The communication process is In a dyadic, or two-person, communication situation, the receiver is the other person involved. In a public speaking or public communication situation, the audience is made up of receivers. Components of the communication process include a sender, encoding of a message, selecting of a channel of communication, receipt of the message by the receiver and decoding of the message. The numbers can vary from a few to a few hundred. The speaker may use only his/her voice or may need a public address system.