Wit suara makadi ciren gumi miwah wenten taler pakaryan manusa (makadi nyelapang utawi nenten nyelapang) ngawit ngeranayang kualitas signal sane kawedar saking pangwedar sane katerima olih siki utawi lintang sane mirengang.
Noise sources such as natural forces and in some cases human activity (both intentional and accidental) begin influencing the quality of signals propagating from the sender to one or more receivers.