Acapela Group

What Is Acapela Group?

In 2003, three European speech technology companies that had been building independently for decades merged into a single entity. Babel Technologies had been operating in Mons, Belgium since 1997. Infovox had been building voice synthesis in Stockholm since 1983. Elan Speech had been working in Toulouse since 1980. Together, they formed Acapela Group — a company that today holds over 20 years of its own institutional history, and whose constituent parts stretch back to the earliest era of computational speech synthesis.

That history matters. When ElevenLabs raised $180M and Gradium came out of stealth with a $70M seed, those companies were hiring researchers, establishing processes, and writing their first enterprise contracts. Acapela Group was in its third decade of delivering speech systems to public transport networks, assistive technology devices, kiosk hardware, educational software, and healthcare applications across Europe. That accumulated operational credibility is not glamorous, but it is durable.

The company is headquartered in Mons, Belgium — an EU member state — and since April 2022 has been a wholly owned subsidiary of Tobii Dynavox, the Swedish leader in augmentative and alternative communication (AAC) devices. The acquisition price of EUR 9.8 million reflects Acapela's position as a specialist B2B provider rather than a high-growth consumer platform. The parent company is Swedish, which means the entire ownership chain sits within the EU — an important distinction from US-parented competitors.

Key Features

Neural TTS with 200+ Voices Across 30+ Languages

Acapela's voice catalogue is its most immediately visible asset: 200+ neural voices across more than 30 languages, including regional European languages and dialects that many modern TTS providers ignore. German, French, Spanish, Dutch, Polish, Danish, Finnish, Norwegian, Swedish, Portuguese, Italian, and several others are available with multiple voice options per language.

The quality has improved significantly with Acapela's transition to neural TTS architectures. Neural voices are more natural, more prosodically varied, and more robust to unusual spellings or abbreviations than the earlier HMM-based voices that Acapela was known for. For enterprise applications where the TTS voice is the primary interface — a kiosk, a phone menu, a navigation system — this quality improvement directly affects user experience.

Crucially, Acapela offers children's voices — a distinct and rare category in professional TTS. Children's voices are used in educational applications, reading assistance tools, and accessibility software for younger users. Few commercial providers maintain this category at professional quality.

Acapela Cloud API

The Acapela Cloud is the product's primary interface for modern application development. It is available as a REST API for integration into web and mobile applications, or as a standalone online service for generating audio files. The API supports SSML (Speech Synthesis Markup Language), which gives developers fine-grained control over pronunciation, emphasis, speed, pauses, and prosody — essential for applications where natural-sounding delivery is important.

A three-month free trial gives potential customers enough time to run a genuine evaluation: long enough to test the API under realistic load, assess voice quality for specific languages and use cases, and involve procurement teams in the assessment process. Production pricing is custom and requires contacting sales — a friction point for developers who prefer self-serve evaluation.

Embedded SDK for Offline Deployments

This is where Acapela's enterprise depth is most visible. SDK licences are available for Windows (via SAPI integration), iOS, Android, and embedded Linux. The SDK enables fully offline TTS — no internet connection required — making it deployable in environments where cloud connectivity cannot be guaranteed: underground transport stations, medical device firmware, vehicle navigation systems, field equipment, and industrial control interfaces.

The licensing model follows hardware unit economics: a one-time SDK fee followed by a royalty agreement based on units shipped, languages included, and voices used. This is standard for embedded software but very different from the per-character or per-token pricing of cloud API competitors. For organisations shipping hardware at volume, the royalty model can be more economical at scale than cloud billing.

My-Own-Voice: Personalised Voice Preservation

My-Own-Voice is the most emotionally significant product in Acapela's catalogue. It allows individuals to record a personalised voice bank while they can still speak, which is then synthesised into a custom TTS voice that can be used if they lose the ability to communicate naturally. The service is used primarily by people diagnosed with ALS (Motor Neurone Disease), multiple sclerosis, or other progressive conditions that eventually affect speech.

Acapela's acquisition by Tobii Dynavox deepened the deployment context for this service. Tobii Dynavox is the world leader in AAC devices — communication aids used by non-speaking individuals. My-Own-Voice voices integrate directly into Tobii Dynavox devices, meaning someone who banks their voice with Acapela can continue communicating through a device that sounds like them, even after they lose speech.

This is not a feature that can be evaluated with a pricing calculator. It is a 20-year institutional commitment to a use case that most commercial voice AI providers do not serve at all.

Custom Voice Creation for Brands

Beyond personal voice preservation, Acapela offers branded voice creation for organisations. A bank, transport operator, or retailer can commission a voice built to their specifications — tone, gender, personality — that becomes a proprietary brand asset. Deployment is available through both the Cloud API and embedded SDK, with the organisation retaining the voice as exclusively theirs.

Pricing

Acapela's pricing is not self-serve. The Cloud API is available following a three-month free trial, after which production pricing is negotiated based on volume, use case, and required SLAs. The SDK licensing follows a similar model: one-time licence fee plus royalties calculated by units and languages. My-Own-Voice pricing is project-specific.

