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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11AI avatar platforms create talking-head videos by pairing a presenter—stock, synthetic, or based on an authorized person—with a script or audio track. They generate or accept speech, synchronize an avatar’s performance to it, and assemble the result with a background and other visual elements. The details vary by product: there is no single production pipeline or universal set of recording, consent, or licensing rules.
How an AI avatar video is made
Most workflows follow the same broad sequence, even though individual platforms offer different inputs and controls.
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- Choose the presenter. Select a platform’s stock avatar, a synthetic avatar where available, or a custom avatar based on a real person. Custom likenesses require authorization; the person’s footage, voice, and consent process depend on the platform.
- Provide a script or audio. A platform may accept typed text, a prompt, a document, a presentation, a link, or an uploaded recording. Synthesia, for example, describes creation from scripts, PowerPoint files, documents, links, or prompts, alongside avatars, voices, motion graphics, and generated media (Synthesia’s video creation overview). Voice options can include text-to-speech, a cloned voice, or audio supplied by the creator.
- Generate or use the speech and animate the presenter. In its technical report, HeyGen describes Avatar V’s script-based workflow as generating a driving audio track from the text and passing it into its video-generation system; its audio-driven workflow instead starts with audio the user provides (HeyGen’s Avatar V report). Synthesia says its legacy personal video avatars distinguish speaking from silent portions and coordinate body movement with the script (Synthesia’s personal-avatar instructions). These are platform descriptions, not a verified account of every provider’s underlying model.
- Compose and edit the scene. The generated presenter can be placed with a background, graphics, B-roll, or other media. Synthesia documents motion graphics, generated media, and interactive elements as options in its creation offering (Synthesia’s video creation overview).
- Review and export under the relevant terms. Check the avatar’s license and the intended destination—particularly if the video will be used in paid promotion or commercial distribution. Synthesia’s licensing guide distinguishes stock, synthetic, and custom-avatar rules and says custom-avatar use follows the agreement with the likeness owner (Synthesia’s avatar licensing guide).
What you need to make one
For a basic video using a stock avatar, the main inputs are a script or audio, a selected presenter, and any scene elements you want to add. A custom avatar can require substantially more preparation: authorized source footage, a consent recording, and sometimes voice material or identity checks. Exact requirements are product-specific.
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A stock presenter is ready to select, so you do not need to record a person to create the avatar. That convenience does not mean every use is permitted: platform terms may restrict publication or paid advertising depending on the avatar category. Confirm the license before production, not only at export.
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A custom avatar can provide a recognizable presenter, but it ties the video to a real person’s likeness and may involve collecting sensitive footage or voice recordings. Synthesia describes personal-avatar footage and studio-capture workflows; its separate voice-cloning process allows recording or uploading audio and requires consent recorded live (personal-avatar instructions; voice-cloning instructions). HeyGen says the person shown in a video-based Digital Twin must submit their own consent video (HeyGen Digital Twin instructions).
Recording requirements: one platform-specific example
Capture specifications are not universal. For a Synthesia Studio Avatar, the current help instructions call for three performance videos and a separate consent video read by the performer. They recommend 4K UHD at 29.97 or 30 frames per second where possible, with Full HD as the minimum; they also call for sharp facial focus, controlled framing, good lighting, and clean audio synchronized with the video. A high-quality camera and external microphone are required for that Studio recording workflow (Synthesia Studio Avatar instructions). These specifications apply to that workflow, not to every avatar product.
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Consent, transparency, and permitted use
When an avatar represents a real person, permission should be explicit and connected to the intended use. HeyGen says the featured person must record their own consent for a video-based Digital Twin, and its ethics statement says custom avatars and videos depicting them should be created or shared only with expressed permission (Digital Twin instructions; HeyGen’s ethics statement). Synthesia’s Studio workflow also includes a consent script read by the performer. These safeguards describe particular vendor workflows; they do not settle every legal or contractual question.
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Transparency features differ as well. Synthesia says customers can elect audio or visual markers through its script and editor features, while freemium videos have watermarks by default. It also places responsibility on customers to use its services in line with laws that apply to them (Synthesia’s AI governance practices). Check the current platform rules, the avatar-specific license, the publishing channel, and relevant local requirements before release.
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How to compare platforms for this workflow
Compare capabilities against the kind of video you intend to make rather than assuming all services offer the same pipeline.
- Presenter choices: stock, synthetic, photo-based, or video-based custom avatars.
- Custom-avatar capture: required footage, consent recording, identity checks, and any camera or audio specifications.
- Voice inputs: stock text-to-speech, custom voice cloning, or uploaded audio.
- Creation and editing: script and media inputs, scene controls, localization options, and export workflow.
- Privacy and governance: consent, access, deletion, and disclosure controls.
- Licensing: what each avatar category permits, especially for advertising and commercial distribution.
Synthesia documents script, document, and prompt inputs as well as localization capabilities in its product overview (video creation overview); its licensing guide explains that publication rules differ by avatar category (licensing guide). Those examples illustrate comparison criteria, not an independent ranking of products.
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