A complete solution for achieving perfect lip synchronization
The problem of speech lip-synchronization, which is common in AI-generated videos, can be solved by a systematic approach:
- hierarchical optimization: First select the "Exact Synchronization" mode in the voice settings, which will increase the 20% generation time but significantly improve the base match.
- speech rate adaptation: 120-150 words/minute is recommended for English content, while 180-220 words/minute is the optimal synchronization range for Chinese.
- <strong]Manual Calibration: Using frame-level editing tools, the positional deviation of the lip keypoints can be adjusted frame by frame, and the platform provides 8 adjustable control points for mouth morphology.
- <strong]Supporting Tips: add time stamps such as [pause 0.5s] to the text of the lines to give the AI clear rhythmic cues; or choose a language variant for the character that has clear pronunciation such as "Standard Mandarin".
For particularly important presentation scenarios, split-track processing can be used: the best-quality speech audio is generated separately and then imported for specialized lip-synchronized rendering. The latest version of the platform's V2.1 engine also adds a vowel lengthening adaptive algorithm, which automatically handles long-duration pronunciations such as "ah" and "wow". When encountering complex situations, the use of the "Smile and Speak" preset reduces the difficulty of synchronization.
This answer comes from the articleSkyReels: an AI video skit creation platform that specializes in generating panoramic portraits with natural movementThe
