For a basis I followed an example from this links:
I don't understand function ippsFFTFwd_CToC_32fc(pSrc,pDst,pFFTSpec,pFFTWorkBuf); To make a FFT it is necessary to have values of any signal.
be more specific (and don't use Ru comments in the posted code) - I don't understand your question. Put "any signal" to pSrc and you'll have transformed signal in pDst. What is the problem?