Sound waves and radio waves Sound Waves Communication by sound uses our senses of hearing. When sound is produced, the air about it is set into vibration. These vibrations are called sound waves. When sound waves strike the ear of person, the eardrum too, will vibrate the same way. In tum, auditory nerves will send the signal to the brain. communication Different means of producing sound will produce different sounds depending upon the number of vibrations that the wave makes per second.