitative analysis of flow field images. Our Particle Image Velocimetry (PIV) tool, prana, implements a Robust Phase Correlation kernel for PIV analysis, and now includes Particle Tracking Velocimetry and sizing tools. Tools for pressure calculation, proper orthogonal decomposition (POD), and 3d imaging are under development. -
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FFTL
Templated Fast Fourier Transform in C++
Now moved to GitHub: https://github.com/CoreyShay/FFTL Provides some relatively easier to use than normal templated FFT classes written in C++. This is currently still a work in progress, but the FFT portion (complex and real) both output the correct results, and the code executes very quickly, around only 30% or so slower than the much more difficult to compile FFTW on SSE enabled platforms. Though optimized code only runs on SSE (x86) based platforms, it's a very simple matter to port the existing code to any other platform with different SIMD intrinsics by simply implementing a small number of inlines that map to a small number of intrinsics. ... -
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math lib for .NET. n-dim arrays, complex numbers, linear algebra, FFT, sorting, cells- and logical arrays as well as 3D plotting classes help developing algorithms on every platform supporting .NET. Sources from SVN, binaries: http://ilnumerics.net
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MaxCalc
Max's tiny but powerful Calculator
Maxcalc is a small and portable calculator for Microsoft Windows. It as been designed to be a quick access calculator. -
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Xtreme Media Player
Xtreme Media Player is a free cross-platform media player.
...It provides the user with a graphical interface for choosing music files and playlists - and includes support for many audio file formats including .spx, .snd, .aifc, .aif, .wav, .au, .flac, .mp1, .mp2, .mp3, .ogg, .aac, and .m4a. The code is very modular to allow the straightforward extraction of core modules (such as the audio engine, the FFT analysis, the playlist management module, and several visualizations) to use in other projects as external libraries. A key feature of XtremeMP is the capability to view visualizations (on-screen graphics controlled by the music’s audio). These can have scientific/technical purposes such as depicting some properties of the audio (such as the Oscilloscope, Spectrum, Stereogram, and Spectrogram visualizations). -
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The CLUNK C++ library provides support for real-time 3D(binaural) sound generation. It puts virtually no limitations on the developer; people who have experienced working with other solutions (such as SDL_Mixer or Creative OpenAL) will respect this advan
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FFT for ARMv6
Fixed point 16/32 integer FFT library for the Raspberry Pi and Android
This library is being created as I have a need to do very fast FFTs on low end devices not supporting the NEON instruction set. The Raspberry Pi is an ideal candidate for developing in gcc before porting to JNI for low spec Android devices, hence it's inclusion. Fixed point 16/32 integer FFT library suitable for the Raspberry Pi and Android devices. Includes test stubs for gcc on the Raspberry Pi and a Basic4Android wrapper from JNI. It includes hand optimised ARMv6 assembler, demonstrating techniques such as pipeline stuffing to achieve maximum performance. It also demonstrates how to include large chunks of assembler inline with C/C++ thus avoiding ABI issues between platforms. -
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EMsieve
A simple sieve/prefactor program for Eisenstein-Mersenne Primes
...Related probable primes (3^p -+ 3^((p + 1)/2) + 1)/7 are sieved at the same time. See http://oeis.org/A125743, A125744. After sieving, the Berrizbeitia-Iskra or a Proth test can be run; this is best implemented with FFT mod (3^3p+1) using GWNUM library. A sample implementation (a patch to the LLR program) is available from Batalov. [1] P.Berrizbeitia B.Iskra, 2010; http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.189.311 [2] OEIS: http://oeis.org/ -
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wfProc is going to be a Python module for waveform processing. The module will incude simple operations such as addition, subtraction etc, taking into account the timeline of the waveform, as well as filtering, fft and other more complex operations.
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Offer a low-level command-line interface to handle PCM Wave files of any sample rate and bit depths. Provide useful tools such as noise gate, signal generators, FFT and statistical analyzises, DC correction. Plugin architecture easy to extend.
