The CUFFT library manual is not very elaborate on this. It only says it’s for doing multiple FFTs in parallel. Does that mean multiple FFTs on the same exact dataset? Or on different parts of the input array?
Is it like this?
Does it mean that the input (and output) array needs to be the size of FFTSIZE*BATCH?
I’m interested in 1d R2C transforms for turning audio from time domain to frequency domain (spectrum analysis).