Singing Pet video: what to do if the sound doesn't line up
Updated:
Short answer
The mouth follows the timing of the viral clips, so it lands on the beats if the sound starts at the first frame. Start there, use the silent download so two tracks don't fight, and try another upload of the sound if it still drifts.

Start with these checks
- Where the sound begins: set it to start at the first frame of the clip.
- Which file you saved: the silent download has no second track underneath.
- Which upload of the sound: copies are trimmed a little differently.
- Speed: leave the clip at normal speed.
Fine-tuning
If the final note is slightly early or late, shift the sound by a few frames in TikTok's editor or in any video app. The full 10-second video is the one that matches the originals; the 5-second preview is compressed.
Questions people ask
Is the song already inside the AI video?
No. The video has its own orchestral swell with no voice. The trending sound is something you add yourself.
Does the preview match the sound?
Not exactly. It runs the beats faster, so judge the timing from the full video.
Can the video be sped up or slowed down?
You can, but the beats will no longer match the original timing, so it usually looks worse.
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