... -130dB1/1 Octave and 1/3 Octave band filters 1/1 Octave band center frequencies : (9 bands) ... , 500Hz, 1KHz, 2KHz, 4KHz, and 8KHz. 1/3 Octave band center frequencies : (27 bands) 25Hz, 31.5Hz, 40Hz, ... 1KHz, 1.25KHz, 1.6KHz, 2KHz, 2.5KHz, 3.15KHz, 4KHz, 5KHz, 6.3KHz, 8KHz 10KHz.Extension ... sets1/1-octave analysis1024 data sets6140 data sets1/3-octave analysis1024 data sets3070 data setsSignal output AC ...