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The fastest and easiest solution to create your own embedded voice assistant
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Everything you need inside one software development kit

The Voice Development Kit (VDK) is a multifunctional software development kit combined with an intuitive graphical user interface specialized for voice use cases. It allows any company and any developer to configure an offline voice solution composed of one or more voice-based technologies (transcription, synthesis, biometrics…) in record time.

For many years, Vivoka developed custom voice solutions for its customer. Each project was a real challenge since they required multiple technologies from many companies. Agregating multiple solutions, partners and proprietary, is the aim of the Voice Development Kit.

The Voice Development Kit is the combination of a powerful SDK and an intuitive graphical user interface, the Studio. Resources from the engine can be used through smart widgets and tutorials to create any kind of embedded voice solution.

Companies and developers will fill their expectations using the Voice Development Kit. It allows its user to build from scratch (code-only) going in depth or to be guided with the Studio’s tutorials and user-friendly tools.





An easy workflow to produce any kind of
embedded voice solution

Rapidly iterate and update your voice assistant using the Voice Development Kit, the unique to 360° tool to produce voice solution for business and developers.



Use the Voice Development Kit to create your own voice assistant based on edge voice technologies.



Test your code in the Voice Development Kit Studio and integrate your voice solution into hundreds of devices.



Enjoy reliable, intuitive and embedded voice commands, synthesis or biometrics inside your products.

Technologies inside the Voice Development Kit

The Voice Development Kit contains a complete range of voice technologies, from voice commands to biometrics through synthesis or speech signal modification. Pick one or more technologies to begin with.

Wake-up Word

Easy tool to generate multilingual wake word to embed in devices for system activation


Continuous and multilingual voice transcription to automaticaly turn voice into text

Automatic Speech Recognition

Grammar-based voice commands for voice interactions that contains specific vocabulary


Automatic generation of multilingual and customizable voices that runs offline on device

Voice Biometry

Authenticate and/or identify users with light and reliable on-device voice biometrics models

Audio Front End

Technology to evaluate the speech signal quality and apply specific sound filters to improve it

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Scalable voice technologies for small players to worldwide corporations

With more than 5 years of experience in voice technologies for company-size projects, Vivoka has gathered a lot of applied know-how in several business domains and disciplines. Our technologies and services are able to scale independently regarding number of users, geographical regions or technical requirements and specificities.

Reasons to chose the Voice Development Kit

Among many different voice solutions, the Voice Development Kit has perks that can drastically fit your project more than other providers, here is why.

Offline Reliabilty

No Internet connection, no problem. VDK’s technologies are robust enough to work in remote locations or environements with poor connectivity, so you can take advantage of voice interaction anywhere with full functionality.


Hardware Flexibility

The Voice Development Kit is the first embedded voice interface that adapts to your exact use cases with a perfect polyvalence regarding MPUs or other electronics, branded or proprietaty.


Privacy By Design

VDK’s technologies run locally and on-device, with no end-user voice data transferred or analyzed in the cloud. Our privacy safeguards at the product, algorithm, and business-model level enable compliance with the strictest data regulations.

multilingual conversations

Technologies inside the VDK understand and respond to you naturally in multiple languages. With deep voice integrations for the space around you, enjoy the smoothest way to interact with your devices.

Upfront Pricing

Don’t get lost in cost per request, master your budget with a one-time, per device license fee that keeps your costs predictable. Other business models are available such as subscription, it depends on your project’s nature.

Cloud-level Performance

Our low-latency voice interface performs dramatically better than cloud solutions, while running in real-time on a more efficient power footprint. Vivoka achieves cloud-level accuracy on the edge across a rich set of use cases.

What are clients tell about us

Customer satisfaction is Vivoka’s top priority, wether its on the technical side or our service quality.

Many areas equipped with Vuzix Smart Glasses are affected by specific environments that make it difficult to have perfect connectivity. Vivoka’s solutions can run offline, on-device, to operate anywhere, anytime and with a broad language support capability which is for our products a distinct competitive advantage.

Paul Travers

Chief Executive Officer

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Interoperability between several solutions must be invisible to the user. This is the challenge! Today, ZBOS embeds TTS (Text To Speech) and ASR (Automatic Speech Recognition) solutions. In this sense, we have found with Vivoka a technology that works very well, reliable and up to our needs and challenges.

Tommy Deblieck

Co-founder & CEO

With our expertise in Embedded Linux and Vivoka Voice Development Kit we can quickly customize and integrate their technology to demonstrate the benefit of speech recognition and text to speech for any type of product from industrial ovens to coffee machines. Their framework is a great solution for all our projects with embedded voice commands.

Cédric Vincent

VP of Technology

About Vivoka

Vivoka is a French company with 5 years of expertise in the field of voice technologies (automatic speech recognition, voice synthesis, wake word…). Its objective is to offer relevant and adapted solutions to companies wishing to invest in voice interfaces for their business.

International Clients/Partners

Years Of Exprerience

Active Voice Devices

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