Top "Fft" questions

FFT is short for fast Fourier transform, any of a set of algorithms for quickly computing the discrete Fourier transform (DFT).

the Length of signal in calculating FFT

I want to ask some questions related to the last question of mine so I don't want to post in …

matlab signal-processing fft wavelet
How to calculate FFT using NAudio in realtime (ASIO out)

I am programming clone of guitar (violin) Hero as a final project for this school year. The idea is to …

c# fft naudio asio
how to transform frequency domain into time domain

I had created a 3 three different frequency signal and filter out the signal i don't want. But when i using …

matlab time fft ifft time-frequency
Calculating convolution of two functions using FFT (FFTW)

I'm trying to speed up a computation for a neural simulator using the FFT. The equation is: (1) \sum(j=1 to …

c++ math fft fftw biological-neural-network
Matlab Template Matching Using FFT

I am struggling with template matching in the Fourier domain in Matlab. Here are my images (the artist is RamalamaCreatures …

matlab image-processing fft template-matching cross-correlation
2D FFT using 1D FFT

I am trying to implement a 2D FFT using 1D FFTs. I have a matrix of size 4x4 (row major) …

signal-processing fft
Android 2.3 Visualizer - Trouble understanding getFft()

First time here so sorry in advance for any butchered formatting. So I am completely new to DSP so I …

android signal-processing fft visualizer android-sdk-2.3
Computational complexity of an n-dimensional Fast Fourier Transform?

I'm trying to write a bit of code that will predict the time taken to perform a discrete Fourier transform …

math fft big-o
get frequency and amplitude from wave file

I want to get frequency and amplitude from wave file using c#. I tried naudio and FFT, but result is …

c# fft frequency wave amplitude
iOS FFT Draw spectrum

I've read these question: Using the Apple FFT and Accelerate Framework How do I set up a buffer when doing …

ios core-audio fft spectrum vdsp