The AS3 Talking Avatar library for Starling Mobile is a small ActionScript 3 code library that adds a lip-syncing animated character to Adobe AIR mobile projects built on the Starling framework. A developer points it at a vector avatar file and an MP3 voice clip, adds the avatar to the display list, and the character’s mouth moves in time with the audio. It is aimed at Flash and AIR developers who want a ready-made talking character in an iOS or Android app without building a lip-sync system from scratch.
The product is sold on ThemeForest for $18 under the Mobile category. It ships as source code with a FlashDevelop project file, five sample vector avatars and ASDoc-style documentation. The vendor, DoitFlash, does not disclose a sales figure for this item, so there is no purchase history to weigh up; the assessment below rests entirely on what the package contains and how it is put together.
What the AS3 Talking Avatar library actually does
The core function is narrow and clearly defined: it synchronises a mouth animation to an audio track. The developer supplies two assets — a graphic for the character and an MP3 for the voice — and the library handles loading, playback and the timing between them. That is the whole proposition, and it is worth understanding before buying, because this is a component rather than an application framework.
Avatar and voice loading through events
The library exposes a StarlingAvatar class with separate load calls for the avatar graphic and the MP3. Both report completion through events, so the developer can chain the steps: load the avatar, then load the voice, then play. The voice-loaded event carries the length of the MP3 in milliseconds, which is useful for building progress indicators or timing other on-screen elements against the audio.
Playback control with pause, resume and stop
Playback is not fire-and-forget. The pause method returns the current position in milliseconds, and that value can be passed back into the play method to resume from the same point. A stop method halts the sound outright, and a separate event fires when playback finishes naturally. For anyone building a narrated story, a language-learning drill or a character-driven onboarding sequence, that level of control covers the common cases.
Memory cleanup and Starling integration
The class includes a dispose method for releasing memory when the avatar is no longer needed — a detail that matters on mobile, where AIR apps are held to tighter memory budgets than desktop equivalents. The avatar is added as a child of a holder display object with a defined width and height, which means it slots into an existing Starling scene graph rather than imposing its own rendering approach. The vendor notes that the texture generation relies on the DMT library, a third-party open-source utility hosted on GitHub.
Sample assets and documentation
Five vector avatars are included, which removes the need to commission artwork before testing the integration. The documentation is ASDoc format — generated reference material covering the classes and methods rather than a written tutorial. That distinction matters for anyone expecting a guided walkthrough.
Where the AS3 Talking Avatar library for Starling Mobile fits, and where it does not
The strongest fit is an existing AIR project that already uses Starling and needs a speaking character added to one screen or sequence. Examples include a children’s storybook app with a narrator, a vocabulary app where a character pronounces words, a corporate training module with a presenter figure, or a game with a talking guide. In each case the developer already has the app, the audio pipeline and the art direction; the library supplies the synchronisation layer.
It also suits prototyping. A freelancer pitching a character-led app concept can wire up a working talking avatar in an afternoon using the bundled vector characters, then show the client something interactive rather than a static mockup.
The wrong choice is any project outside the Adobe AIR ecosystem. This is ActionScript 3 running on the Starling framework, so a team building in Unity, native Swift or Kotlin, Flutter, React Native or a web stack cannot use it at all. It is equally unsuitable for anyone wanting a full character animation system with body movement, expressions, scene direction or a visual editor — this library animates a mouth against audio and does nothing beyond that. Projects that need photorealistic or pre-rendered video avatars should look elsewhere too; the included assets are vector illustrations.
Setting up the library in a real project
The prerequisites are specific. A developer needs Adobe AIR, the Starling framework, an ActionScript 3 development environment — the package includes a FlashDevelop .as3proj sample project, so FlashDevelop is the path of least resistance — and a working knowledge of event-driven AS3. Familiarity with Starling’s display list is assumed, since the avatar is added to a holder sprite that the developer creates and positions.
The integration sequence is short. Import the two classes, declare an avatar variable, build a holder sprite with explicit dimensions, instantiate the avatar, attach event listeners for the avatar-loaded and voice-loaded events, set the avatar and voice URLs, and call the load method. The voice load is triggered from inside the avatar-loaded handler, and playback from inside the voice-loaded handler. Cleanup is a single dispose call. A developer comfortable with AS3 can read the sample project and have a working avatar on screen in well under an hour; allowing half a day for a first attempt, including asset preparation and testing on a device, is realistic.
