Fix lip-sync, unclear speech or doubled audio

Listen to the source before judging the animation

If a word sounds wrong in the original audio, the portrait cannot correct it. Compare the source recording and the generated video at normal speed. Check pronunciation, clipped consonants, abrupt starts and long gaps. A clean source makes it easier to identify a genuine synchronization problem.

Do not judge only from muted autoplay. A face may look convincing in silence while the timing feels wrong with speech. The Knowledge Base uses player controls and captions so you can inspect the complete examples at your own pace.

Review the beginning, middle and end

Watch an opening sentence, a section with several pauses and the closing phrase. Pay attention to whether mouth movement begins and stops with speech. Then check the overall expression and whether the face remains stable during longer passages.

Use the longer service example to practice this review. A full message gives you more evidence than a few seconds of motion. We publish the complete output and its source audio so you can form your own judgment rather than relying on a quality score with no defined test.

• Audio: every sentence is audible, with no doubled voice or cut-off ending.
• Timing: mouth motion follows speech and pauses reasonably at natural breaks.
• Appearance: face, teeth, jaw, shoulders and background remain usable throughout.
• Edit: cutaways do not interrupt a sentence, and text does not cover the mouth.

Match the symptom to a change

A rushed delivery usually needs a slower or shorter narration. A distorted face near an occluded mouth suggests starting with a clearer portrait. A voice heard twice often means the Editor is playing both the clip audio and a separate narration track.

If the source audio is clear but synchronization remains distracting in the raw result, try a clearer portrait or another supported setting and compare a new run. A new run is not guaranteed to improve every detail. Review its quote first, retain the previous version and change one variable so the comparison is useful.

A product cutaway can help the story and cover a visually weak passage, but it does not fix the underlying animation. Describe edited outputs accurately: viewers should know when a complete ad includes an edited sequence rather than one uninterrupted generated shot.

Make the delivery easier to follow

Break complicated ideas into short sentences. Use punctuation to guide narration, then listen to how the selected voice actually interprets it. Leave enough room for the viewer to understand a product detail before moving to the next point.

For an uploaded recording, make the desired pause in the recording itself. Editing a script field does not alter that audio. When revising synthetic narration, generate and approve the new recording before starting another Talking Head run.

Check the final export separately

The raw presenter can be fine while the final ad has a timeline error. Play the exported MP4, not only the Editor preview. Verify the first and last seconds, the music level if used, text legibility and every cut where the presenter gives way to product footage.

Record what you changed and why. The example pages distinguish generated source material from an edited final output and include measured settings. This is a practical review method, not a claim of perfect lip-sync or a promise that every input will work equally well.