Consultant CASL Research Centre

School of Health Sciences

Professor Alan Wrench has been involved in the research and development of speech technology and instrumentation since 1984. He obtained a BSc Hons in Electrical and Electronic Engineering  from the University of Edinburgh in that year and specialised in speech signal processing, obtaining a  PhD on that topic from the same department in 1989. At the Centre for Speech Technology Research, University of Edinburgh, he worked on the processing of speech acoustics for automatic speech recognition systems and speaker verification systems and on visual feedback software for clients such as glossectomee patients. In 1995 he moved institution and the focus of his research widened to include processing of various types of speech analysis instrumentation.

At Queen Margaret University Dr Wrench was responsible for constructing and utilising a combination of instruments for measuring speech articulatory movements and the author of the MOCHA articulatory database. He went on to develop the optopalatograph, an instrument for measuring tongue movement using reflected light.

After a short period working in industry developing automatic speech recognition systems, Dr Wrench returned to Queen Margaret to take charge of the development and support of EPG and in Autumn 2003 this enterprise was spun out from the university to become an autonomous business.

Professor Wrench's research focuses on the development of electronics, software and computer processing techniques for visualising speech.

Publications for Alan Wrench