Why is TV 29.97 frames per second?
Stand-up Maths · 4 则 HN 推荐
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Matt Parker explains the history behind NTSC television running at 29.97 frames per second rather than 30, tracing it to the backward-compatible addition of color. He walks through the arithmetic behind the odd ratio.
HN 推荐的原因： Go-to explanation whenever the strange 29.97 frame rate comes up, praised for its clarity and presenter.
“definitely go and watch Matt Parker's legendary explanation of why NTSC runs at 29.97fps” 阅读 HN 讨论 ↗