Create your embedded voice assistant in 60 minutes.

What is the VDK ?

The Voice Development Kit (VDK) is a multifunction software development kit (SDK), combined with an intuitive graphical user interface, specialized for voice technologies.

It allows any company and any developer to configure an embedded voice assistant composed of one or more technologies (transcription, synthesis, grammar management…) in record time. The complexity inherent to the technologies and associated plugins has been abstracted and optimized through our know-how.

1. A graphical interface designed by voice experts.
All tools on a single platform.

Many plugins are to be used in parallel to carry out the creation of voice features. With VDK, everything is on the same software and the same interface in a single view.
Access new technologies and powerful tools very simply.

Simplified workflows.

The development processes have been redesigned through the VDK. Indeed, from the grammar setting, through the code, to the testing and integration phase, everything happens on the VDK interface. Moreover, all tools run on the same operating system.

2. All the tools and plugins needed for your projects.
Powerful configuration and customization modules.

Grammar Editor, COPFile Editor, Voice Studio... All these tools are at your disposal for the different stages of creating voice features: creating recognized vocabularies, customizing synthetic voices, managing dynamic files...

"Simple Assistant Maker" to set up and test your commands.

SAM is a tool imagined and created by Vivoka in order to create a functional voice assistant in a minimum amount of time. This plugin needs a command to be recognized, a response to be given, and a script to be executed, in order to work. All commands are testable in real time.

3. Tutorials, sample codes and documentation to help you.
Step-by-step guides for each voice feature.

It is often complicated to navigate through the first steps of creating a voice interface. To reduce this complexity, tutorials (creation of an ASR, a TTS...) are available to accompany you step by step in the development of your project.

Sample codes and documentation available on the interface.

The most popular use cases are associated with example codes to facilitate the understanding of the technologies. For more complex cases, complete documentation and our services are available via the Voice Development Kit platform.

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ASR available languages.


TTS available languages.

You can try the VDK for free !

These sectors use the Voice Development Kit

Remove the complexity of voice solutions ?

With more than 5 years of experience in the field of voice, our observation is simple: evolving from standard interfaces to voice interfaces is very complex for companies today. Finding a solution that is efficient, adapted to the need, easy to use and to integrate (on average 6 months to complete a project) is a real challenge.

The number of different technologies required, their non-adaptability and their own difficulty are all reasons to choose the Voice Development Kit.


Reduce the investment costs of your innovation project with VDK.

With the VDK, you’ll need less development time, less training required, one prestatary, one software: all to simplify your projects and save you money.


Improve the time-to-market of your voice projects.

As mentioned in the previous point, the VDK allows you to create your voice features in record time. Usually it takes about 6 months to complete a project, this time is divided by 3 with VDK.


Have access to state-of-the-art embedded technologies.

The VDK contains the state of the art in embedded voice technologies, usually extremely complex but now simplified. You will find transcription and speech synthesis engines for example.

(You can select more than one choice)