An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The final soundtrack master of a motion picture, when heard in the studios dubbing room, ideally represents the quality of sound that should be reproduced in the theater. Unfortunately there has been no standard of theater performance that could be objectively implemented. The methods that have been employed are subjective. Within the last few years an acoustic response technique has been developed employing a pink noise input and a measurement of the resultant sound pressure levels in the auditorium. This objective method permits the adjustment of a theater's reproducing system to match that of the dubbing room to within an acceptable tolerance. Measurements of Hollywood dubbing rooms and review rooms and of the Academy Award theater have established an acoustic response curve for dubbing rooms and for theaters. These curves have been submitted to the SMPTE for consideration as American standards. In view of similar work going on in other countries, the acoustic response of dubbing rooms and theaters is being considered by the International Standards Organization (ISO) for international standardization.
Publication Date: 1975-01-01
DOI: 10.5594/J13420
Link: https://doi.org/10.5594/J13420
Author(s): Petro Vlahos

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Petro Vlahos; An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms, Journal of the SMPTE ( Volume: 84, Issue: 1, January 1975); SMPTE, 1975. Available at https://doi.org/10.5594/J13420

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Petro Vlahos; An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms, Journal of the SMPTE ( Volume: 84, Issue: 1, January 1975); SMPTE, 1975. Available at https://doi.org/10.5594/J13420

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<span class="citation">Petro Vlahos; <cite>An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms</cite>, Journal of the SMPTE ( Volume: 84, Issue: 1, January 1975); SMPTE, 1975. Available at <a href="https://doi.org/10.5594/J13420" target="_blank" rel="noopener">https://doi.org/10.5594/J13420</a></span>

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Petro Vlahos; An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms, Journal of the SMPTE ( Volume: 84, Issue: 1, January 1975); SMPTE, 1975
doi: 10.5594/J13420
url: https://doi.org/10.5594/J13420

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<li>
Petro Vlahos; <cite id="bib-10-5594-j13420">An Optical/Acoustic Response Standard for Theaters and Its Correlation to Dubbing Rooms</cite>, Journal of the SMPTE ( Volume: 84, Issue: 1, January 1975); SMPTE, 1975
<span class="doi">10.5594/J13420</span>
</li>