Chii chinonzi DBU?
dBu uye dBV ndiwo madhibheri chaiwo ekuyera voltage. Kusiyana ne dB, iwo chaiwo mayuniti nekuti anogona kushandurwa kuita chaiyo voltage kukosha. dBu ndeye dB inoenderana ne0.775 volts; yakadai kuti 0dBu = 0.775 volts.