A product demo has one job, and that's showing what your software actually does. AI video can help with pacing, motion, and narration, but it shouldn't ever blur the truth about your product. The workflow below keeps a real person signing off at every stage, so generated clips support your demo instead of replacing the honest parts.
Start with a plain-text storyboard
Before you generate a single frame, write your storyboard in a table or a file that lives in version control. For each shot, jot down an ID, what the viewer should walk away knowing, the source asset, the narration line, and who reviews it. When your storyboard sits in the repo, teammates can comment on it in a pull request, just like they would with code.
It also gives you one simple rule to follow. If a shot makes a functional claim, like "this filter narrows your results," it should come from a real screenshot or screen recording, never from a generated clip.
Only use assets you're allowed to use
Grab screenshots from a build you control and use test data, not real customer records. Scrub emails, API keys, and internal URLs. If a frame includes third-party logos, stock photos, or fonts, double-check that the license covers promotional video.
Magic Hour's pages remind users to make sure they have the rights to any image they upload, so give that check a named owner on your team. Read the terms for your plan too. According to the pages, commercial use of outputs depends on having a paid subscription, a credit-pack purchase, or a separately agreed paid billing arrangement, and free video exports include a watermark.
Animate stills, but go easy
Image-to-video tools take a still frame and turn it into a short clip. With image to video AI, the vendor's page says you upload an image, optionally describe the motion you want, then generate and preview the result. Aspect ratios, durations, resolutions, and audio support all depend on the model you pick, so look at the options before you plan your shots.
Here's the catch for software demos. Generated motion can change small details. The vendor itself suggests checking motion, faces, text, and fine details before you publish, and another page warns that generated on-screen text may be inaccurate. If a button label shifts halfway through a clip, your demo is now saying something false about your product.
So keep generated motion for title cards, backgrounds, transitions, and scenes that don't carry product claims. For dashboards, forms, error messages, and pricing tables, stick with a real recording and add a gentle zoom in whatever editor you already use.
Treat every clip like a draft
Magic Hour's overview page says its modes create individual clips. They don't automatically put together a full video with several scenes, narration, and captions. That assembly part is on you.
The AI video generator from Magic Hour brings several tools and models into one place, and availability changes by plan. If you plan to connect through the API, read the current docs first instead of assuming a setting exists. Keep a log of the settings and source filenames next to each storyboard row. That way, anyone on your team can reproduce a shot or question it later.
Check the voice and the lip sync
When a presenter or avatar talks in your demo, the narration and the mouth movement each need their own review. Lip sync AI in Magic Hour starts with a video that has a visible face, plus an audio track you upload. The vendor says results depend on face visibility, source quality, and audio clarity, and it recommends front-facing footage with good lighting.
Two limits are worth knowing. The tool adjusts the video to match your audio, but it doesn't translate speech, so a localized demo needs a translated audio track before you start. The free tool also caps video length, so check the current limits for your plan.
When you review a clip, watch it at normal speed and slowed down, with sound and with the sound off. Make sure the mouth follows the words, nothing odd shows up around the face, and the audio says exactly what your script says. If you use a synthetic voice, confirm you have permission to use it and that your platform's disclosure rules are covered. The vendor's FAQ points out that a missing watermark doesn't erase your disclosure duties.
Build accessibility captions from your script
Captions help people who are deaf or hard of hearing, folks watching with the sound off, and anyone stuck in a loud room. Since you already wrote the narration in your storyboard, start there. If you'd rather run automatic transcription, think of the output as a rough draft.
Go through it and verify product names and technical terms, timing against the final audio, line length, and contrast. If your demo shares something only visually, like a chart that changes over time, add a text description next to the video so nobody misses it.
Make human QA a real gate
Review shouldn't be a box you tick at the end. Give it named people. Your product owner confirms that every functional claim matches what actually ships. A second reviewer hunts for changed interface text, distorted faces, or UI elements that don't exist. Someone else watches the final cut for narration, sync, and captions.
Then one more person checks that your input assets are licensed and free of sensitive data, that your plan allows commercial use, and that any AI-generated or synthetic parts are labeled wherever your platform, client, or local rules ask for it. Store the storyboard, the settings log, and the sign-offs together. Later on, anyone can see what was generated, what was recorded, and who approved each shot.
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