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Sliding DFT in Java?

I am familiar with JTransforms for performing FFT in Java. I would like to make a series of short Fourier transforms, and I read that a sliding DFT is better for this. Are there any Java libraries that implement efficient sliding DFTs?

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I looked and did not find useful libraries for this. Here is the C code fooobar.com/questions/473399 / ... which I could try translating to java, but I did not find anything already done. In the end, even without a sliding DFT, I was able to make about 1000 FFTs with a width of 2048 per second with JTransforms, which is a lot for me, so I did not try to implement my own sliding DFT.

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