出版社：Consejo Superior de Investigaciones Científicas
摘要：The process for the acustic arrangement of the classrooms called Pupil's Room, R Mariano and J. Zurita of the Philosophy Faculty of Valladolid is presented. The initial reverberation times, which were in the range 3.5-1 seconds, have been changed to the range 2.8 – 0.3 seconds (for the 20 thirds of octave between 100 and 8.000 Hz).
