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Topic: fast FFT library (Read 6329 times) previous topic - next topic

g_u_e_s_t

i just finished making an arduino fft library
http://wiki.openmusiclabs.com/wiki/ArduinoFFT

it can do anywhere from 16 to 256 points
which returns 8 to 128 real frequency bins
and operates in ~7ms for a 256 point fft

there are multiple output functions
one of which is in octaves
so its pretty useful for doing sound work

pito

Well done!
It compiles with 1.0.1 as well.
What does it mean "there is a pure data patch for visualizing the data." pls?
p.

g_u_e_s_t

there should be a pure data patch in the folder
and it plots the fft data on a graph

pure data is an open source graphical programming language
specifically targetted at audio applications
highly reccomended

AWOL

Isn't "fast Fast Fourier Transform" a tautology?   ;)
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

g_u_e_s_t

i just finished an FHT
which can do the same thing as the FFT
but takes half the time and half the memory

http://wiki.openmusiclabs.com/wiki/ArduinoFHT

it has the same spectrum output options as the ArduinoFFT
so it is probaby preferable for almost all applications

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