Indicates that the A-weighted power from bands [50 Hz to 315 Hz] + 6.3 kHz is larger than the A-weighted power for bands 400 Hz to 5 kHz.
The uncertainty for total A is then invalid, and individual band uncertainties apply.
Low mid-range power Low mid-range powerIndicates that the A-weighted power from bands [50 Hz to 315 Hz] + 6.3 kHz is larger than the A-weighted power for bands 400 Hz to 5 kHz.
The uncertainty for total A is then invalid, and individual band uncertainties apply.