Active

Sets the selected barriers to active. Only active barriers are included in noise calculations.

Find it here:

MOUS_ICO Menu: Noise > Barriers > Active

or

MOUS_ICO Menu: Noise > Barriers > Dialog box

MOUS_ICO Select one or multiple barriers in the list

MOUS_ICO Dialog box: Active

or

nco: Select a barrier (defined in Novapoint Noise)

MOUS_ICO Popup menu: Active

Next topic: Barriers