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Questions tagged fft

24 questions

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11
votes
1
answers

Calculate FFT from audio file

java audio fft audiotrack
asked 2013-07-10T07:56:42.437
8
votes
1
answers

Python plot frequency of fft.rfft

python plot fft analysis frequency
asked 2013-06-15T11:59:21.727
8
votes
3
answers

cuFFT and streams

cuda fft
asked 2013-06-07T17:44:04.300
12
votes
3
answers

Python SciPy convolve vs fftconvolve

python scipy fft convolution
asked 2013-02-22T06:54:51.070
8
votes
3
answers

Grayscale image to NumPy array for Fourier transform

python image-processing numpy python-imaging-library fft
asked 2013-01-29T06:35:16.463
31
votes
2
answers

Fast Fourier Transform in R

r time-series fft period spectral-density
asked 2012-12-23T11:30:24.237
10
votes
1
answers

Performing Fourier Transform with Thrust

cuda fft thrust
asked 2012-12-02T11:52:03.713
10
votes
1
answers

Computing Autocorrelation with FFT Using JTransforms Library

java fft time-series correlation
asked 2012-09-02T19:33:36.640
15
votes
2
answers

Get Hz frequency from audio stream on iPhone

iphone ios audio core-audio fft
asked 2012-07-27T11:12:04.843
10
votes
2
answers

How to convert 16-bit PCM audio byte-array to double or float array?

java android fft
asked 2012-04-25T21:51:29.700
10
votes
2
answers

MATLAB FFT xaxis limits messing up and fftshift

matlab fft
asked 2012-03-14T00:30:47.860
9
votes
3
answers

Units of frequency when using FFT in NumPy

numpy signal-processing fft
asked 2011-12-20T10:01:32.583
15
votes
3
answers

what is the fastest FFT library for iOS/Android ARM devices?

android ios arm fft neon
asked 2011-11-03T22:12:40.227
11
votes
2
answers

Matlab inverse FFT from phase/magnitude only

matlab fft phase
asked 2011-10-14T04:40:01.800
33
votes
1
answers

How to get frequency from fft result?

java android signal-processing fft pcm
asked 2011-10-06T13:26:07.343
77
votes
3
answers

What is the difference between numpy.fft and scipy.fftpack?

python numpy scipy fft
asked 2011-06-15T19:28:04.247
22
votes
5
answers

High Pass Filter for image processing in python by using scipy/numpy

python numpy image-processing scipy fft
asked 2011-05-23T08:55:21.657
15
votes
3
answers

Fast Fourier Transform

c++ c signal-processing fft dft
asked 2011-03-10T04:30:44.210
19
votes
1
answers

How to extract frequency information from samples from PortAudio using FFTW in C

c audio fft fftw portaudio
asked 2010-06-17T00:58:30.373
13
votes
5
answers

Converting an FFT to a spectogram

c++ fft spectrogram intel-ipp
asked 2009-11-05T11:33:37.497
78
votes
5
answers

Units of a Fourier Transform (FFT) when doing Spectral Analysis of a Signal

math physics fft measurement spectrum
asked 2009-10-06T05:54:54.027
9
votes
2
answers

How do I multiply the spectra of two images of different dimensions?

image-processing signal-processing fft convolution
asked 2009-09-03T21:32:38.373
15
votes
3
answers

Explain the FFT to me

audio signals frequency fft
asked 2009-08-13T04:22:41.827
79
votes
9
answers

An implementation of the fast Fourier transform (FFT) in C#

c# signal-processing fft
asked 2008-10-04T14:12:19.573