Voiceful Characters

Expressive voice generation for virtual characters
in Unity applications and games.


There are three different versions available as Unity Packages, you can check the features of each here. Once you download the package you can follow the install instructions in the documentation page. We provide a free evaluation version and a trial test application of the software on this website. After purchase no refund will be possible.


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Available on request, if you are interested in the unlimited full featured PRO version, please contact us to get a quote for your game


Three different options available to suit your needs.

Version feature Free Lite PRO
Sentence render limit 5 words Unlimited Unlimited
Voice presets 3 10 10 + custom
Support for custom voices
See additional services below
No Yes Yes
Voice design and cloning No No Yes
Support type F.A.Q. and docs F.A.Q. and docs Email / Call
Financial eligibility Commercial use for annual revenues or raised funds less than €100k EUR Commercial use for annual revenues or raised funds less than €100k EUR Commercial use with no limits in revenue or funding
Purpose eligibility
Only apps or games launched for end-users are eligible. Contact us for B2B projects.
Single app or game Single app or game Up to ten apps or games
License price
Perpetual license
Free € 60 EUR Contact us
Purchase License download now buy now Contact us


Additional service Price
Custom voice model creation
(client provides real voice talent recordings and transcripts)
Get a quote
Voice talent selection & recordings
(service to find and record a voice talent for a custom voice in our studios)
Get a quote


State of the art Voice generation

Our expressive voice generation approach, based on Deep Learning, is able to generate AI voices with high realism. It can convert text-to-speech for different types of game character voices (human-like, monsters, robots,...) and emotions (neutral, angry, afraid,...).

Easy integration into Unity projects

We provide Unity packages with a plug-in and sample scenes so you can import them into your project without fuss and get started quickly.

Complete and standalone solution

The plug-in doesn't require internet connection or external dependencies, as all of the synthesis is done inside of your application or game. Audio clips can be generated and played back on-the-fly.

Flexible and customizable

We offer built-in factory voice presets and the possibility to design your own (PRO version only). Also, you can either apply standard Unity audio effects to the synthesized voice or use your own custom processing.


Windows and OSX plug-ins available, with mobile platforms to come soon!


Trial demo app of the PRO version is available*.

*Trial version is limited to 15 days with up to 15 words per sentence and 30 synthesized sentences per hour.

Download for Windows Download for OSX


If you want to get an idea of how the plug-in and the Unity integration works (as well as the available API), please visit the documentation page.


Subscribe to our mailing list for updates and availability dates.


Voiceful combines +15 years of R&D expertise in audio and music technologies with latest artificial intelligence for voice generation. Our patented technologies originate from academic research carried out by Voctro Labs’ cofounders at MTG-UPF, and since 2011 they have been integrated in award-wining applications worldwide. Our technology portfolio is being continuously extended with recent research in the field.

Last updated 14th August 2019