Matti Antero Karjalainen (April 2, 1946 â May 30, 2010) was a Finnish speech processing researcher and inventor in the fields of speech synthesis, speech analysis, speech technology, audio signal processing and psychoacoustics. He was the head of Acoustics Laboratory at the Helsinki University of Technology from 1980 to 2006.
Karjalainen studied electronics at the Tampere University of Technology, where he obtained a M.Sc. (Dipl.Eng.) in 1970, a Lic.Tech. in 1974, and a Dr.Tech. (with honors) in 1978.
Karjalainen created 1979 Synte 2, the first portable text-to-speech synthesizer powered by a microprocessor.
He was the head of Acoustics Laboratory at the Helsinki University of Technology from 1980 to 2006. He became an associate professor in 1980 and a full professor in 1986. He was the supervisor of 24 doctoral theses and over 100 master's theses. His laboratory is now part of the Department of Information and Communications Engineering of the Aalto University.