Which audio is included?
The soundtrack comes from the selected meme reference, not from your still photo. The longer template retains the dialogue for its 11-second scene, while the short version uses the corresponding 6-second excerpt. The final MP4 includes the audio track, so you do not need to download a separate sound file to hear it.
The homepage preview is reference footage. It lets you hear the scene the tool is recreating, but it is not evidence that a generated pet or human face will reproduce every expression. The tool does not clone the voice of the person in your uploaded photo.
Why can the words sound right while the mouth looks wrong?
Keeping the recorded sound and matching every mouth movement are different parts of the result. The picture is AI-generated, and the final export uses the template dialogue. A face can open its mouth late, hold an expression too long or make a shape that does not match a particular syllable.
This is especially noticeable with a pet muzzle or a strong face turn. Choosing a clearer photo can give the model a better view of the subject, but a photo change is not a guaranteed repair for lip sync. A longer video is not automatically more accurate either.
Check the downloaded file before changing anything.
First play the completed video with sound enabled. Then download the MP4 and play that file on your device. A muted browser tab or a player with its volume turned down can hide a perfectly present audio track. Listen from the first line through the last word, not only the beginning.
If the file has sound but the jaw or muzzle does not follow the words, that is a visual lip-sync issue. If the whole audio track seems shifted in an edited copy, compare it with the original download before regenerating. Keep an untouched copy so you can identify where a change happened.
What can I fix without another generation?
An editor can trim an awkward ending, lower the volume or add a caption. When trimming, keep the video and its audio together so you do not create a new timing offset. Moving the sound alone cannot repair the shapes of a generated mouth.
If the final download is missing its audio or appears corrupted, contact support with the task reference and a description of the issue. Do not repeatedly create new tasks just to see whether a download problem disappears: each new task can spend credits.