Sylvain Chevalier

Sylvain Chevalier

Director of Engineering at Scientific Learning

Currently employed at Ispikit

Previous: Scientific Learning, Saybot, Centre d'Expertise Parisien, Délégation Générale pour l'Armement


Previous: Université Paris 5 René Descartes, INPG ENSIEG, Lycée Saint Louis



    Technical team leader with expertise in speech technologies and passion for building software. Eight years of start-up experience in the field of software for education, including building and leading teams of engineers and linguists through the entire release cycle. Based in Shanghai since 2005, hoping to relocate back to Paris in 2013. Author of Pocketsphinx.js:



At Ispikit

From April 2011 to Present
Ispikit develops pronunciation assessment technologies running on mobile devices, desktop computers and as a web service. English learning websites and businesses integrate them into their existing platform and curriculum.

Director of Engineering

At Scientific Learning

From May 2010 to October 2013
With the general manager, opened a development office in Shanghai and built the engineering team. The Shanghai office is in charge of the Reading Assistant, a web application to help children improve their reading skills with real-time intervention powered by speech recognition.

Director of Speech Technology

At Saybot

From May 2005 to May 2010
Saybot is a Chinese start-up that develops educational software built upon speech recognition. I was in charge of the core technology team and built desktop and web applications for English learners in China.

Research Engineer - PhD candidate

At Centre d'Expertise Parisien, Délégation Générale pour l'Armement

From September 2001 to December 2004
Proposed, implemented and evaluated a 2D generic approach for handwriting recognition by extending 1D techniques used in speech to 2D (Markov modeling, dynamic programming and cepstral feature extraction).


MSc in Electrical Engineering, INPG ENSIEG

From September 1998 to June 2001

Lycée Saint Louis, Paris

Classes préparatoires (Math Sup - Math Spé)

From September 1995 to June 1998


  • Android development
  • C++ programming
  • IOS development
  • JavaScript
  • Linux
  • Speech recognition

Langues parlées


Centres d'intérêt

  • languages
  • linguistics
  • open source