Choose one clear portrait.
The upload targets the central performer in the pink shirt and sunglasses. You need one photo, not a group picture or a second performer photo. The people around the lead are intended to stay as they appear in the original scene.
- Use a JPEG, PNG or WebP file up to 10 MB.
- Pick a sharp, well-lit image with one visible face.
- A front-facing or slightly angled portrait gives the model more facial detail than a distant or side-profile shot.
- Avoid heavy filters, face coverings and motion blur.
The studio can also load an example portrait so you can inspect the setup. Upload your own photo to make a personal version.
Watch the original Bulin 47 clip.
Play the source in the studio with sound before choosing settings. It is a vertical event clip of about 23 seconds. The lead is in the center; other people appear behind him and hold phones in the foreground. Notice the first frame, movement and camera position so you can compare them with your result.
Every length starts at 0:00 of the same source. The 5-second option uses the opening, 12 seconds adds the next portion, and 23 seconds includes the prepared full cut. This tool does not accept a custom source video.
Choose the length, quality and frame.
Pick 5, 12 or 23 seconds, then 480p or 720p. Keep the original frame if you want the source composition. Square and vertical output options use a centered crop after generation, so check the frame preview for people near the edges.
| Setting | What it does |
|---|---|
| Length | Uses the first 5, 12 or 23 seconds of the source. |
| Resolution | Sets 480p or 720p output and affects the credit quote. |
| Frame | Keeps the original composition or makes a centered crop. |
The studio calculates the exact credit quote from your selected settings. You can review credit pricing before continuing.
Review, then generate your video.
Confirm you have permission to use the portrait and open Review video. Check the reference photo, selected source segment, frame, resolution and credits. Opening review is free; the final Generate action submits one request and reserves the quoted credits.
Sign in or create an account if prompted. A completed request settles the reservation. A definitive failure returns the reserved credits; if a connection times out, check your last request before submitting again because the first request may still be running.
Watch and check the finished MP4.
The result page opens after the request is saved. Once generation and media checks finish, watch the whole video before downloading or sharing it. The original source audio is restored to the generated clip; it does not synthesize a new voice or song.
- Compare the lead’s face with your portrait throughout the clip.
- Check that the surrounding people, background and opening match the source closely enough for your use.
- Inspect hands, clothing, expressions and mouth timing during movement.
- Listen to the audio and check the duration and crop.
AI results can vary. Restored audio does not guarantee exact lip sync, and the model may change details beyond the lead.
Common questions.
Can I make the video on this page?
Yes. Use the Bulin 47 studio above to upload your portrait, choose settings and submit the video.
Does the blue-character example show the exact output I will get?
No. The blue-character preview is a separate six-second silent showcase. Your generation uses the selected 5, 12 or 23-second source cut and restores its audio.
What if the wrong person changes?
Review the entire result against the source. The model is instructed to recast the central performer, but identity and background details can vary. A new portrait or another generation is a separate request.
Where can I get help?
For a generation, billing or privacy question, see contact and support. Include the request reference when asking about an existing video.