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| | Sound for Film |
 | | Sound track rolls are designated according to the type of sound each contains, i.e., narration, sync sound, sound effects, music, or presence. |
 | | Photographic sound negatives (variable area) are processed to a particular gamma and density to provide minimum cross modulation distortion when printed to a certain positive aim density. |
 | | You must be sure, when ordering photographic sound negatives or positives, that you specify the correct type for the intended use, and that in 16mm, you specify the correct emulsion position, or "wind," to match the wind of the picture material it will be printed with. |
| www.wrslabs.com /filmsound.html (767 words) |
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