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Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969)
[ACTIVE]

The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
78, No. 12, pp. 1058–1063
Abstract
In the process of developing a monophonic magnetic sound system, deficiencies and wide variations in auditorium acoustics and loudspeaker characteristics were accentuated. Subjective methods of alignment and correction were found inadequate and time consuming. A method of quantitative measurement and analysis has been evolved and applied to studio re-recording and review rooms. Liaison with member countries of ISO TC 36 has been established and work is proceeding to establish standards to which studio re-recording theaters and cinemas can be aligned. For practical reasons loudspeaker characteristics and theater acoustics must be investigated together. Subjective assessments should be supplemented with measured data giving information on reverberation times, sound pressure levels, and pulse reflection patterns. The methods used to make these tests are described, with a summary of the results obtained from a survey of studio re-recording theaters. To obtain better matching between these, adjustments can often be made by using electrical compensation, but in larger theaters and in the cinema field this may be more difficult, and acoustic correction or redesign may be necessary in the worst cases.
Publication Date
1969-12-01
DOI
10.5594/J10758
ISSN
Print: 0361-4573
Link
https://doi.org/10.5594/J10758
Author(s)
C. G. BuckleAcoustic Consultant, 64 Belmont La., Stanmore, Middlesex, England
A. W. LumkinAssociated British Productions, Ltd., 48 The Rise, Elstree, Herts., England.
Copyright
© 1969 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • Acoustic Considerations in the Film Board Studios [Active]
  • 1. Durst F. Shortt E. J. , “Characteristics of film reproducer systems,” Jour. SMPTE J. Soc. Mot. Pic. Eng. XXXII (Feb. 1939 ) p. 169 . SMPE, 32: 169–187, Feb. 1939. EXTERNAL
  • 2. Mason C. A. Moir J. , “Acoustics of cinema auditoria,” J. Inst. E. E. , 88 : Part III, No. 3 (Sept. 1941 ) p. 175 . EXTERNAL
  • 4. Ljungberg Lennert , “Standardized sound reproduction in cinemas and control rooms,” Jour. SMPTE , 78 : Dec. 1969 . EXTERNAL
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C. G. Buckle and A. W. Lumkin; The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10758
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C. G. Buckle and A. W. Lumkin; The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10758

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C. G. Buckle and A. W. Lumkin; The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10758
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<span class="citation">C. G. Buckle and A. W. Lumkin; <cite>The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters</cite>, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969. Available at <a href="https://doi.org/10.5594/J10758" target="_blank" rel="noopener">https://doi.org/10.5594/J10758</a></span>

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C. G. Buckle and A. W. Lumkin; The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969
doi: 10.5594/J10758
url: https://doi.org/10.5594/J10758
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<li>
C. G. Buckle and A. W. Lumkin; <cite id="bib-10-5594-j10758">The Evaluation and Standardization of the Loudspeaker-Acoustics Link in Motion-Picture Theaters</cite>, Journal of the SMPTE ( Volume: 78, Issue: 12, December 1969); SMPTE, 1969
<span class="doi">10.5594/J10758</span>
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