2.1.12. IIR contour type

The IIR contour type combo-box allows you to change the LUFS loudness type’s IIR filter contour. The following contours are supported:

• K-weighting
• ECMA-418
• ITU-R 468
• A-weighting
• C-weighting

Contours other than K-weighting no longer conform to the LUFS standard, but are provided for flavor and perceptual precision.