Abstract
The role of the Bayreuth Festspielhaus in the development of the modern opera house is well known. In spite of the prestige of the Festspielhaus, the values of its room acoustics criteria have been analyzed and reported in few works. A measurement campaign has been recently made in the theatre, placing directional and omnidirectional sources on the stage and in the orchestra pit. Monaural and binaural impulse responses have been recorded on a dense mesh of receivers. Normal factors have been extracted and subjective scale values have been estimated taking into account the peculiarity of the Wagnerian opera.