The final export is where the work either holds together or falls apart. Here is what actually happens when you click Export in RythmoClip, and why the mix sounds the way it does.
What the export contains
The export is a single MP4 file. It contains the original video, the original audio for every character you did not recast, and your recorded takes for every character you did recast.
The two audio layers are mixed at the same level as the original. Your voice sits where the original character sat in the stereo field. If the original character was panned slightly left, so is yours.
The vocal separation step
Before the studio session, RythmoClip separates the vocals of the characters you picked from the rest of the mix. That separation is not perfect — it is a browser-grade source separation, not a professional stem mix.
The original mix track has those vocal frequencies reduced. Your recording takes their place. The seams are less audible when the original recording is clean and uncompressed.
Room tone and matching levels
The single most common problem with exported fandubs is a mismatch between the ambient noise of the original recording and the ambient noise of the new take. A professional booth is acoustically dead. A bedroom is not.
If your recording has audible room tone that the original does not, the character's voice will sound like it is in a different space. A light noise gate and a short reverb tail can help. RythmoClip does not apply these automatically — that is a deliberate choice to not impose processing on your performance.
Sharing the result
The exported file is yours. You can post it, share it privately, or use it as a demo. It is a standard MP4 at the resolution of the source clip. No watermark, no platform lock.