Acoustic Design Factors for Wide-Screen Theaters

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The specific capacity of 125 cu ft/spectator recommended for 35mm film theaters seating up to 900 persons has to be increased by almost 300% for 70mm film theaters that have larger screens and aspect ratios of projected picture. The audience- participation-inviting effects of Cinerama, Todd-AO, Ultrapanavision, etc., require not only outsize screens, but utilization of central seating areas, to avoid optical distortion as well as delayed sound reflections. Extreme lateral seating in an auditorium makes correct sound-source localization difficult (getting the sound source to come from directly behind the picture image), which ha8 led to the adoption of continental seating arrangements in new theaters: the space along the sidewalls is used for aisles. Other improvements are discussed, such as a 5-in rise per seat row spaced 40 in. back-to-back, and the application of sound absorbent treatment on the lower portions of the sidewalls to prevent delayed reflections.
Publication Date: 1968-09-01
DOI: 10.5594/J16728
Link: https://doi.org/10.5594/J16728
Author(s): Michael Rettinger

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Michael Rettinger; Acoustic Design Factors for Wide-Screen Theaters, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J16728

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Michael Rettinger; Acoustic Design Factors for Wide-Screen Theaters, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J16728

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Michael Rettinger; Acoustic Design Factors for Wide-Screen Theaters, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J16728

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<span class="citation">Michael Rettinger; <cite>Acoustic Design Factors for Wide-Screen Theaters</cite>, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968. Available at <a href="https://doi.org/10.5594/J16728" target="_blank" rel="noopener">https://doi.org/10.5594/J16728</a></span>

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Michael Rettinger; Acoustic Design Factors for Wide-Screen Theaters, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968
doi: 10.5594/J16728
url: https://doi.org/10.5594/J16728

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Michael Rettinger; <cite id="bib-10-5594-j16728">Acoustic Design Factors for Wide-Screen Theaters</cite>, Journal of the SMPTE ( Volume: 77, Issue: 9, September 1968); SMPTE, 1968
<span class="doi">10.5594/J16728</span>
</li>