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1 acoustics laboratory
Engineering: ALУниверсальный русско-английский словарь > acoustics laboratory
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2 акустическая лаборатория
1) General subject: Sound Effects Laboratory2) Engineering: acoustics laboratory3) Metrology: acoustical laboratory, sound laboratoryУниверсальный русско-английский словарь > акустическая лаборатория
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3 Berliner, Emile
SUBJECT AREA: Recording[br]b. 20 May 1851 Hannover, Germanyd. 3 August 1929 Montreal, Canada[br]German (naturalized American) inventor, developer of the disc record and lateral mechanical replay.[br]After arriving in the USA in 1870 and becoming an American citizen, Berliner worked as a dry-goods clerk in Washington, DC, and for a period studied electricity at Cooper Union for the Advancement of Science and Art, New York. He invented an improved microphone and set up his own experimental laboratory in Washington, DC. He developed a microphone for telephone use and sold the rights to the Bell Telephone Company. Subsequently he was put in charge of their laboratory, remaining in that position for eight years. In 1881 Berliner, with his brothers Joseph and Jacob, founded the J.Berliner Telephonfabrik in Hanover, the first factory in Europe specializing in telephone equipment.Inspired by the development work performed by T.A. Edison and in the Volta Laboratory (see C.S. Tainter), he analysed the existing processes for recording and reproducing sound and in 1887 developed a process for transferring lateral undulations scratched in soot into an etched groove that would make a needle and diaphragm vibrate. Using what may be regarded as a combination of the Phonautograph of Léon Scott de Martinville and the photo-engraving suggested by Charles Cros, in May 1887 he thus demonstrated the practicability of the laterally recorded groove. He termed the apparatus "Gramophone". In November 1887 he applied the principle to a glass disc and obtained an inwardly spiralling, modulated groove in copper and zinc. In March 1888 he took the radical step of scratching the lateral vibrations directly onto a rotating zinc disc, the surface of which was protected, and the subsequent etching created the groove. Using well-known principles of printing-plate manufacture, he developed processes for duplication by making a negative mould from which positive copies could be pressed in a thermoplastic compound. Toy gramophones were manufactured in Germany from 1889 and from 1892–3 Berliner manufactured both records and gramophones in the USA. The gramophones were hand-cranked at first, but from 1896 were based on a new design by E.R. Johnson. In 1897–8 Berliner spread his activities to England and Germany, setting up a European pressing plant in the telephone factory in Hanover, and in 1899 a Canadian company was formed. Various court cases over patents removed Berliner from direct running of the reconstructed companies, but he retained a major economic interest in E.R. Johnson's Victor Talking Machine Company. In later years Berliner became interested in aeronautics, in particular the autogiro principle. Applied acoustics was a continued interest, and a tile for controlling the acoustics of large halls was successfully developed in the 1920s.[br]Bibliography16 May 1888, Journal of the Franklin Institute 125 (6) (Lecture of 16 May 1888) (Berliner's early appreciation of his own work).1914, Three Addresses, privately printed (a history of sound recording). US patent no. 372,786 (basic photo-engraving principle).US patent no. 382,790 (scratching and etching).US patent no. 534,543 (hand-cranked gramophone).Further ReadingR.Gelatt, 1977, The Fabulous Phonograph, London: Cassell (a well-researched history of reproducible sound which places Berliner's contribution in its correct perspective). J.R.Smart, 1985, "Emile Berliner and nineteenth-century disc recordings", in WonderfulInventions, ed. Iris Newson, Washington, DC: Library of Congress, pp. 346–59 (provides a reliable account).O.Read and W.L.Welch, 1959, From Tin Foil to Stereo, Indianapolis: Howard W.Sams, pp. 119–35 (provides a vivid account, albeit with less precision).GB-N -
4 Stevens, Stanley Smith
[br]b. 4 November 1906 Ogden, Utah, USAd. 18 January 1973 Cambridge, Massachusetts, USA[br]American psychophysicist, proponent of " Stevens Law" of sensory magnitude, and developer of the technology of hearing and acoustics.[br]Of Mormon origins, Stevens graduated PhD in physiology from Harvard in 1933. After a further fellowship in physiology and a research fellowship in physics, he became an instructor in experimental psychology. At the beginning of the Second World War he founded the PsychoAcoustic Laboratory at Harvard, which grew into the Laboratory of Psychophysics, and in 1962 he became the first Professor of Psychophysics.Originally his research concentrated on sound and communication, but it later enlarged to embrace the whole range of sensory phenomena. It was his earlier studies that established the law relating sensory magnitude to stimulus magnitude. His studies of the loudness scale and its relationship to the decibel scale were significant in the development of the electronic hearing aid.[br]Principal Honours and DistinctionsNational Academy of Sciences 1946. Society of Experimental Psychologists Warren Medal 1943. American Psychological Association Science Award 1960.Bibliography1938, Hearing: Its Psychology and Physiology.Further Reading1951, Handbook of Experimental Psychology.MG -
5 авиационный
1. aviation2. aeronautic3. aeronautical4. aircraftсамолёт-носитель, авиационный носитель — delivery aircraft
5. air; aircraft
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