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FFT is used everywhere. Image, video, audio and biomedical signal processing, just to name a few. FFT is a very CPU-intensive transformation and everybody wants the fastest solution. It’s here.
Until Superpowered, Apple’s vDSP had the fastest FFT for mobile devices. There are some other libraries claiming they have a faster solution, but every time we download and test those, they always fail to deliver on the devices we have.
The Superpowered iOS and Android FFT processes with the same speed as Apple’s vDSP. We don’t claim we’re faster (sometimes we do), but definitely not slower.
FFT by itself is not really useful when you need to work with magnitudes and phases, not just complex numbers. In this case, you need Polar FFT.
We made it super convenient for you: just one call to do the whole transformation. And here is the big deal: the Superpowered Polar iOS and Android FFT is at least 2x faster than Apple’s vDSP.