November 13, 2026
Can AI video replacement keep original audio?
Yes. In Genjutsu AI the download keeps the original audio from the video you upload. Music, vocals, and the other sound in that file stay, on the same timing. The people you add photos for change. The motion, the camera, and the cuts stay with them. The download is 720p. You do not write a prompt, and there is no switch for a new soundtrack.
What stays in the sound
Upload a dance that already has a song. The new video is that same take, with your photos in it, and the song is still the song from the file. The sound is not rewritten to match a different clip.
- Music
- The track that was already in the file stays in the download.
- Vocals
- Singing and speech that were recorded stay with that take.
- Other sound
- Room sound and effects that were in the file stay too.
- Timing
- The sound stays lined up with the video you uploaded.
- The beat
- The dance stays on the same counts, because the audio did not move.
- The picture
- People you put a photo on change. The sound does not.
The sound follows the file
The audio stays with the length and the cuts of the video you uploaded. A scene longer than 15 seconds cannot be generated. There is no control to swap in a different song.
You still need the rights
Keeping the sound means the audio from your file is in the download. It does not give you a new license to the music. Use a video you have the right to upload. That includes the music, vocals, and recordings already in it. A photo of someone else needs their permission.
What it costs
Drop in mp4, mov, or webm, up to 80MB. Ten credits cover every 15 seconds. The first order is $6.90 and covers one video up to 15 seconds. After that, the Starter Pack is $9.99. The price shows before you generate. A failed generation returns its credits.
Keep the sound on a clip you have
Sign in, drop the video, and add a photo for each person you want to replace. Finished videos stay on the account.