Education:
Siv.Ing (acoustics) The Norwegian Institute of Technology (1968),
graduate studies in theoretical acoustics: The Norwegian Institute of Technology (1971-72),
graduate studies in psychology: Trondheim University (1973)
Research scientist: SINTEF, Norway, (1967----)

Science exchange program: Bolt, Beranek & Newman, 1984

Selective experience:
NTH University Bookstore & Publishing Company, CEO: 1971-74
Board of Directors, member 1974-84
SINTEF, Board of Directors, member 1977-83
University Student Union, Financial Board of Directors, CEO 1985 - 1990
Member of Acoustical Society of Norway
Member of Acoustical Society of America
East European Acoustical Association, honorary member 2002
Acoustical Society of Norway, NAS, president 1974-78, and 1996-2000
Federation of Acoustical Societies of Europe, FASE, secretary 1995
European Acoustics Association, EAA, vice president 2002-04
International Commission on Biological Effects of Noise, ICBEN, Team 6
Member since 1985,
Team chair since 1998
European Consortium for Informatics and Mathematics, ERCIM
Editor, ERCIM, News, since 1992

International conferences:
FASE, 4th Congress 1984, President of the Organizing committee
EUREKA, Vision Eureka 94, member of the Organizing committee
ICA, 15th Congress, 1995, President of the Organizing committee
CONNECT 99, Member of the Organizing committee

Session organizer at international conferences (ICA, InterNoise, etc.)
Member of working groups and technical committees (ISO TC 43, I-INCE, etc.)