kling/kling/lipsync/audio-to-video
Kling Lipsync synchronizes audio and video for lifelike mouth motion while preserving facial identity and background continuity.
Introduction to Kling Lipsync AI Video Generator
Kling Lipsync, developed by Kuaishou as part of the Kling AI ecosystem. Positioned as a next-generation video-to-video and audio-to-video synthesis tool, Kling Lipsync enhances precision with millisecond-level synchronization between speech and mouth motion. You can expect accurate facial expressions, natural head movement, and flexible compatibility with TTS or uploaded audio, all rendered in up to 1080p resolution. Its architecture supports both individual and multi-person scenes, letting you seamlessly convert still images or video sources into lifelike, lip-synced outputs that bring dialogue to life. Kling Lipsync video-to-video, audio-to-video generation empowers you to create captivating talking avatars or redubbed clips with expressive realism. Built for creators, educators, and marketers, it delivers synchronized lip motion, emotion-aware facial cues, and powerful customization – giving you true control over how every word looks and feels on screen.
What makes Kling Lipsync stand out
Kling Lipsync is a precision video-to-video and audio-to-video system from Kuaishou’s Kling that aligns mouth articulation to speech while preserving identity, pose, and lighting. It performs targeted, frame-tracked adjustments to the lip region rather than full-frame regeneration, minimizing flicker and drift. Use a short portrait video or animate a still into a video, then pair it with narration or music for reliable viseme-to-phoneme timing. The pipeline enforces practical production limits for stability: video clips 2–10s in .mp4/.mov (≤100MB) at 720p/1080p, and audio 2–60s (≤5MB). Kling Lipsync is optimized for human or humanoid faces and typically completes per-clip processing within minutes. Key capabilities:
- Audio-to-video lipsync with uploaded voice, narration, or TTS.
- Image-to-video animation to create a base talking shot from a still.
- Structure preservation of facial geometry, expression, and head motion.
- Frame-accurate mouth tracking for stable timing across short clips.
- Format and resolution reliability: 720p/1080p, .mp4/.mov, size- and duration-aware.
- Practical throughput: commonly 5–10 minutes per lip-sync operation.
- Human/humanoid-face focus with content filters for safer outputs.
Prompting guide for Kling Lipsync
Start by preparing a clean, front-facing clip (2–10s) where lips are unobstructed and well lit; if starting from a still, generate a neutral talking base via video-to-video before syncing. Provide audio (2–60s, trimmed to the intended section) with clear diction and minimal noise. In your brief, specify what to preserve (identity, gaze, background) and the desired delivery (neutral, smiling, energetic). For best results, keep segments concise; many workflows favor ~10s chunks for consistent alignment. Kling Lipsync benefits from face-centered framing and stable head pose. Example use cases:
- Upload portrait video; sync to podcast intro; preserve original head motion.
- Animate a still headshot; lipsync to a 15-second product VO.
- Replace dialogue in a short clip; maintain emotion and timing.
- Localize speech for dubbing; keep mouth closed during pauses.
- Music sync for chorus segment; subtle expression, no background changes. Pro tips:
- Respect constraints: video 2–10s, 720p/1080p, ≤100MB; audio 2–60s, ≤5MB.
- Ensure full lip visibility; avoid hands, mics, or hair occlusions.
- Use clean audio at consistent volume; trim silence and tighten timing.
- Segment longer scripts into ~10s clips to reduce drift and rework.
- Limit to human/humanoid faces; keep framing stable for better tracking.
Examples of Kling Lipsync in Action
Kling Lipsync on X: Community and Updates
Frequently Asked Questions
What is Kling Lipsync and what does it do?
Kling Lipsync is an advanced feature of Kling AI that performs precise audio-to-video synchronization, aligning speech and lip motion with high accuracy. It also supports image-to-video generation, allowing users to animate static faces or existing clips with natural facial and mouth movements.
How does Kling Lipsync handle image-to-video and audio-to-video creation?
Kling Lipsync processes both image-to-video and audio-to-video inputs by combining static images or pre-recorded videos with audio or text-to-speech. The tool analyzes vocal tone and timing to produce realistic lip motion, eye tracking, and subtle facial gestures that match the sound.
Is Kling Lipsync free to use or do I need credits?
Kling Lipsync can be accessed through the Runcomfy AI playground, where new users receive free credits for trial use. For extended or high-resolution image-to-video and audio-to-video conversions, each generation consumes a set number of credits according to the pricing policy listed in the Generation section.
What makes Kling Lipsync different from other lip-sync or dubbing tools?
Kling Lipsync offers millisecond-level precision in its audio-to-video synchronization and enhanced realism in expression capture. Its image-to-video flexibility, multi-character support, and integration with Kling AI’s advanced video generation modules make it stand out among competing tools.
Who can benefit most from using Kling Lipsync?
Kling Lipsync benefits creators such as filmmakers, voice actors, animators, and educators who need accurate lip-syncing for their content. Whether using audio-to-video for dubbing or image-to-video for animated avatars, it helps produce lifelike and expressive talking characters efficiently.
What file formats and durations does Kling Lipsync support?
Kling Lipsync accepts standard audio and video formats and supports both image-to-video and audio-to-video projects. Users can typically generate video clips of 5 to 60 seconds, depending on the plan or credit usage settings on Runcomfy.
Can Kling Lipsync be used on mobile devices?
Yes, Kling Lipsync runs smoothly in modern mobile browsers through the Runcomfy website. Users can upload audio or image-to-video files, perform audio-to-video synchronization, and download the generated results without needing separate app installation.
What are the limitations of Kling Lipsync when creating audio-to-video content?
Although Kling Lipsync produces excellent results for clear human or humanoid faces, it may have limitations with stylized or non-human characters. Image-to-video performance depends on mouth visibility and resolution, and longer audio-to-video conversions may require more credits.
How high is the output quality of videos produced by Kling Lipsync?
Kling Lipsync offers 720p and 1080p video output depending on the model tier. Both image-to-video and audio-to-video clips are generated with refined synchronization, realistic emotion transfer, and minimal visual artifacts for professional-quality results.
Where can I access Kling Lipsync and find support?
Users can access Kling Lipsync via the Runcomfy AI playground after logging in. The platform supports both image-to-video and audio-to-video workflows. For feedback or troubleshooting, users can contact the support team directly at hi@runcomfy.com.