>> ok, do you know how to compute that or should i explain it ? Explanation will help. Is there any function in FFmpeg to get absolute value of FFT? and how to get frequency data?
On Fri, Nov 4, 2016 at 11:04 PM, Michael Niedermayer <mich...@niedermayer.cc > wrote: > On Fri, Nov 04, 2016 at 09:01:22PM +0530, Pallavi Kumari wrote: > > >> The frequency components after a R->C FFT are complex numbers > > >> the peak values of complex numbers are not the same as the maxima of > > >> their real components > > >> did the paper this is based on say anything about what is recommanded > > >> to take here for the maxima? > > > > >> It would seem logic to me to take the magnitude of the complex numbers > > >> instead of the real components individually, but that may or may not > > >> be what the paper meant > > >> not that we have to do what the paper says, we can in fact do > something > > >> entirely different if it works better > > > > We need points who have high peak intensity(amplitude). Hence, we require > > amplitude value at frequency points (say x-axis is freq and y is > > amplitude.) so, I guess taking magnitude of complex numbers is logical. > > That's how people are using. > > ok, do you know how to compute that or should i explain it ? > > [...] > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > What does censorship reveal? It reveals fear. -- Julian Assange > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
