Frequency Response for 16mm Magnetic Sound: A Survey of Test Films

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: In the development of 16mm magnetic recording, both as a stripe on motion-picture film and as a soundtrack on magnetic film, different techniques in frequency equalization have evolved and different proposals for standardization have been advanced. In practice the differences are observed to be such that rerecording is frequently necessary, and program interchangeability has been hampered. As an essential prerequisite to evaluation of the compromise proposals that have been advanced, a few representative test films have been examined in order to have actual data on how the existing standards are being interpreted, and how closely actual practice adheres to the applicable documents. The range of equalization curves measured on these 16mm test films is sufficiently large that a move toward an acceptable compromise is desirable. Inasmuch as efficient recording media in 16mm format are readily available and there is always the incentive to permit the best possible overall system performance, a 50-μs high frequency aim is proposed for efficient loading of the magnetic medium.
Publication Date: 1971-01-01
DOI: 10.5594/J13541
Link: https://doi.org/10.5594/J13541
Author(s): F. J. Kolb, D. L. Carr

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F. J. Kolb and D. L. Carr; Frequency Response for 16mm Magnetic Sound: A Survey of Test Films, Journal of the SMPTE ( Volume: 80, Issue: 1, January 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J13541

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F. J. Kolb and D. L. Carr; Frequency Response for 16mm Magnetic Sound: A Survey of Test Films, Journal of the SMPTE ( Volume: 80, Issue: 1, January 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J13541

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<span class="citation">F. J. Kolb and D. L. Carr; <cite>Frequency Response for 16mm Magnetic Sound: A Survey of Test Films</cite>, Journal of the SMPTE ( Volume: 80, Issue: 1, January 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J13541" target="_blank" rel="noopener">https://doi.org/10.5594/J13541</a></span>

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F. J. Kolb and D. L. Carr; Frequency Response for 16mm Magnetic Sound: A Survey of Test Films, Journal of the SMPTE ( Volume: 80, Issue: 1, January 1971); SMPTE, 1971
doi: 10.5594/J13541
url: https://doi.org/10.5594/J13541

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<li>
F. J. Kolb and D. L. Carr; <cite id="bib-10-5594-j13541">Frequency Response for 16mm Magnetic Sound: A Survey of Test Films</cite>, Journal of the SMPTE ( Volume: 80, Issue: 1, January 1971); SMPTE, 1971
<span class="doi">10.5594/J13541</span>
</li>