## “LISTEN TO THE LISTED”

Tor Halmrast, Statsbygg, Oslo, Norway th@statsbygg.no

(Head of Acoustics, Statsbygg, Norwegian State, Directorate of Public Construction and Property,

Associate Professor, Univ. Oslo, Dept. for Musicology)

ABSTRACT: Statsbygg (Directorate of Public Construction and Property) is in charge of many old buildings in Norway, most of them “listed” by the Directorate for Cultural Heritage (Riksantikvaren). In this paper we will look briefly at some of the many projects of maintaining such buildings, and we will look mostly at buildings that are interesting regarding acoustics, both as a possible problem of obtaining acoustic environments suitable for today´s use, and some example where the old acoustics itself should be regarded “listed” as a cultural heritage. Among others, we will look at the National Theatre, The Aula and the Festival Hall of the (old) University of Oslo, Norw. Prime Court, The University of Environment and Biology (Ås), Oslo City Hall, and some churches and buildings for education.