Z application of quieter materials ̌ such as rubber liners in bins, conveyors, and vibrators;Z active noise reduction (`anti-noise'), in certain circum-stances;Z carrying out preventive maintenance: as parts become worn, noise levels can change.
Z"vaimentavien materiaalien kêyttû, kuten kumiliuskat syûttû-rênneissê, kuljetushihnoissa ja t ê r y t t i m i s s ê Z" a k t i i v i n e n melun vaimennus (•vastamelu•) joissain t i l a n t e i s - s a Z" e n n a l t a e h k ê i s e v ê huolto: melutasot voivat muuttua, kun osat kuluvat.