Optical sound - Wikipedia

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Optical fiber - Simple English Wikipedia, the free encyclopedia

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How does optical sound-on-film work? I don't get how a monochrome 2D waveform can reproduce complex polyphonic sound. - Quora

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Classic Optical Sound Recording

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Can sound be used as a carrier for information like electromagnetic radiation is used for transferring data through optical fibers (i.e., the internet)? - Quora

How does optical sound-on-film work? I don't get how a monochrome 2D waveform can reproduce complex polyphonic sound. - Quora

What was the impact of the introduction of long-playing records in 1948? - Quora

Can you show sound waves without using any equipment? - Quora