The main practical constraint is asset preparation. The avatar graphic must be supplied in the expected format, and the voice must be an MP3. The vendor does not state recommended file sizes, bitrates or avatar dimensions, so those limits have to be established by testing on target devices.
Strengths and limitations
Strengths
- Genuinely small footprint: two classes, a handful of methods and events, no framework lock-in beyond Starling itself.
- Playback control is complete for the common cases — pause with a returned position, resume from that position, stop, and a finish event.
- Five ready-made vector avatars mean the library can be evaluated before any art budget is committed.
- Source code is included, so behaviour can be modified rather than worked around.
- Memory disposal is built in, which is more than many small AIR utilities offer.
- At $18 the cost is trivial against the development time of writing a lip-sync routine.
Limitations
- The documentation is ASDoc reference material, not a tutorial. Developers new to Starling will be reading class signatures to work out the flow.
- There is no visual editor or timeline. Every avatar and voice pairing is configured in code.
- The lip-sync is driven by the audio file rather than by phoneme data, so mouth shapes are approximations rather than accurate speech animation — acceptable for stylised characters, not for realism.
- The dependency on the third-party DMT library for texture generation adds an external repository to the build, and the vendor does not document how to obtain or version it.
- No stated device testing matrix, performance guidance or file-size recommendations; all of that falls to the buyer.
- Confined to Adobe AIR. Given AIR’s shrinking role in mobile development, the long-term usefulness of the purchase depends on staying in that stack.
How it compares with the wider category of avatar and lip-sync tools
Broadly, a developer wanting a talking character has three routes: build the synchronisation manually, buy a component like this one, or adopt a larger character animation platform. Building manually means writing audio-position tracking and frame selection, which is a day or two of work plus debugging on device — not enormous, but not free either.
Larger animation platforms offer scene composition, expression libraries, body rigs and sometimes cloud rendering. They also carry heavier integration costs, subscription pricing and their own runtime assumptions. This library sits at the opposite end: it does one thing inside an existing Starling project and stays out of the way. For a project that needs exactly that, the smaller tool is the better fit; for a project that needs a character to walk, gesture and emote, it is the wrong category entirely.
Against generic MP3 playback utilities, the difference is the avatar coupling — the mouth animation and the audio share a single object with a single lifecycle, which removes a class of synchronisation bugs.
Frequently Asked Questions
What is the AS3 Talking Avatar library for Starling Mobile used for?
It adds a lip-syncing animated character to Adobe AIR mobile apps built with the Starling framework. The developer supplies a vector avatar and an MP3 voice clip, and the library loads both, plays the audio and animates the mouth in time with it. It is a component for existing projects, not a standalone app.
Does it work with Unity, Flutter or native iOS and Android development?
No. It is written in ActionScript 3 and depends on Adobe AIR and the Starling framework, so it only runs inside AIR projects. Teams working in Unity, Flutter, Swift, Kotlin or any web stack cannot use it. The library targets iOS and Android only through AIR’s cross-compilation, plus Starling desktop apps.
Can the avatar’s voice clip be paused and resumed mid-sentence?
Yes. The pause method stops playback and returns the current position in milliseconds, and that value can be passed into the play method to resume from the same point. A separate stop method halts the audio entirely, and an event fires when the clip finishes naturally.
Is the source code included, and can the avatars be replaced?
Yes to both. The package contains the full ActionScript source files alongside a FlashDevelop sample project, so the behaviour can be modified. Five sample vector avatars are bundled for testing, and the avatar URL is set in code, so custom artwork can be substituted provided it matches the expected format.
Verdict
Buy this if the project is already an Adobe AIR app on Starling and needs a talking character on one or more screens without building the synchronisation layer. The price is low, the API is compact, and the included avatars let a team validate the idea quickly. Skip it if the stack is anything other than AIR, if the character needs body animation or realistic speech, or if the team expects written tutorials rather than class reference documentation. It is a focused utility for a narrow audience, and it is honest about being exactly that.
