FFT on audio samples

[da_coolest]

Hi, I have loaded samples from a wav file to the memory and received it from SoundBuffer. I want to use FFTW to run FFT on these samples. FFTW takes the input as fftw_complex objects. What type of conversion do I have to do on the sample array to pass it to the FFTW ?

Thanks.

[Laurent]

I have no idea, this is rather specific to FFTW.

SFML's samples are 16-bits signed integers, there's nothing complicated. I have no idea why FFTW requires complex numbers.

[da_coolest]

Thanks for the reply. I'm trying to come up with a method to convert data into FFTW's format.