hifi-lofi / audiofft Goto Github PK
View Code? Open in Web Editor NEW1D real data FFT in C++ for usage e.g. in real time audio applications
License: MIT License
1D real data FFT in C++ for usage e.g. in real time audio applications
License: MIT License
Hi.
Nice job with the library. I assume the fft goes until 2pi?
Thank you.
Marcos
So that it can be used at compile time to declare an std::array for example
Hi there,
In your README in your example code, when you initialise your real and imaginary arrays you write:
std::vector<float> re(fftaudio::AudioFFT::ComplexSize(fftSize));
std::vector<float> im(fftaudio::AudioFFT::ComplexSize(fftSize));
but your namespace is called 'audiofft'.
A tiny thing, but it would save others a few mins to fix it, hard to spot! :)
Great library BTW!
Thanks!
Adam
Dear,
As you say,
if I use the nfft=2^16,the time will more than 10s, is it ?
Thx
Hi,
First of all - thanks for making the AudioFFT under the MIT license.
I am trying to add support for Intel IPP.
My issue is:
As much as I can see, it is the same size as the input, which means it preserves the conjugate symmetries above the N/2 + 1
mark. There are functions that would compute the DFT with "packing" to what seems to be N/2 + 1
length, but they don't produce complex results... and this confuses me...
Any chance you have used the IPP?
Cheers!
virtual ~FFTW3FFT()
{
init(0); <= It seems that 'fftw' resources will not be freed in such destructor.
}
Because in 'init' function deallocation will be done only if 'init' parameter is greater than zero.
I had a question...while calculating fft of input samples, does this code takes arbitrary size of input and calculate say 4096-fft, because apparently it calculates only if the no. of input samples is same as the fftsize? Please help..
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