时间码换算
UpBox优盒工具箱,免费在线时间码换算:按 23.976 到 60 帧的帧率,在 HH:MM:SS:FF 时间码、总帧号与秒数之间双向换算,做字幕轴与切片点时不用口算。
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帧率与输入Input
帧率(fps)
已换算
时间码按「时:分:秒:帧」书写,也接受「分:秒:帧」与「秒:帧」两种缩写;23.976 与 29.97 按非丢帧计算,和真实素材会有几分钟级的偏差
换算结果Result
总帧数Total frames
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对应时长Duration
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帧号对应时间码Frame to timecode
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常用时长帧数
剪辑软件里显示的时长和这里的秒数基本一致,差在最后一帧取整;做字幕轴、切片点时用帧号比用秒数稳,因为帧号是整数不会累积误差
本工具所有运算在本地浏览器完成,你的文件、文本不会上传到服务器
工具介绍
剪辑时说「从第 2250 帧切」,字幕软件却只认 00:01:30:00,两个数之间来回换很容易错一帧。 An editor says cut at frame 2250 while the subtitle tool only takes 00:01:30:00, and converting between them invites off-by-one errors.
这里按帧率双向换算:时间码出总帧数与秒数,帧号出时间码,同一页面对齐。 This converts both ways at your frame rate: timecode gives total frames and seconds, a frame number gives timecode, all on one page.
- 七档帧率Seven rates
- 双向换算Both directions
- 时长格式化Formatted duration
- 缩写输入Short forms
使用说明
- 选帧率。Pick a frame rate.
- 填时间码。Enter timecode.
- 填帧号。Enter a frame number.
- 读三项结果。Read all three results.
常见问题
23.976 和 24 有什么区别?What is the difference between 23.976 and 24?
23.976 是 24 帧的 NTSC 修正值,实际每秒少约 0.024 帧,长片会累积出秒级差异。23.976 is the NTSC-adjusted 24, running about 0.024 frames short per second, which adds up to seconds over a feature.
丢帧时间码为什么没处理?Why is drop-frame timecode skipped?
丢帧不是丢画面而是跳编号,实现要按每分钟跳两帧,本页统一按非丢帧算,标了提醒。Drop frame skips numbers rather than pictures, jumping two counts a minute; this page stays non-drop and says so.
帧号从 0 还是 1 开始?Does frame numbering start at zero?
按 0 起算,和大多数剪辑软件的时间线一致;有的场记单从 1 起,对不上就差一帧。It starts at zero, matching most timelines, while some camera sheets start at one and differ by a frame.
能算音频采样点吗?Can it convert audio samples?
不能,采样点按 44.1k 或 48k 计,和帧率不是一套单位。No, samples follow 44.1 or 48 kHz and are a different unit entirely.