Lip Sync唇形同步
Lip sync is the process of aligning dubbed dialogue with the mouth movements, timing, and emotional delivery of the original on-screen speaker. In audiovisual localization, it requires careful script adaptation because translators must balance semantic accuracy with phonetic and rhythmic constraints, paying attention to open vowels, bilabial sounds, and pauses, so the replacement speech feels natural rather than mechanically fitted to picture.
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Where this term appears
Lip sync is central to dubbing workflows for animation, film, and game cutscenes. After translation, adapters or directors create a dub script that marks timing and phonetic cues; voice talents then record while audio engineers and reviewers check sync against the picture, requesting retakes whenever mouth movements, pauses, or emotional emphasis fall out of alignment.
Translation checks
A frequent mistake is matching only syllable count and ignoring mouth shapes. A line with the same number of syllables may still land on the wrong facial expression, especially for open vowels or consonant-heavy clusters; this makes the dub feel off even when duration is correct and often forces retakes or dialogue rewrites.
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.
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Related document experience
Kraft Foods
Transcription + dubbingEmployee-training video transcription and dubbing.
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Alexander Wang (Shanghai)
English ⇄ ChineseBrand documentation.
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