Android: RenderScript Fast Fourier Transform

We want a lightning-fast Android implementation of forward and inverse FFT (Fast Fourier Transform) for audio, written in RenderScript.


* It must behave the same way as the FFTW real-data DFT: [login to view URL]

* The forward FFT must take real inputs and produce complex outputs

* The inverse FFT must accept complex inputs and produce real outputs (you can assume the inputs will be such that the output will have no complex components)

* It must be written in RenderScript to run on an Android device

* The inputs are a window of 2048 audio samples, expressed as PCM floating-point numbers

* It must be fast enough to comfortably process real-time audio, i.e. a forward and inverse transform should take on the order of a millisecond

* Bonus: it should be possible to run with different precisions: half, single and double-precision floating-point numbers

Skills: Android, Mathematics, Software Development

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About the Employer:
( 0 reviews ) Sweden

Project ID: #16113973

24 freelancers are bidding on average $1234 for this job


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