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See all articles from Popular Electronics. Electronics for Tomorrow
The "Music Synthesizer" is an elaborate device that generates any tone produced by the human voice or musical instruments, as well as tones beyond the capabilities of these sources, including tones never heard before. Capable of solo or ensemble effects, it is expected to open new horizons for composers who could take advantage of its almost limitless possibilities. Another use of the synthesizer could be in phonograph record production. Since the unit can produce any sound imaginable, it may be used to rejuvenate old pressings into new records with full tonal range and complete freedom from noise and distortion. In addition, the synthesizer can provide remarkably authentic renditions of older music since it can produce accurately the tones of the old instruments for which many great composers wrote. For music lovers, scholars, and historians, this feature should prove of great value. Research and development of the synthesizer is under the direction of Dr. Harry F. Olsen, Director of Acoustical and Electromechanical Research at RCA's David Sarnoff Research Center, Princeton, N.J.
Electronic light and its amplification have potential applications in other fields such as radar and x-ray work, but details on these are not yet available. Heralded as a major step into a new era of "electronic photography" is RCA's new TV tape recorder, now installed for field tests at the National Broadcasting Company. Both color and black-and-white telecasts can be recorded on tape, and an unlimited number of copies made quickly and cheaply. Ultimate uses of this device are forecast in the motion picture industry which could use the process to make movies without any photographic developing. Pictures can be viewed the instant they are taken. The new device will also aid telecasting, education, and industry in general, to say nothing of its tremendous potential for home use. TV tape recorders are expected to become as widely used as sound tape recorders. The fourth electronic wonder at hand is an air conditioner that works without any moving parts, motors, or compressors - a completely noiseless machine. Prototype of this development is a small electronic refrigerator in which cooling is achieved by the so-called "Peltier effect" in which current through two dissimilar materials produces a cooling effect in the region of the junction, like a kind of reverse thermocouple effect. The problem here is largely one of researching the right materials to do the job. Posted October 15, 2013 | |||||||||
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