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| The latest version of Aurora is only 1/1 octave bands. However we have some old versions with were working in 1/3 octave bands, and which you can download from the Aurora web site. We abandoned this, because the usage of 1/3 octave bands requires much longer averaging times, and in general produces larger errors. Better to have a smaller number of spectral bands with accurate results, than many more spectral bands containing values with larger uncertainty...
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