The Relative Output of Optical Soundtracks

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The density dependence of the relative output of optical soundtracks, first described by J. A. Maurer, is reviewed. A graph shows the levels of constant relative output vs track densities. A nomograph also relates relative output to track densities. Both the graph and the nomograph are particularly heuristic and useful in understanding the effect the track densities have on relative output. The basic relationship between the densities and the relative output holds for both variable-area and variable-density tracks and for any modulating medium. The method is general and the particular film stock used is not a factor in the way the graph and nomograph are applied. By comparing the relative outputs corresponding to two different density conditions, the resulting change in output can be noted; this is especially useful for soundtrack quality control. Finally, three application examples are given.
Publication Date: 1975-09-01
DOI: 10.5594/J06886
Link: https://doi.org/10.5594/J06886
Author(s): J. Dexter Clifford, Joseph J. Charles

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J. Dexter Clifford and Joseph J. Charles; The Relative Output of Optical Soundtracks, Journal of the SMPTE ( Volume: 84, Issue: 9, September 1975); SMPTE, 1975. Available at https://doi.org/10.5594/J06886

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J. Dexter Clifford and Joseph J. Charles; The Relative Output of Optical Soundtracks, Journal of the SMPTE ( Volume: 84, Issue: 9, September 1975); SMPTE, 1975. Available at https://doi.org/10.5594/J06886

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<span class="citation">J. Dexter Clifford and Joseph J. Charles; <cite>The Relative Output of Optical Soundtracks</cite>, Journal of the SMPTE ( Volume: 84, Issue: 9, September 1975); SMPTE, 1975. Available at <a href="https://doi.org/10.5594/J06886" target="_blank" rel="noopener">https://doi.org/10.5594/J06886</a></span>

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J. Dexter Clifford and Joseph J. Charles; The Relative Output of Optical Soundtracks, Journal of the SMPTE ( Volume: 84, Issue: 9, September 1975); SMPTE, 1975
doi: 10.5594/J06886
url: https://doi.org/10.5594/J06886

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J. Dexter Clifford and Joseph J. Charles; <cite id="bib-10-5594-j06886">The Relative Output of Optical Soundtracks</cite>, Journal of the SMPTE ( Volume: 84, Issue: 9, September 1975); SMPTE, 1975
<span class="doi">10.5594/J06886</span>
</li>