Communication as a process can be understood from the given diagram. A sender encodes the message, and sends it using a channel to a receiver, who then decodes the message. The receiver, in turn, encodes his feedback on the message received, and sends it to the sender, which is then decoded by the sender. Different channels or media is used for this transmission of message. Noise, in the communication process, refers to any obstruction that hampers the transmission of the message from the sender to the receiver or the feedback from the receiver to the sender. Noise here can refer to both the verbal and non-verbal cues, oral and written communication etc. For instance, language barriers, misinterpretation of symbols used, incoherent diction and articulation, unintelligible handwriting etc.
