Sliding DFT in Java?

Question

I'm familiar with JTransforms for doing FFTs in Java. I would like to do a series of short time Fourier transforms, and I've read that a sliding DFT is better for that. Are there any Java libraries that implement efficient sliding DFTs?

score 3 · Accepted Answer · edited May 23 '17 at 10:30

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I looked and couldn't find any good libraries to do this. There is some C code here on stackoverflow that I could try to translate to java, but I didn't find anything already done. In the end, even without a sliding DFT I was able to do around 1000 FFTs of width 2048 per second with JTransforms, which is plenty for my needs, so I didn't bother trying to implement my own sliding DFT.

edited May 23 '17 at 10:30

Community

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answered Jan 08 '13 at 15:56

mattg

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Still it's quite a shame there is no sliding FFT in something like apache commons. – Kolya Ivankov Jan 24 '18 at 10:33

Sliding DFT in Java?

1 Answers1