Acapela Group

Visiting address

Boulevard Dolez 33



Postal address

Boulevard Dolez 33

Mons , 7000



Tel +32(0)65374275

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Company information

"Acapela Group accompanies you in public transport - Realtime Automated voice announcements"

Acapela Group, the leading voice expert with 30 years of experience behind it, invents Text to Speech (TTS) solutions to give your content a voice in over languages. We create authentic TTS voices that express meaning and intent. Over 100 voices are ready to speak, producing a natural and pleasant audio result, by turning written input into speech.

Acapela Group is a European Speech Technology company with offices in Belgium, France and Sweden and we accompany our customers in their Public Transport projects with real-time automated voice announcements.

Acapela's TTS is currently being used by Public Transportation networks all over the world, including USA, Canada, France, UK, German, Belgium, Germany, Austria, Switzerland, Netherlands, Sweden, Norway and Finland. Acapela has provided custom TTS voices and services to Railway companies and Public Transport operators such as SNCF (France), Trafikverket (Sweden), SNCB (Belgium), Wiener Linien (Austria). Acapela is a provider of large Public Transport suppliers such as Bombardier, Alstom Transport, Ineo Systrans, Init and Höft & Wessel.

In early 2014, Acapela launched a Business Unit dedicated to Public Transport, which is currently developing new features and tools specially designed for public transportation companies.

We can create the voice your company needs. Just for you. This is Acapela bespoke expertise. Let’s talk!

Company information

Headquarters location Boulevard Dolez 33
7000 Mons
Office locations
Rue du Lac 102
31681 Labège Cedex
Some facts
Founded in
Founded by


  • New US English voice: ‘Sharon’
  • Acapela TTS voices for NVDA


  • Voice replacement: my-own-voice
  • New English Scottish voice, ‘Rhona’
  • Acapela Transport business unit
  • New French voice ‘Manon’
  • Genuine Bilingual American Spanish-English Children’s Text to Speech Voices, ‘Valeria & Emilio’


  • New Polish voice ‘Monika’
  • North American English and Spanish voices based on the same speaker, ‘Rod’ & ‘Rodrigo’
  • AVH Daisy books vocalization
  • Korean voice ‘Min-ji’
  • Sami voice
  • R&D – ‘ChanTER’ Singing TTS with real time control (partners DUALO, LIMSI, IRCAM)
  • R&D – ‘i-Treasures’
  • New children voices : English Australian (‘Olivia’ & ‘Liam’) and German (‘Lea’ & ‘Jonas’)
  • infovox 4


  • Acapela TTS voices for Android, on Google Play
  • 30 languages & 100 voices available ! (have a try on the online demo)
  • Child voices world premiere: ‘Ella’ & ‘Josh’ (US English) and ‘Rosie’ & ‘Harry’ (UK English) for & by children
  • 2.5 million talkative apps & 100 apps featured in the acapela for iOS gallery
  • Japanese voice, ‘Sakura’
  • Chinese voice, ‘Lulu’
  • Story telling voices Will, Antoine
  • Expressive voices: up to 4 different ways to express moods and feelings: happy, sad, fromAfar, Upclose (US English,UK English, French, Greek, Dutch B)
  • iVox 3: Voices for iMac OS X
  • online service
  • R&D – ‘MARDI’ project: Man Robot Dialogue in situated manner. (partners: SUPELEC, LIA, LAAS)
  • R&D- ‘D-BOX’project conversational & multilingual agents
  • R&D -‘content4all’ project: for long text reading enhancement


  • Character voices – Hip hop (Saul) & Country (Micah)
  • Swedish dialect voices : Göteborg & Skåne
  • Australian voice voice’ ‘Tyler’
  • Indian English voice ‘Deepa’
  • Celebrity voice: ‘Queen Elizabeth’
  • Solution for Android
  • R&D- DiYSE projects


  • PATENT HMM TTS: Speech Synthesis and Coding Methods – European patent application: EP 2 242 045 A1
  • Swedish of Finland voice (Samuel)for Nöss
  • Infovox3, all-in-one local & portable Talking companion for visually impaired users
  • Dedicated website for iPhone & iPad developpers :
  • 1st self-service audio production web app
  • MRCPv2 full support
  • R&D-‘Romeo’ project: humanoid assistant
  • R&D ‘Emospeech’ (Eurostar project ): natural and emotional interaction with virtual environments
  • R&D-‘Biospeak’ project: development & improvement of voice transformation paradigms


  • Full bilingual Arabic/English voice ‘Nizar’
  • Acapela Kiosk for audio publishing service
  • Acquisition of d-fabric, specialized in automatic text extraction and audio publishing.
  • Low Footprint voices for mobiles (LF)
  • R&D-‘GVLEX’ project: Gesture and voice for expressive reading


  •, online sparkling laboratory
  • Acapela TTS for iPhone SDK
  • Iso certification
  • on-line service for smart vocalization
  • First custom voices with Acapela voice Factory
  • First talking greetings with winter bunny
  • Infovox inKey
  • R&D – HMMTTS First Entreprise Project: new TTS technology based on HMM (Hidden Markov Models)


  • R&D- ‘Indigo’ project: human-robots interaction


  • Infovox iVox


  • R&D-Boon Companion (ITEA project)
  • R&D-DIVINES project: Diagnostic and Intrinsic variabilities in natural speech


  • Arabic 1st TTS
  • Infovox Desktop
  • R&D-ULYCES: Telematic platform for the automotive industry, based on Win CE technology. Virtual Speaker


  • Creation of Acapela Group. Merge of 3 speech Experts in Europe: Babel Technologies (BE), Elan speech (FR) & Infovox (SWE)
Company Size


  • Transport IT - Transport management / Data processing/ Information / Communication

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