The Google article specifically says they were able to solve the problem on the (tiny) CPU in the phone by using vector operations on the CPU. Again, this is a

The Google article specifically says they were able to solve the problem on the (tiny) CPU in the phone by using vector operations on the CPU. Again, this is a tiny doodad for power-starved devices that lack any micro. Have you played with Apple Accelerate? They've been baking this stuff into their chips for quite some time. Apple's FFT outperforms FFTW. https://developer.apple.com/library/mac/navigation/#section=Frameworks&topic=Accelerate https://developer.apple.com/library/mac/navigation/#section=...