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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.

Requirements:

* 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

HugeWave

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8.4
needman

Hi. I have read your project description for about lightning-fast Android implementation of forwrd and inverse FFT for audio, written in RenderScript. I think I can complete these as you want. As you can see my prof More

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8.2
kongxiangjia

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sphinxsolution

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technorizen

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8.2
EliZhang221

Native Android | Java | Android Sdk | Ionic | PHP | [login to view URL] | Node.js | MongoDB | MySQL | iOS | Swift3 | XCode These are my best strong skills. After reading over your application, I’d like to know full detail of More

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7.1
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bondwp322

Hi, I am an experienced programmer and I'm sure I can complete your project asap. Please contact me and tell about your project details. I promise a high quality and punctual work. Thanks. ProjectName:Android: RenderS More

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Smart1902

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YouSheng

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mninfotech2

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shreeyait

[login to view URL] [login to view URL]

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tarekahmed

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beinanli11

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madutzusvm

I have experience in building android renderscript based apps. Feel free to contact me if interested

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developerpR0

Hey, I am bidding only for the Renderscript for the Fourier transform. I have worked previously on app to draw the Amplitude vs time wave of the recorded Audio in PCM array format. I have used the FFT Algorithm to crea More

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5.1
khoddam

I have done similar project for fft and inverse fft in assembly language and I am familiar with it. Writing the code in Java and RenderScript for android is much easier than writing in assembly language. In that pro More

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jexcoreinfotech

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AzzkaNoor

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3.8