# Video remix: the complete guide > Updated: 2026-10-30 · Applies to KiiKii > HTML version: https://kiikii.cc/en/doc/remix ## Quick answer - Remix captures the opening hook, shot order, rhythm, scene structure, and selling-point text cards. - You can replace the people, product, scenes, voiceover, and script. - Existing digital-human avatars and cloned voices can be reused directly. - Keep the first 3 seconds, the shot order, and the overall duration; do not change the structure. - Source videos can be up to 2 minutes and 100 MB; longer videos are trimmed to the first 2 minutes. ## 1. What remix copies is structure Remix reads the source video's opening, rhythm, shot structure, and elements, then lets you decide what to keep and what to replace; it is built for creating content in the same vein, not for putting a new face on an existing clip. It breaks a video into character (replaceable with a digital-human avatar), product or object, scene or background, and structure (hook, shot order, rhythm, text-card placement, and closing call to action), and the final footage is regenerated from your choices. ## 2. Where remix fits best **E-commerce product ads** keep the hook and text-card rhythm while replacing people, product, scene, and voiceover to test different products quickly; **store visits** keep the walkthrough and reveal order while replacing store, signature products, and people; **talking-head explainers** keep information hierarchy, rhythm, and subtitle placement; **story or comedy re-shoots** keep conflict points, twists, and shot rhythm; **product swaps** keep handheld action, close-up timing, and composition. It works best with a clear structure, strong rhythm, and stable shots; fragmented shots or heavy fast camera movement are harder. ## 3. Upload or extract the source video Upload mp4 / mov / webm directly, or paste a Douyin, Kuaishou, Xiaohongshu, TikTok, or YouTube link to extract it automatically. Uploads must be under 100 MB, and credits are deducted only when link extraction succeeds. Videos longer than 2 minutes are trimmed to the first 2 minutes for analysis, then AI detects shots, people, objects, scenes, dialogue, and rhythm and produces a list of replaceable elements. ## 4. What reference images are for After uploading a reference image you must tag a purpose, and that tag drives the replacement mapping: Character (the on-camera subject), Product / Object (the item held or shown), or Scene / Background (environment, storefront, room, street). Up to 6 images are allowed, each tagged with a purpose; provide front, side, or in-use product shots, and avoid scene images with too much text, watermarks, or unrelated people. ## 5. Reuse avatars and voices You can use cloned avatars, designed avatars, and cloned voices from the digital-human asset center directly—up to 3 characters and up to 3 voices, so different characters can use different voices. If no character is selected the source's character structure is kept or AI performs freely; if no voice is selected the original audio is kept or AI dubs anew. Reuse makes sense when an account needs a consistent persona or a brand needs a unified look. ## 6. Element confirmation workbench Once AI understands the source video, it pauses at Elements to Confirm and lists people, objects, and scenes one by one for you to keep or replace. Check that the person was identified correctly, that the product is the item you want to replace, and that the scene should stay as is; elements you want to keep must be marked Keep as Is explicitly. You can also add overall revision notes on pacing, mood, or dialogue style before confirming. ## 7. What to change, what to leave Change the people and voice, product and selling points, scenes and storefronts, script and voiceover, and the closing call to action. Do not change the first 3-second hook, shot order and rhythm, overall duration and segment proportions, key actions and composition, or subtitle timing. For e-commerce, keep the hook, shot order, and text-card rhythm but change people, product, scene, and pricing; do not reuse the source's likeness, brand logos, copyrighted music, or long dialogue for commercial publishing. ## 8. Generation and review After confirmation, AI plans the shots, pre-deducts credits, generates segment by segment, and stitches the result automatically; each segment is independent, failed ones can be retried on their own, and stitching happens once all succeed. Compare the new video with the source for the opening hook, shot order, whether the swaps look natural, and whether subtitles are blocked, then download the clean version (no editing packaging) or the edited version (with text cards and packaging), plus three sets of publishing copy (suspense, informative, emotional). ## 9. Results The showcase pairs the same source video with an output regenerated using a new presenter, product, and scene. Compare structure and rhythm first, then whether the swaps look natural: a drifting structure means too much was changed, while stiff replacements mean the reference images and descriptions were not specific enough. ## FAQ ### Does remix simply put a new face on the original video? No. Remix understands the source video's opening hook, shot order, rhythm, scene structure, and selling-point text cards, then re-performs them with the avatar, product, and scene you choose. It copies the structure, not the original footage. ### Can I reuse existing digital-human avatars and cloned voices? Yes. In the character step, pick existing cloned or designed avatars from the My library, up to 3 per project. In the voice step, choose from My Cloned Voices, keep the original audio, or let AI generate freely. ### Can I remix a video that has no people in it? Yes. If the source has no people, selecting Character makes the digital human re-perform in that role; if you only want to replace the product and scene, you can keep the no-person structure. ### How long can the source video be? Uploaded or link-extracted videos can be up to 2 minutes and 100 MB; anything longer is trimmed automatically to the first 2 minutes. Start by testing with a proven 15–60 second structure. ### What should I change, and what should I leave alone? Change the people, product, scene, voice, script, and selling points; do not change the first 3-second hook, shot order, overall duration, key actions, or composition. Change the structure and remix's rhythm advantage disappears. ### Are credits refunded if a remix fails? Submitting pre-deducts credits per segment, and failed segments are refunded automatically; you can also retry a single segment. You can stop a job mid-generation, and unfinished segments are refunded per the rules. ### Can the remixed video be used commercially? Make sure you hold the appropriate rights to the source structure, reference images, avatars, voices, music, and script, and comply with platform rules and the law. Do not directly copy anyone else's brand marks, likeness, or copyrighted footage or music.