Inqaba yokupholisa isithintelo sokugquma isandi singabizwa kwakhona: inqaba yokupholisa isikrini sokugquma isandi, ipleyiti yokupholisa inqaba yokupholisa isandi, inqaba yokupholisa isikrini sokufakwa kwesandi, isithintelo sokupholisa isandi sokupholisa isandi, njl njl. iyunithi yokufunxa isandi, kwaye la malungu alandelayo ziiyunithi zokugquma isandi.Emva kokumisela ngokufanelekileyo ubude kunye nokuphakama kwesithintelo sesandi, ukunciphisa ingxolo ye-10-25dB (A) inokufumaneka.