This approach reflects Acapela's B2B orientation. Enterprise buyers in transport, healthcare, and government procurement expect customised pricing, extended trials, and contractual arrangements. Acapela is structured to serve those buyers, which means the self-serve developer experience that modern API-first competitors prioritise is not Acapela's focus.

For organisations evaluating Acapela, the three-month trial is the practical entry point. It is long enough to assess the voice catalogue, API performance, and language coverage in context — and it includes basic support. After the trial, commercial discussions happen with an account team rather than through a checkout flow.

EU Compliance & Privacy

Acapela Group's compliance posture is structurally strong in ways that matter for European enterprise buyers. The company is headquartered in Mons, Belgium — an EU member state. Its cloud infrastructure is EU-hosted. The parent company, Tobii Dynavox, is Swedish — so the entire corporate chain sits within the EU, with no US-parented entity in the ownership structure.

For organisations subject to GDPR, this structural positioning provides meaningful assurances: data processors within the EU, corporate governance under EU jurisdiction, and no requirement for Standard Contractual Clauses to legitimise cross-border data transfers within the EU. Healthcare, government, and financial services buyers — sectors where GDPR compliance is not optional — will find Acapela's compliance posture among the clearest of any voice AI provider available in Europe.

The My-Own-Voice service handles particularly sensitive data — personalised voice recordings that constitute both biometric data and, for users with progressive conditions, deeply personal expressions of identity. Acapela's long operating history in this space means consent processes, data retention policies, and security protocols are mature, not newly established.

Acapela has not published specific security certifications such as ISO 27001 or SOC 2 on its public website, which may require clarification during enterprise procurement. Given the company's history of serving healthcare and government clients, internal certification standards are likely robust — but formal third-party certification should be confirmed directly.

Who It's Best For

Enterprise technology buyers in transport, healthcare, and education who need reliable, audited TTS with EU data residency, multi-language coverage, and an established vendor relationship. Acapela has done this for two decades; its operational credibility in these sectors is genuine.

Individuals with progressive conditions who want to bank their voice before speech loss. My-Own-Voice, integrated into Tobii Dynavox AAC devices, is the most mature service of its kind available from any EU-based provider.

Hardware manufacturers and embedded device teams who need offline TTS in devices where cloud connectivity is not guaranteed. The SDK licensing model, SDK quality, and language coverage are suited to this use case in a way that API-only competitors are not.

If you are a developer wanting a self-serve API with transparent pricing, a modern documentation portal, and fast onboarding, Acapela's model will frustrate you. Gradium and ElevenLabs both offer cleaner self-serve experiences. For prototyping, Gradium's free tier is more immediately accessible. Acapela's strength is in regulated, long-cycle enterprise procurement — not rapid developer iteration.

The Verdict

Acapela Group is not competing with ElevenLabs for consumer developers or with Gradium for real-time voice agents. It is competing — and winning — in a different market: embedded devices, assistive technology, enterprise TTS, and regulated industries where the 20-year operating history, EU compliance, and offline SDK capability matter more than voice library size or API simplicity. The acquisition by Tobii Dynavox has given it a stable ownership structure and a deployment channel directly into AAC devices. For European organisations building voice into hardware, accessibility tools, or regulated enterprise software, Acapela Group remains one of the most credible choices available.

Frequently Asked Questions

Is Acapela Group GDPR compliant?

Yes. Acapela Group Babel Technologies SA is a Belgian company with EU-hosted infrastructure. Its parent company, Tobii Dynavox, is Swedish. The entire corporate chain is EU-based, meaning GDPR compliance is structural — no cross-border transfers outside the EU are required. This gives regulated European buyers one of the clearest data governance positions available from a voice AI provider.

Who owns Acapela Group now?

Acapela Group was acquired by Tobii Dynavox in April 2022 for EUR 9.8 million. Tobii Dynavox is the global leader in assistive technology for communication and is a subsidiary of Tobii AB (Sweden). Acapela continues to operate independently from its headquarters in Mons, Belgium.

Can Acapela TTS run offline or on embedded devices?

Yes. Acapela provides SDK licences for Windows (SAPI), iOS, Android, and embedded Linux that enable fully offline TTS operation — no internet required. Licensing is based on a one-time SDK fee plus royalties calculated by units shipped, languages, and voices. This model suits hardware manufacturers shipping products at volume.

How does Acapela Group compare to ElevenLabs?

Acapela is a 20-year European B2B TTS specialist with deep expertise in embedded devices, assistive technology, and regulated industries. ElevenLabs is a newer US-based platform with a superior self-serve API, larger voice library for content production, and a faster feature release pace. Acapela wins on EU structural compliance, offline SDK capability, and enterprise operational history. ElevenLabs wins on modern developer experience and voice quality for content creation.

What is My-Own-Voice from Acapela Group?

My-Own-Voice is Acapela's personalised voice preservation service. It allows people diagnosed with progressive conditions — such as ALS or motor neurone disease — to record their voice while they can still speak. Acapela synthesises those recordings into a custom TTS voice that sounds like them. This voice can then be deployed through Tobii Dynavox AAC communication devices, allowing the person to continue communicating in their own voice even after losing the ability to speak naturally.