This octave includes unfiltered and filtered octave around 4:2 and 6:3.
4:2 Octave - M3/M10 test, F3A3 = 6.3 bps, F3A4 = 6.5 bps (3.7% wide)
Unfiltered
Filtered
6:3 Octave - m3/M6 test, A3C4 = 6.2 bps, C4A4 = 6.5 bps (4.9% wide)
Unfiltered
Filtered
Octave
Unfiltered
Filtered 4:2
Filtered 6:3
