MOTION MOVES SOUND
Based on a Technical Talk
Presented at Ausgraph '90, Melbourne, Australia |
Machine Motions HumanThe process of hearing occurs in the human brain rather than the ear itself, and the hearing mechanism of the inner ear actually translates the vibration of sound into a neurological signal, so the brain, rather than interpret sound as fluctuations of air pressure, interprets sound as a mixture of pure tones over a spectrum of frequencies [Bateman, Wayne A. Wiley, INTRODUCTION TO COMPUTER MUSIC]; thus, Herman von Helmholtz described the ear as a frequency analyzer. In his book, TUNING THE HUMAN INSTRUMENT, Steven Halpern discusses the study of cymatics a term introduced by Dr. Hans Jenny, who coined the word which refers to the study of the interrelationship of waveforms with matter by rendering vibrations into physical forms. Jenny was influenced by a German physicist who set up anexperiment whereby he scattered sand on steel disks and observed changing patterns produced by playing notes on a violin. [Halpern, TUNING THE HUMAN INSTRUMENT] He took these experiments a bit farther and covered the disks with liquids, metal filings and powders. He controlled vibrations of the violin's bow by using a crystal with a wide spectral bandwidth. A variety of organic shapes appeared as the pitch ascended the musical scale. Jenny's theory was that the patterns occurred because, as symbols, they represent an underlying order of the physical universe and the human consciousness. For this reason, he felt these symbols would be links to the vibratory signals which connect us with the harmony of the spheres. [Halpern, TUNING THE HUMAN INSTRUMENT. IN THE REALM OF FOURIERMotion moves sound, the vibrational frequency that occurs as air molecules are disturbed. The movement of mass is directly proportional to the energy exerted on the mass. Like vibrational signals respond to like vibrational signals existing in all space, once matched, multiplying the overall frequency range of the vibratory signal. This phenomena is described as rhythm entrainment. Since an important aspect of sound is communication, in order for information to be communicated effectively, high definition 3D binaural or transaural sound must be produced which will benefit the human body. In order to
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