The Relative Output of Optical Soundtracks
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.
- Print ISSN
- 0361-4573
- Published
- 1975-09
- Content type
- Original Research
- DOI
- 10.5594/J06886