Get the right result: check these first
Match the tool to the source. Use a video and the audio it should follow. Use Talking Photo for a still image. The current Standard mode explicitly requires source mouth movement.
Output is shorter or starts at the wrong words. Check both video and audio trim positions. Output duration uses the shorter selected segment. Adjust the selection rather than adding duration instructions to a prompt.
Voice-cloning input is not ready. If the editor says to generate audio with Voice Cloner, finish that audio-generation step first. A selected voice or reference recording alone is not the finished speech input.
Still stuck? Contact support with the tool name, project link or visible ID if available, mode, video/audio start and end positions, audio source, and timestamp of the mismatch. Keep the project while it is reviewed. How to send useful troubleshooting details.
Create a lip-synced video in the Dashboard
Sign in and select Add Video. Use a video with a clearly visible face.
Select Add Audio and supply the speech or singing you want the mouth to follow.
Check the selected video and audio sections, then choose the available Lip Sync Mode.
Review the estimate and select Generate Video.
Check mouth movement and audio timing in the completed result, then download.
Choose the correct route
Free Lip Sync
Use Free Lip Sync. It does not require sign-in or use account credits. It offers up to three free generations daily and produces 576px output. It accepts uploaded or preset video and audio, not YouTube video.
Full Create editor
Use Lip Sync editor. Generating requires sign-in and uses credits. It accepts uploaded, preset, or YouTube video. Audio can come from an upload, preset, or voice-generation option.
Modes
Lite: faster and more affordable for simple clips. Available on Basic and paid plans.
Standard: balanced, realistic lip sync. Available on Basic and paid plans. The source needs visible mouth movement.
Pro: higher detail for teeth, beards, and facial texture. Requires Creator or higher and visible mouth movement.
Duration and timing
Standard and Pro support selections up to 30 minutes.
Lite uses the current clip and credit limit shown by the editor.
The selected video cannot exceed the available audio.
If video and audio differ in length, output uses the shorter selection.
Lip Sync changes visible mouth movement to follow supplied audio. It does not retime the full video, change audio tempo, or guarantee mismatched performances align perfectly.
Uploads
Video: MP4, M4V, MOV, and WEBM.
Audio: MP3, WAV, AAC, FLAC, WEBM, WEBA, M4A, OGA, and OGG.
Use one clearly visible face and clear audio. Multiple, profile, and obstructed faces are best-effort.
Still images
Use Talking Photo for a still image.
Resolution, watermark, and credits
Create supports up to 576px on Basic, 1024px on Creator, 1472px on Pro, and 4096px on Business, without enlarging beyond the source. The estimate is authoritative. Basic output is watermarked unless the account has a credit pack; paid plans and pack purchasers receive watermark-free output.
Troubleshooting
No mouth movement: keep the face and mouth visible. Standard and Pro require source mouth movement.
Audio starts late: adjust audio start and end positions.
Output ends early: compare selected video and audio lengths.
Still image: use Talking Photo.
Send support the project link or visible ID, route, mode, clip length, audio source, and screenshot.