product overviewsefrgb

All-in-one local & portable Talking companion for visually impaired users, infovox4 is an innovative yet simple and all-in-one product for seamless access to written information, no matter where the user is, at home, in the office or on the move using different computers.

infovox4, using Acapela speech synthesis, speech empowers any PC with pleasant voices, transforming any written text into speech, in real time.

infovox4 est le compagnon vocal tout-en-un, local & portable, pour les déficients visuels avec des voix très naturelles pour tous les ordinateurs que vous utilisez.

Infovox4 est une solution innovante et simple qui permet d'accéder librement à l'information écrite, quel que soit l'endroit où l'utilisateur se trouve, à la maison, au bureau, ou en déplacement, entre différents ordinateurs. Infovox4, qui utilise la synthèse vocale Acapela, transforme n'importe quel texte écrit en voix, en temps réel.

Lokal och portabel lösning för användning på olika datorer. infovox4 är en innovativ och lätthanterlig allt-i-ett-lösning för användning på olika datorer, var man än befinner sig, i hemmet, på jobbet eller någon annanstans.

Med infovox4 utrustas datorerna med Acapelas talsyntes som med tydliga och behagliga röster läser upp textbaserad information i realtid.

portablePortable use

Infovox4 is delivered as a USB stick allowing immediate access to any computer, without the need to install locally or admin rights.

local useLocal use

infovox4 can also be installed from the USB to up to 3 local computers. Local installations are independent and will work without the need to plug in the USB in the PC.

screenreadersScreen-readers and speech applications

infovox4 supports SAPI4 and SAPI5 for immediate and seamless integration with any screen-reader or any other speech enabled application.

includedIncluded applications

infovox4 includes the NVDA screen-reader, Speech Creator to create MP3 files for personal use, Voice Manager to customize voice settings, and Pronunciation Editor.

voice qualitiesVoice qualities

Two voice qualities available in each language: High Quality for pleasant reading and Colibri  for improved intelligibility at high reading speed.


Wide range of languages and choice of voices.

blog & news
  • acapela on linkedin
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Welcome new French and Norwegian children voices!

February 28, 2017

Let’s welcome Elise, Valentin, Elias and Emilie to the infovox4 family. Elise and Valentin are two French genuine children voices, Emilie and Elias two Norwegian genuine children voices extending the number of genuine Children voices in infovox4 to 17 voices! […]

Update to NVDA 2016.4

January 16, 2017

Today we released an update of infovox4 that brings you the newest version of the NVDA screenreader: NVDA 2016.4. This update has version number 4.2017.01.03. For an history of infovox4 updates, look here.

New update available

December 15, 2016

Version 4.2016.12.15: Fix issue with longer pauses in certain contexts like reading of tables. This issues affected all voices, but was particularly noticeable for the Swedish voice Ingmar. This update fixes the issue by setting pauses back to the usual […]