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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
Doc Type
Journal Article
Article Type
research-article
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
Link
https://doi.org/10.5594/J00467
Author(s)
V. I. Glazunova, L. G. Tsifrinovich, L. I. Ézrokh
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J00467.json

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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>