Kling AI Lip Sync Tutorial 2026: Upload Audio, Set Clip Limits, and Fix Common Bugs

Kling AI’s Lip Sync feature creates talking-head videos by matching mouth movements to either uploaded audio or speech generated through its built-in text-to-speech tool, typically processing clips in under a minute without manual key-framing. Available in the AI Human section of the web platform, it accepts videos up to 60 seconds long, works best with clear audio and front-facing, well-lit faces, and supports Chinese, English, Japanese, Korean, and Spanish in Kling 3.0. Users can upload a video, choose audio or TTS input, generate the result, review synchronization, and regenerate if needed; longer videos must be split into separate segments. The feature can also support multi-character scenes with independent audio tracks and timing controls through certain Kling 3.0 integrations. Reported issues include text artifacts in TTS-generated outputs, facial distortion on angled faces, and different mobile navigation, with suggested remedies including using uploaded audio, choosing frontal footage, and accessing AI Human through the mobile menu. Atlas Cloud offers API access to Kling 3.0 at per-second Standard and Professional pricing tiers, while its Kling Video O3 option adds custom-subject and voice-cloning capabilities.

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