We take sound for granted and, in the course of our daily experience, we receive millions signals of auditory information. Animals have long associated the repetitions of certain sounds as information. The danger signal from birds to primates is recognized as an important language of warning sounds in loud repetition. The specific type of sound must elicit a specific and learned reaction in animals if they are to continue to survive. Therefore, language evolves, even in the lowest class of animals, when sound is associated with danger and turf defense.
Basic language becomes a life or death issue as living creatures interact within their environment.
If the motion is regular, it is described as periodic and the resulting sound is musical. If the motion is irregular, it is considered aperiodic and the result is classified as noise. We learn early in life that it is important to be heard and understood so that our needs may be satisfied. Basic communication even through the employment of satellites and millions of miles of cable, is still a matter of raising the volume and doing what is necessary to be understood. All the expensive acoustic improvements and telecommunications innovations will not make up for the inability to understand participants.