What is an AI lip sync generator?

An AI lip sync generator creates mouth movement on a face video to match speech audio. The AI analyzes the timing of the audio and renders a new clip where the lips follow the dialogue.

Is this also an AI lipsync generator?

Yes. Lip sync, lipsync, and AI lipsync generator describe the same workflow. Melies keeps the canonical page at /lip-sync, and the /ai-lipsync-generator route redirects here.

Can I make an image talk with AI?

For still portraits, use the Melies AI Talking Head Generator. This lip sync page is optimized for face video inputs, while the talking head tool is built for image-to-talking-video workflows.

Is this lip sync tool free?

You can preview the workflow online. Generating and exporting lip-synced MP4 video requires a Melies plan and 20 credits per generation.

What source videos work best?

Use a clear MP4, MOV, or WebM face video up to 100MB with a visible mouth, limited occlusion, stable lighting, and speech-friendly framing. Fast head turns, covered mouths, and low-resolution faces can reduce sync quality.

What audio formats are supported?

Upload MP3, WAV, M4A, AAC, or OGG audio files. You can also type text and generate AI speech directly before syncing the video.

Can I use translated audio for dubbing?

Yes. Upload translated voice audio or generate speech from translated dialogue, then sync it to the face video. For subtitle-first localization, use the AI Video Translator too.

Can I use my own voice recording?

Yes. Upload your own audio and the AI syncs the face to your recording. Works with any clear speech audio.

Why does lip sync quality vary?

Quality depends on the source face video, lighting, mouth visibility, audio clarity, and duration mismatch. If a result feels off, try a clearer clip, cleaner audio, or a different sync mode.

How is Melies different from HeyGen, VEED, Canva, Kapwing, Sync Labs, and Magic Hour?

Those tools each emphasize a different workflow: avatars, browser editing, video translation, social editing, API sync, or quick talking-photo creation. Melies focuses on lip sync inside an AI filmmaking workflow that connects character creation, voice generation, subtitles, translation, sound effects, music, and video generation.

Can I use lip-synced videos commercially?

Generated outputs can be used according to your Melies plan and the Melies terms. For client work, paid media, or resale, review the usage rights attached to your subscription.

Video + speech, aligned

AI Lip Sync Generator

Lip sync you can judge with your own ears.

Upload a face video and an audio track, or type new dialogue. Melies returns an MP4 with mouth movement matched to the speech while preserving the source performance.

00:08

Actual lip-synced outputSound on demand

Two inputs, one performance

Bring the face. Bring the line.

Use a clear face video with visible mouth movement, then provide recorded audio or type dialogue for a generated voice track.

or type dialogue

When audio and video lengths differ

20 credits per generation · MP4 export

Input quality matters

Give the model a face it can read

A visible mouth, stable framing, and clean speech matter more than cinematic polish at this stage.

Use a visible face video

Front-facing or three-quarter faces work best. Avoid hands, props, heavy shadows, masks, and fast head turns that hide the mouth.

Add clear speech audio

Upload MP3, WAV, M4A, AAC, or OGG audio, or type a script and generate a voice. Clean speech gives the model stronger timing cues.

Making an image talk?

Use the AI Talking Head Generator for still portraits, then bring the result back into lip sync, translation, or subtitle workflows when needed.

Choose the right tool

Lip sync is not Talking Head

Both make a person speak, but they begin with different source material and solve different production problems.

ToolStarts withBest for

Lip SyncFace videoReplacing or adding speech Talking HeadStill imageAnimating a portrait

Production controls

Match the speech without breaking the shot

The sync mode defines what happens when the source video and speech do not share the same duration.

Matched Mouth Movement

AI-generated mouth shapes follow the uploaded audio or generated voice, helping dialogue feel more natural than manual timing or simple mouth animation.

Own Audio or Script

Use a recorded voice track, narration, translated audio, or typed dialogue. Melies can generate speech when you do not already have an audio file.

Voice + Lip Sync Pipeline

Move from script to voiceover to lip-synced clip without stitching together separate apps. Useful for character dialogue, explainers, and creator videos.

Character Workflow

Create a character, generate a short video, add dialogue, then keep building the scene with subtitles, translation, sound effects, and music.

Audio Upload Support

Upload MP3, WAV, M4A, AAC, or OGG files for narration, voice acting, podcast clips, translated dialogue, or client-provided audio.

Sync Mode Control

Choose how Melies handles duration mismatches: cut off, loop the video, bounce, pad silence, or remap timing for harder source clips.

Continue the workflow

Voice, sync, subtitles, delivery

AI Voice Generator

Create the speech track from written dialogue.

Talking Head

Animate a still portrait instead of a source video.

Video Translator

Translate speech before synchronizing the new language.

Subtitle Generator

Add readable captions to the finished performance.

AI lip sync generator: frequently asked questions

Practical answers before you start creating.

Make the new line belong to the face.

Upload the shot, add speech, and generate a lip-synced MP4 ready for the next edit.