Quality Control of 16mm Variable-Area Soundtracks for Small Studios

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 73, No. 9, pp. 792–796
Abstract: Procedures followed in the past have been inadequate for assuring an acceptable quality of sound. This paper deals particularly with the 16mm track which has greater need for sound quality control because of the narrower tolerances and the higher amount of image spread. It has been found that using a 6,000-cycle cross-modulation test gives more accurate control than the conventional 4,000-cycle signal. Commercial negative and print tolerances tend to produce some prints with unacceptable sound quality, so a simple additional control is recommended. This method uses a short, one-shot cross-modulation test on the negative and a simple cross-modulation distortion meter for analyzing the print. The meter has been designed to be economical to build, requires no power supply and can be used by operators with no special training. It indicates both amount and direction of density correction necessary to obtain optimum results. Using a single cross-modulation negative and the meter, a laboratory can improve the quality of its continuous printers and can establish the necessary print density variation from printer to printer to obtain the same cancellation.
Publication Date: 1964-09-01
DOI: 10.5594/J07182
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J07182
Author(s): Gordon WilliamsWalt Disney Productions, 2400 West Alameda Ave., Burbank, Calif. 91505
Michael StrongWorld Wide Pictures, 2520 W. Olive Ave., Burbank, Calif. 91505
Copyright: © 1964 Society of Motion Picture and Television Engineers, Inc.

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Gordon Williams and Michael Strong; Quality Control of 16mm Variable-Area Soundtracks for Small Studios, Journal of the SMPTE 73(9): 792-796; September 1964; SMPTE, 1964. Available at https://doi.org/10.5594/J07182

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Gordon Williams and Michael Strong; Quality Control of 16mm Variable-Area Soundtracks for Small Studios, Journal of the SMPTE 73(9): 792-796; September 1964; SMPTE, 1964. Available at https://doi.org/10.5594/J07182

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<span class="citation">Gordon Williams and Michael Strong; <cite>Quality Control of 16mm Variable-Area Soundtracks for Small Studios</cite>, Journal of the SMPTE 73(9): 792-796; September 1964; SMPTE, 1964. Available at <a href="https://doi.org/10.5594/J07182" target="_blank" rel="noopener">https://doi.org/10.5594/J07182</a></span>

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Gordon Williams and Michael Strong; Quality Control of 16mm Variable-Area Soundtracks for Small Studios, Journal of the SMPTE 73(9): 792-796; September 1964; SMPTE, 1964
doi: 10.5594/J07182
url: https://doi.org/10.5594/J07182

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<li>
Gordon Williams and Michael Strong; <cite id="bib-10-5594-j07182">Quality Control of 16mm Variable-Area Soundtracks for Small Studios</cite>, Journal of the SMPTE 73(9): 792-796; September 1964; SMPTE, 1964
<span class="doi">10.5594/J07182</span>
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Referenced By

The Optimum Carrier Frequency for Cross-Modulation Tests [Active]
SMPTE RP 104:2005 [Active, Stabilized]