1,308
edits
| Welcome to Sprocket School! This project is maintained by volunteer editors. Learn more about how this works. |
Optical soundtrack: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 8: | Line 8: | ||
'''How an Optical Sound Reader Works (the very basics)''' | '''How an Optical Sound Reader Works (the very basics)''' | ||
- As the film runs through the sound head of the projector, light rays from the exciter lamp focus on the optical track through a slit lens. The optical track creates a variance in light, which is absorbed by a solar cell in the sound head and converted to variance in electrical impulses. These impulses are then amplified, sent to the sound processor, then to the speakers where they are converted to sound waves. | - As the film runs through the sound head of the projector, light rays from the exciter lamp focus on the optical track through a slit lens. The optical track creates a variance in light, which is absorbed by a solar cell in the sound head and converted to variance in electrical impulses. These impulses are then amplified, sent to the sound processor, then to the speakers where they are converted to sound waves. Optical sound is the most widely used type of sound reproduction on film prints to this day even with the advent of digital sound. Many 35mm film prints beginning in the 90s will have both an optical track and a digital track. | ||
===Optical Sound Formats=== | ===Optical Sound Formats=== | ||