Standardized Sound Reproduction in Cinemas and Control Rooms

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A given film often sounds different in different cinemas, and different from the way it sounded in the dubbing theater. Strict adherence to some purely electrical response does not insure identical sound in different theaters. Loudspeaker and auditorium properties must also be included. Described here is work done in Sweden during the last four years. A logical division of the theater replay chain in two parts is introduced, enabling a generalized treatment to include also control-room monitoring. Steady-state, filtered-noise measurement methods are described and it is shown that simple octave-filtered noise gives a very appreciable amount of information. Results from a number of cinemas and control rooms are given, together with suggestions for recommended response curves and some notes on beginning international standardization.
Publication Date: 1969-12-01
DOI: 10.5594/J10756
Link: https://doi.org/10.5594/J10756
Author(s): Lennart Ljungberg

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Lennart Ljungberg; Standardized Sound Reproduction in Cinemas and Control Rooms, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10756

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Lennart Ljungberg; Standardized Sound Reproduction in Cinemas and Control Rooms, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10756

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Lennart Ljungberg; Standardized Sound Reproduction in Cinemas and Control Rooms, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10756

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<span class="citation">Lennart Ljungberg; <cite>Standardized Sound Reproduction in Cinemas and Control Rooms</cite>, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at <a href="https://doi.org/10.5594/J10756" target="_blank" rel="noopener">https://doi.org/10.5594/J10756</a></span>

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Lennart Ljungberg; Standardized Sound Reproduction in Cinemas and Control Rooms, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969
doi: 10.5594/J10756
url: https://doi.org/10.5594/J10756

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Lennart Ljungberg; <cite id="bib-10-5594-j10756">Standardized Sound Reproduction in Cinemas and Control Rooms</cite>, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969
<span class="doi">10.5594/J10756</span>
</li>