Search Results for "fft c" - Page 2
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Showing 70 open source projects for "fft c"
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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... -
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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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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... -
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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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EMsieve
A simple sieve/prefactor program for Eisenstein-Mersenne Primes
... 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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TPlayer
media player focused on GPU acceleration
a fast multimedia player using ffmpeg to decode, opencl to do fft on audio and opengl to render. same code is also hosted at https://gitorious.org/tplayer/ -
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A cross platform dual channel FFT based Acoustic Analysis Tool to help engineers analyze live professional sound systems using the transfer function. One feature is the ability to capture four sample plots, average them, and invert to aid in final EQ
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aubioHPT
Audio high performance tempo tracking
A library which provides high performance beat detection for the Mac OS X and iOS platforms, based on Paul Brossier's aubio library. Using Apple's vDSP library for FFT computation and vector operations this library written in c++ prioritizes fast and energy-efficient beat detection. -
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The FFT library to "Keep It Simple, Stupid" This is the original home of kissfft. Most recent development is at https://github.com/mborgerding/kissfft Please ask questions on stackoverflow.com
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hsfft
FFT and Convolution in C
A simple, straightforward complex FFT Implementation in C/C++. It is designed to give good performance for non-power of length 2 FFTs. Only 1D , unit-stride implementation for singe core processors available as of now. USAGE HSFFT is designed specifically to handle time series data efficiently. The software is structured very similarly to available open source softwares like FFTW and kissfft. The data structure is almost identical to Mark Borgerding's kissfft implementaion. However... -
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QRealFourier
Qt-based FFT implementation
A Qt library for Fast Fourier Transform (FFT) of real samples. Based on the FFTReal library. -
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Virtual Sound Level Meter
Virtual Sound Level Meter for analyzing calibrated sound files
This project is the MATLAB development of a virtual sound level meter. The program will read in a calibrated .wav file and allow the user to analyze it as one would analyze a sound field with a sound level meter. The software implements Fast, Slow, Impulse and LEQ; A, C and Flat Weighting; Ln and Noise Dose analysis; Octave and 1/3 Octave band analysis; high resolution FFT analysis and spectrograms. Band analysis can be made using fast FFT methods or slower, but ANSI standard methods... -
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SmoothLife
A generalization of Conway's Game of Life
Conway's Game of Life is generalized to a continuous domain. OpenGL and GLSL shaders are used for real-time 2D and 3D graphics. Time stepping is done via a real to complex FFT based convolution operation. There are also two deliberately simple test implementations in FreeBasic and Matlab. A 2D version on a sphere shows that it is really not dependent on the underlying grid. -
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tiny-DSP library
small and fast library dealing with signal processing
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. -
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mpg321 is a completely Free drop-in replacement for mpg123. It has been designed to work as a drop-in replacement for mpg123, for the use of front ends, shell scripts, etc. It does all mp3 decoding using the high-quality integer-only MAD library.
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Python FFTW as the name suggests are Python bindings to the FFTW3 C-library from http://www.fftw.org. They use numpy and python ctypes, and often offer about twice the performance compared to the fft routines included in numpy.
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An implementation of the sparse FFT algorithms discovered by Mark Iwen and described in http://www.math.duke.edu/~markiwen/DukePage/Papers/JcFFTsubmit.pdf. Used for benchmarking in http://www.ima.umn.edu/preprints/jul2010/2326.pdf.
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This program transforms the sound or the image using a single large FFT window and allows to do many interesting and strange effects to sounds and images. There is included another program who does extreme-time-stretch of the audio.
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Foad is an open source software which receive an EKG Signal from scanner, WFDB database or heart sensors. Finding patient disease started by taking Fourier transform (FFT) from input signal and extract a single cycle. Based on some heuristic algorithm the most important feature like P , Q , R , S , T captured and feed to trained neural network. and so the final decision made by CNN library. As mentioned before this software also capable do some image processing on scanned paper to lower...
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funkGen is a software function generator intended as an educational tool. It has a number of basic generators and transforms, but can also combine those into more complex waveforms, Ouput sound files, graphics, or just raw data.
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Low-latency high speed hybrid framework-library for utilizing the IBM Cell processor SPE units (PS3, QS20) to carry out computational tasks. Provides some DSP tasks such as FFT and complex MAC. Thread-safe and easily extensible with new arithmetics tasks
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Tune is a note/chord detecting program for use with guitars, pianos, or voices. It uses an FFT to analyze incoming sound and computes the root frequency.
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Numerical package Parallel EXECution. Using a numerical package like Octave, 'npexec' distribute computation of a math formula among various network elements, collecting result automatically. ->y=npexec('fft(x.^m)', 'm=-8:8','x=ARG');
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libRfDsp is a collection of c++ tools for digital signal processing and simulation with a focus on RF/Microwave domain. The base data types are int, double and complex waveforms. Currently FFT, DDC, filtering and some basic operations are available.
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FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display. It provides several algorithms for processing audio data in the frequency domain with a highly interactive GUI to manipulate and display the spectral data.