Reading Speed阅读速度
Reading speed is the maximum rate at which subtitle text can be presented and still be comfortably read by the audience, usually measured in characters per second. In subtitle production, it is a core quality parameter that guides line breaks, display duration, and how much translated dialogue must be condensed; different platforms, content types, and viewer profiles often require different limits.
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Where this term appears
Reading-speed checks occur in subtitle QC and review after translation, often enforced by the client's subtitling convention or QA tool. Translators and editors shorten or rephrase lines that exceed the limit, using editing features that display characters per second and warning flags for out-of-range events, especially for fast dialogue or content aimed at younger or non-native viewers.
Translation checks
A common error is ignoring reading-speed limits during translation and only checking them later. This leads to subtitles that are grammatically complete but too dense; compression done at the last minute may distort meaning or tone, and automated truncation can cut off important information or create abrupt, unreadable line breaks.
Keep the term aligned across your files
Creative and consumer content needs accurate meaning as well as tone and context. Subtitles, interfaces and voice scripts also require checks for timing, character limits and pronunciation.
Provide approved terms and previous translations with the source files. Agree how variants, ambiguous wording and revisions will be reviewed. Terminology maintenance and any termbase handback are confirmed in the project scope. See the 8-step AI + expert workflow.
Related document experience
Kraft Foods
Transcription + dubbingEmployee-training video transcription and dubbing.
Read the published project →
Alexander Wang (Shanghai)
English ⇄ ChineseBrand documentation.
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Include the source and target languages, file types, intended use, deadline and any approved termbase. Agree handling before sending sensitive files. Acknowledged in 4 hours, quoted in 24.
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