I thought the common way to do it was to take two FFTs really close to each other, one or more samples depending on which frequencies you want the best resolution for, and do phase differencing to work out the frequency. Seems to work pretty well in the little test I just did, and is robust in the presence of additive gaussian noise. Also long as you have at least four cycles of your sine wave in the FFT block you can get to around a cent accuracy, more if you have more cycles.
Cheers, Andy On 27 January 2017 at 19:32, STEFFAN DIEDRICHSEN <sdiedrich...@me.com> wrote: > Here it is from our nuclear friends at CERN: > > https://mgasior.web.cern.ch/mgasior/pap/FFT_resol_note.pdf > > > Steffan > > > > On 26.01.2017|KW4, at 20:01, robert bristow-johnson < > r...@audioimagination.com> wrote: > > i thought Steffan mentioned something about using a Gaussian window. he > mentioned a paper he found but did not identify it. i am a little curious. > > > > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp >
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