Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 2, February 1950)

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Noise Considerations in Sound-Recording Transmission Systems

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 54, No. 2, pp. 129–139
Abstract: Noise limitations in sound-recording media are well known. With improved media such as magnetic materials, noise limitations imposed by the recording transmission system require consideration. Noise may be internally generated in the system or may be introduced from extraneous sources by electromagnetic coupling, or circuit exposures to interfering fields. Radio and audio frequency disturbances, crosstalk, thermal noise, shot-effect, microphonics, and alternating current hum are some of the interferences considered.
Publication Date: 1950-02-01
DOI: 10.5594/J11353
ISSN: Print: 0898-042X
Link: https://doi.org/10.5594/J11353
Author(s): F. L. HopperWestern Electric Company, Hollywood, Calif.
Copyright: © 1950 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

(1) Ganz A. G. Laird A. C. , “Improvements in communication transformers,” Bell Sys. Tech. J. , vol. 15 , p. 136 ; January, 1936 . EXTERNAL
(10) Penick D. B. , “The measurement and reduction of microphonic noise in vacuum tubes,” Bell Sys. Tech. J. , vol. 13 , p. 614 ; October, 1934 . EXTERNAL
(11) de Buske J. J. , “Noise measurements in vacuum tubes,” Bell Labs Rec. , p. 456 ; August, 1943 . EXTERNAL
(12) Christensen C. J. Pearson G. L. , “Spontaneous resistance fluctuation in carbon microphones and other granular resistances,” Bell Sys. Tech. J. , vol. 15 , p. 197 ; April, 1936 . EXTERNAL
(13) McNally J. O. , “Analysis and reduction of output disturbances resulting from the alternating-current operation of the heater of indirectly heated cathode triodes,” Proc. I.R.E. , vol. 20 , p. 1263 ; August, 1932 . EXTERNAL
(2) Gustafson W. G. , “Magnetic shielding of transformers at audio frequencies,” vol. 17 , p. 416 ; July, 1938 . EXTERNAL
(3) Levy Samuel , “Electromagnetic shielding effect of an infinite plane conducting sheet placed between circular coaxial coils,” Proc. I.R.E. , vol. 24 , p. 923 ; June, 1936 . EXTERNAL
(4) Lyon Walter , “Experiments on electromagnetic shielding between one and thirty kilocycles,” Proc. I.R.E. , vol. 21 , p. 574 ; April, 1933 . EXTERNAL
(5) Johnson J. B. , “Thermal agitation of electricity in conductors,” Phys. Rev. , vol. 32 , pp. 97 – 109 ; July, 1928 . EXTERNAL
(6) Johnson J. B. Llewellyn F. B. , “Limits to amplification,” Bell Sys. Tech. J. , vol. 14 , p. 85 ; January, 1935 . EXTERNAL
(7) “The theory of the Schroteffekt,” J. Frank. Inst. , vol. 199 , p. 203 ; February, 1925 . EXTERNAL
(8) Llewellyn F. B. , “A study of noise in vacuum tubes and attached circuits,” Proc. I.R.E. , vol. 18 , pp. 243 – 265 ; February, 1930 . EXTERNAL
(9) Pearson G. L. , “Fluctuation noise in vacuum tubes,” Bell Sys. Tech. J. , vol. 13 , p. 634 ; October, 1934 . EXTERNAL

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F. L. Hopper; Noise Considerations in Sound-Recording Transmission Systems, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 2, February 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J11353

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F. L. Hopper; Noise Considerations in Sound-Recording Transmission Systems, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 2, February 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J11353

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<span class="citation">F. L. Hopper; <cite>Noise Considerations in Sound-Recording Transmission Systems</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 2, February 1950); SMPTE, 1950. Available at <a href="https://doi.org/10.5594/J11353" target="_blank" rel="noopener">https://doi.org/10.5594/J11353</a></span>

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F. L. Hopper; <cite id="bib-10-5594-j11353">Noise Considerations in Sound-Recording Transmission Systems</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 2, February 1950); SMPTE, 1950
<span class="doi">10.5594/J11353</span>
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