Inzitizi yo gukonjesha umunara urashobora kandi kwitwa: gukonjesha umunara wogukoresha amajwi, gukonjesha umunara wogusohora amajwi, gukonjesha umunara ukurura amajwi, gukonjesha umunara amajwi yo gukumira, nibindi. igice cyo kwinjiza amajwi, nibice bikurikira nibice byerekana amajwi.Nyuma yo kumenya neza uburebure n'uburebure bwa bariyeri y'amajwi, urashobora kugabanya urusaku rwa 10-25dB (A).