Re: Real-data DFT in Octave

[Macy]

Easy to go back and forth. But don't forget to throw away the imaginary part 
when you go back to the REAL TIME functions. Round off errors add strange 
artifacts.

--- address@hidden wrote:

From: Torbjörn Rathsman <address@hidden>
To: address@hidden
Subject: Real-data DFT in Octave
Date: Sat, 06 Oct 2012 15:18:08 +0200

Is it possible to without much effort call the real to complex dft 
routins from octave. It is easier to manipulate the spectrum that way, 
since i am guarantied that the mirror part becomes correct. The purpose 
in this case is to compute filtered derivative of second order.
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