FFT length

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This topic contains 1 reply, has 2 voices, and was last updated by  Martin Klang 4 months, 3 weeks ago.

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  • #2990

    Harbinger
    Participant

    I’m interested in trying out the OWL package. I think it was mentioned that the DSP can perform 3000 operations per sample. How does that translate into how often one can perform a 2 channel FFT?

    If the length of the FFT is 1024 samples, how often can a stereo FFT/IFFT pair be performed? Once every 64 samples for example? Has anyone tested the limits?

    #2991

    Martin Klang
    Keymaster

    I’ve mostly done FFT and IFFT patches where the window size equals blocksize, e.g. 1024 wide FFT every 1024 samples. The problem with these is that they only work well on high blocksize, so I’ve not published any (yet).

    Would be great to have a minimal overlap-add FFT / IFFT patch to experiment with, for creating frequency domain patches.

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