Billede:35mm film with digital soundtrack.jpg
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35mm_film_with_digital_soundtrack.jpg (287 × 384 pixel, file size: 32 KB, MIME type: image/jpeg)
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Simulated 35mm film with soundtracks - The outermost strips (on either side) contain the SDDS soundtrack as an image of a digital signal (on actual film the dots which make up the digital signal are much finer). In from them are the perforations used to drive the film through the projector, along with the Dolby Digital soundtrack between them. On the right side (when looking towards the screen) only the two tracks of analog soundtrack can be seen, often encoded using Dolby Surround to simulate a third track. Just in from the analog track is the timecode used to synchronize a DTS soundtrack. Finally, in the center, is the image, in this case compressed horizontally by Cinemascope.
Note: the image was mirrored compared to the original picture
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