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SMPTE Journal ( Volume: 89, Issue: 7, July 1980)
[ACTIVE]

Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
89, No. 7, pp. 525–527
Abstract
A quick-response light-modulating device would be useful for extending the frequency range possible in recording variable-area soundtracks. A laser light-modulating device based on a new principle has been constructed. The deflection angle of the laser beam is kept constant, independent of the level of the recorded sound signal; the variable-area soundtrack is produced by an optical shutter controlled by pulse-width-modulated signals. The block diagram and optical scheme of the device are given and its operation is explained. A laboratory unit is described and a recording obtained experimentally is illustrated. Several advantages of the new device are indicated.
Publication Date
1980-07-01
DOI
10.5594/J00467
ISSN
Print: 0036-1682
Link
https://doi.org/10.5594/J00467
Author(s)
V. I. GlazunovaCentral Design Office of the Scientific-Industrial Union “Ekran” in Moscow, USSR.
L. G. TsifrinovichCentral Design Office of the Scientific-Industrial Union “Ekran” in Moscow, USSR.
L. I. ÉzrokhCentral Design Office of the Scientific-Industrial Union “Ekran” in Moscow, USSR.
Copyright
© 1980 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Cherkasov Yu. P. Bolotnikov I. M. , “Methods for Improving Sound Reproduction in Motion Picture Theaters,” Summaries of Proc. of IVth All-Union Scientific-Technical Conf., “Sound in Film and the Sound Technology of Cinematography,” Moscow , NIKFI , 1978 , pp. 13 – 15 . EXTERNAL
  • 2. Burgov V. A. , “Quality of Photographic Soundtracks of Release Prints,” Tekhn. Kino i Televid. , 27–29 , No. 1 , 1977 . EXTERNAL
  • 3. Burgov V. A. Usachev N. N. , “Quality of Photographic Soundtracks of Release Prints,” Summaries of Proc. of IVth All-Union Scientific-Technical Conf., “Sound in Film and the Sound Technology of Cinematography,” Moscow , NIKFI , 1978 , p. 16 . EXTERNAL
  • 4. Burgov V. A. , Fundamentals of Recording and Reproduction of Sound , Moscow , Iskusstvo , 1954 , pp. 237 – 242 . EXTERNAL
  • 5. Tsifrinovich L. G. , Device for Optical Recording of Soundtracks , Author's Certificate No. 654954, Bulletin of Inventions, 1979 , No. 12. EXTERNAL
  • 6. Pasquier D. , “Les Amplificateurs Classe D,” Toute l'Electronique , 31–36 , No. 3 , 1968 ; 82 – 85 , No. 323. EXTERNAL
  • 7. Rebrin Yu. K. , Control by an Optical Beam in Space , Moscow , Sovetskoe Radio , 1977 , pp. 203 – 218 . EXTERNAL
  • 8. Burgov V. A. , “Prospects for the Development of the Production Base of Motion Pictures,” Tekhn. Kino i Televid. , 70–72 , No. 11 , 1978 . EXTERNAL
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V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980. Available at https://doi.org/10.5594/J00467
Snippet:
V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980. Available at https://doi.org/10.5594/J00467

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V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980. Available at https://doi.org/10.5594/J00467
Snippet:
<span class="citation">V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; <cite>Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device</cite>, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980. Available at <a href="https://doi.org/10.5594/J00467" target="_blank" rel="noopener">https://doi.org/10.5594/J00467</a></span>

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Preview:
V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980
doi: 10.5594/J00467
url: https://doi.org/10.5594/J00467
Snippet:
<li>
V. I. Glazunova, L. G. Tsifrinovich, and L. I. Ézrokh; <cite id="bib-10-5594-j00467">Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device</cite>, SMPTE Journal ( Volume: 89, Issue: 7, July 1980); SMPTE, 1980
<span class="doi">10.5594/J00467</span>
</li>

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