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How Video Works by Marcus Weise, Diana Weynand

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CHAPTER 19

Audio for Video

Human perception and learning is 90% visual. This creates a greater tolerance in the range of acceptability in visual images. Because audio comprises a much smaller percentage of human information gathering, even a small audio discrepancy will translate into a much greater perceptible difference. Even so, audio was always thought of as less important than video.

People are more critical of what they hear than what they see. It has been found through experimentation and research that people will watch poor-quality images if the audio is good. On the other hand, the audience will not tolerate poor audio because it is more of a strain to make sense of the content. If audio is out of sync by one frame, one thirtieth of ...

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