In what language did you write your FHT?!?DaveHoskins wrote:Thanks.
The smallest frequency domain is 256 samples, and the latency is brought to zero with SSE code in time domain convolution at the beginning.
From very basic tests my FHT came in just slightly slower than FFTW which I'm perfectly happy with!
Yeah, it surprised me as well, but I did work hard to achieve it.
Dave.
*edit*
I don't think FFTW is actually free?
fftw is now free for both commercial and non commercial use: http://www.fftw.org/faq/section1.html#isfftwfree