NTi Audio XL2 Sound Level Meter - Manual (Page 71)

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FFT Analysis + Tolerance
Select Upper/Lower Reading

The pop-up window Select reading shows up.
Select the integrated averaged reading • EQ. All available se-
lections are Z-weighted (= no weighting).
Confirm with enter • .

The pop-up window Select reading mode shows up.
Select • EQ for normal absolute display of measurements.
Follow the same instruction and select the lower FFT read- •
ing Live.
Press start to measure and display the
sound levels results indicated with ----.