Re: Real-data DFT in Octave

[peter]

> >> https://linuxcounter.net/user/206392.html
> Yes. And for real input it is exacly the same but cojugated. FFTW claims
> that it can improve performance by taking advantage of this property:
> http://www.fftw.org/fftw3_doc/One_002dDimensional-DFTs-of-Real-Data.html#One_002dDimensional-DFTs-of-Real-Data
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LTFAT contains a real-valued input FFT called "fftreal" and also the
inverse "ifftreal"

http://ltfat.sourceforge.net/doc/fourier/fftreal.php

If you compile the toolbox, there is a native Octave interface that calls
FFTW.

Cheers,
Peter.